UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Form 10-K
ANNUAL REPORT PURSUANT TO SECTIONS 13 OR 15(d) OF THE SECURITIES
EXCHANGE ACT OF 1934
   
þ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
FOR THE FISCAL YEAR ENDED DECEMBER 31, 2009
   
o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 2008
Commission file number 1-2198
The Detroit Edison Company, a Michigan corporation, meets the conditions set forth in General Instruction I (1) (a) and (b) of Form 10-K and is, therefore, filing this form with the reduced disclosure format.
THE DETROIT EDISON COMPANY
(Exact name of registrant as specified in its charter)
   
Michigan38-0478650

(State or other jurisdiction of incorporation or
(I.R.S. Employer

organization)
 38-0478650
(I.R.S. Employer
Identification No.)
   
One Energy Plaza, Detroit, Michigan48226-1279

(Address of principal executive offices)
 48226-1279
(Zip Code)
313-235-4000
(Registrant’s telephone number, including area code)
Securities registered pursuant to Section 12(b) of the Act:
None
Securities registered pursuant to Section 12(g) of the Act:
None
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.Yeso Noþ
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.Yeso Noþ
Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.Yesþ Noo
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yeso Noo
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of the registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.oþ
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):
       
Large accelerated filero Accelerated filero Non-accelerated filerþ Smaller reporting companyo
    (Do not check if a smaller reporting company)  
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).Yeso Noþ
All of the registrant’s 138,632,324 outstanding shares of common stock, par value $10 per share, are owned by DTE Energy Company.
DOCUMENTS INCORPORATED BY REFERENCE
None
 
 

 


 

The Detroit Edison Company
Annual Report on Form 10-K
Year Ended December 31, 20082009
Table of Contents
   
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 Supplemental Indenture dated as of December 1, 2008EX-4.267
 Twenty-Eighth Supplemental Indenture, dated as of December 1, 2008EX-4.268
 Computation of Ratio of Earnings to Fixed ChargesEX-12.36
 Consent of Deloitte & Touche LLPEX-23.22
 Chief Executive Officer Section 302 Form 10-K CertificationEX-23.23
 Chief Financial Officer Section 302 Form 10-K CertificationEX-31.53
 Chief Executive Officer Section 906 Form 10-K CertificationEX-31.54
 Chief Financial Officer Section 906 Form 10-K CertificationEX-32.53
EX-32.54

 


Definitions
ASCAccounting Standards Codification
ASUAccounting Standards Update
   
CTA Costs to achieve, consisting of project management, consultant support and employee severance, related to the Performance Excellence Process
 
Customer Choice Statewide initiatives giving customers in Michigan the option to choose alternative suppliers for electricity.
 
Detroit Edison The Detroit Edison Company (a direct wholly owned subsidiary of DTE Energy Company) and subsidiary companies
 
DTE Energy DTE Energy Company, the parent of Detroit Edison and directly or indirectly the parent company of numerous utility and non-utility subsidiaries
 
EPA United States Environmental Protection Agency
 
FASB Financial Accounting Standards Board
 
FERC Federal Energy Regulatory Commission
FSPFASB Staff Position
FTRsFinancial transmission rights
 
MDEQ Michigan Department of Environmental Quality
 
MISO Midwest Independent System Operator, ais an Independent System Operator and the Regional Transmission Organization serving the Midwest United States and Manitoba, Canada.
 
MPSC Michigan Public Service Commission
 
NRC Nuclear Regulatory Commission
 
PSCR A power supply cost recovery mechanism authorized by the MPSC that allows Detroit Edison to recover through rates its fuel, fuel-related and purchased power expenses.costs.
 
Securitization Detroit Edison financed specific stranded costs at lower interest rates through the sale of rate reduction bonds by a wholly ownedwholly-owned special purpose entity, theThe Detroit Edison Securitization Funding LLC.
 
SFAS Statement of Financial Accounting Standards
   
Units of Measurement
GWhGigawatthour of electricity
kWh Kilowatthour of electricity
 
MW Megawatt of electricity
 
MWh Megawatthour of electricity

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Forward-Looking Statements
Certain information presented herein includes forward-looking statements“forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995.1995 with respect to the financial condition, results of operations and business of Detroit Edison. Forward-looking statements involve certainare subject to numerous assumptions, risks and uncertainties that may cause actual future results to differbe materially different from those presently contemplated, projected, estimated or budgeted. Many factors may impact forward-looking statements including, but not limited to, the following:
the length and severity of ongoing economic decline resulting in lower demand, customer conservation and increased thefts of electricity;
changes in the economic and financial viability of our customers, suppliers, and trading counterparties, and the continued ability of such parties to perform their obligations to the Company;
economic climate and population growth or decline in the geographic areas where we do business;
high levels of uncollectible accounts receivable;
 access to capital markets and capital market conditions and the results of other financing efforts which can be affected by credit agency ratings;
 
 instability in capital markets which could impact availability of short and long-term financing;
 
potential for continued loss on cash equivalents and investments, including nuclear decommissioning and benefit plan assets;
the length and severity of ongoing economic decline;
 the timing and extent of changes in interest rates;
 
 the level of borrowings;
 
potential for losses on investments, including nuclear decommissioning and benefit plan assets and the related increases in future expense and contributions;
 the availability, cost, coverage and termspotential for increased costs or delays in completion of insurance and stability of insurance providers;significant construction projects;
 
changes in the economic and financial viability of our customers, suppliers, and trading counterparties, and the continued ability of such parties to perform their obligations to Detroit Edison;
 the effects of weather and other natural phenomena on operations and sales to customers, and purchases from suppliers;
 
economic climate and population growth or decline in the geographic areas where we do business;
 environmental issues, laws, regulations, and the increasing costs of remediation and compliance, including actual and potential new federal and state requirements that include or could include carbon and more stringent mercury emission controls, a renewable portfolio standard, and energy efficiency mandates;mandates, carbon tax or cap and trade structure and ash landfill regulations;
 
 nuclear regulations and operations associated with nuclear facilities;
 
 impact of electric utility restructuring in Michigan, including legislative amendments and Customer Choice programs;
 
 employee relations and the impact of collective bargaining agreements;
 
 unplanned outages;
 
 changes in the cost and availability of coal and other raw materials and purchased power;
 
cost reduction efforts and the maximization of plant and distribution system performance;
 the effects of competition;

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 impact of regulation by the FERC, MPSC, NRC and other applicable governmental proceedings and regulations, including any associated impact on rate structures;
 
 changes in and application of federal, state and local tax laws and their interpretations, including the Internal Revenue Code, regulations, rulings, court proceedings and audits;
 
 the ability to recover costs through rate increases;amount and timing of cost recovery allowed as a result of regulatory proceedings, related appeals or new legislation;
 
 the cost of protecting assets against, or damage due to, terrorism;terrorism or cyber attacks;
 
the availability, cost, coverage and terms of insurance and stability of insurance providers;
 changes in and application of accounting standards and financial reporting regulations;
 
 changes in federal or state laws and their interpretation with respect to regulation, energy policy and other business issues; and
 
 amounts of uncollectible accounts receivable;binding arbitration, litigation and related appeals.

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binding arbitration, litigation and related appeals.
New factors emerge from time to time. We cannot predict what factors may arise or how such factors may cause our results to differ materially from those contained in any forward-looking statement. Any forward-looking statements refer only as of the date on which such statements are made. We undertake no obligation to update any forward-looking statement to reflect events or circumstances after the date on which such statement is made or to reflect the occurrence of unanticipated events.

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Part I
Items 1. and 2. Business and Properties
General
Detroit Edison is a Michigan corporation organized in 1903 and is a wholly ownedwholly-owned subsidiary of DTE Energy. Detroit Edison is a public utility subject to regulation by the MPSC and FERC. Detroit Edison is engaged in the generation, purchase, distribution and sale of electricity to approximately 2.22.1 million customers in a 7,600 square mile area in southeastern Michigan.
References in this report to “we,” “us,” “our” or “Company” are to Detroit Edison.
Our generating plants are regulated by numerous federal and state governmental agencies, including, but not limited to, the MPSC, the FERC, the NRC, the EPA and the MDEQ. Electricity is generated from our several fossil plants, a hydroelectric pumped storage plant and a nuclear plant, and is purchased from electricity generators, suppliers and wholesalers.
The electricity we produce and purchase is sold to fourthree major classes of customers: residential, commercial industrial, and wholesale,industrial, principally throughout southeastern Michigan.
            ��           
Revenue by Service              
(in Millions) 2008 2007 2006  2009 2008 2007 
Residential $1,726 $1,739 $1,671  $1,820 $1,726 $1,739 
Commercial 1,753 1,723 1,603  1,702 1,753 1,723 
Industrial 894 854 835  730 894 854 
Wholesale 119 125 109 
Other 170 259 350  299 289 384 
              
Subtotal 4,662 4,700 4,568  4,551 4,662 4,700 
Interconnection sales (1) 212 200 169  163 212 200 
              
Total Revenue $4,874 $4,900 $4,737  $4,714 $4,874 $4,900 
              
 
(1) Represents power that is not distributed by Detroit Edison.
Weather, economic factors, competition and electricity prices affect sales levels to customers. Our peak load and highest total system sales generally occur during the third quarter of the year, driven by air conditioning and other cooling-related demands. We occasionally experience various types of storms that damage our electric distribution infrastructure resulting in power outages. Restoration and other costs associated with storm-related power outages can negatively impact earnings. In the December 23, 2008 MPSC rate order for Detroit Edison, a tracking mechanism was approved that provides for an annual reconciliation for restoration costs (storm and non-storm) using a base expense level of $110 million per year. Our operations are not dependent upon a limited number of customers, and the loss of any one or a few customers would not have a material adverse effect on Detroit Edison.
Fuel Supply and Purchased Power
Our power is generated from a variety of fuels and is supplemented with purchased power. We expect to have an adequate supply of fuel and purchased power to meet our obligation to serve customers. Our generating capability is heavily dependent upon the availability of coal. Coal is purchased from various sources in different geographic areas under agreements that vary in both pricing and terms. We expect to obtain the majority of our coal requirements

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through long-term contracts, with the balance to be obtained through short-term agreements and spot purchases. We have eightnine long-term and twonine short-term contracts for a total purchase of approximately 2628 million tons of low-sulfur western coal to be delivered in 2009 and 2010.from 2010 through 2012. We also have eightnine long-term and two short-term contracts for the purchase of approximately 69 million tons of Appalachian coal to be delivered from 20092010 through 2011.2012. All of these contracts have fixed prices. We have approximately 84%87% of our 20092010 expected coal requirements under contract. Given the geographic diversity of supply, we believe we can meet our expected generation requirements. We lease a fleet of rail cars and have long-term transportation contracts with companies to provide rail and vessel services for delivery of purchased coal to our generating facilities.
Detroit Edison participates in the energy market through MISO. We offer our generation in the market on a day-ahead and real-time basis and bid for power in the market to serve our load. We are a net purchaser of power that supplements our generation capability to meet customer demand during peak cycles.

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Properties
Detroit Edison owns generating plants and facilities that are located in the State of Michigan. Substantially all of our property is subject to the lien of a mortgage.
Generating plants owned and in service as of December 31, 20082009 are as follows:
                              
 Location by Summer Net   Location by Summer Net  
 Michigan Rated Capability (1) (2)   Michigan Rated Capability (1)  
Plant Name County (MW)(%) Year in Service County (MW) (%) Year in Service
Fossil-fueled Steam-Electric               
Belle River (3)(2) St. Clair 1,026 9.2 1984 and 1985 St. Clair  1,034   9.3  1984 and 1985
Conners Creek Wayne 230 2.1 1951 Wayne  230   2.1  1951
Greenwood St. Clair 785 7.1 1979 St. Clair  785   7.1  1979
Harbor Beach Huron 103 0.9 1968 Huron  103   0.9  1968
Marysville St. Clair 84 0.8 1943 and 1947 St. Clair  84   0.8  1943 and 1947
Monroe (4)(3) Monroe 3,115 28.0 1971, 1973 and 1974 Monroe  3,090   27.9  1971, 1973 and 1974
River Rouge Wayne 523 4.7 1957 and 1958 Wayne  523   4.7  1957 and 1958
St. Clair(4) St. Clair 1,368 12.3 1953, 1954, 1959, 1961 and 1969 St. Clair  1,365   12.3  1953, 1954, 1959, 1961 and 1969
Trenton Channel Wayne 730 6.6 1949 and 1968 Wayne  730   6.6  1949 and 1968
                 
 7,964 71.7       7,944   71.7   
Oil or Gas-fueled Peaking Units Various 1,101 9.9 1966-1971, 1981 and 1999 Various  1,101   10.0  1966-1971, 1981 and 1999
Nuclear-fueled Steam-Electric Fermi 2 (5) Monroe 1,122 10.1 1988 Monroe  1,102   10.0  1988
Hydroelectric Pumped Storage Ludington(6) Mason 917 8.3 1973 Mason  917   8.3  1973
                 
 11,104 100.0       11,064   100.0   
                 
 
(1) Summer net rated capabilities of generating plants in service are based on periodic load tests and are changed depending on operating experience, the physical condition of units, environmental control limitations and customer requirements for steam, which otherwise would be used for electric generation.
 
(2) Excludes one oil-fueled unit, St. Clair Unit No. 5 (250 MW) in cold standby status.
(3)The Belle River capability represents Detroit Edison’s entitlement to 81.39% of the capacity and energy of the plant. See Note 67 of the Notes to the Consolidated Financial Statements in Item 8 of this Report.
 
(4)(3) The Monroe Power Plantpower plant provided 38% of Detroit Edison’s total 20082009 power plant generation.
(4)Excludes one oil-fueled unit (250 MW) in cold standby status.
 
(5) Fermi 2 has a design electrical rating (net) of 1,150 MW.
 
(6) Represents Detroit Edison’s 49% interest in Ludington with a total capability of 1,872 MW. See Note 67 of the Notes to the Consolidated Financial Statements in Item 8 of this Report.
Detroit Edison owns and operates 678677 distribution substations with a capacity of approximately 33,436,00033,347,000 kilovolt-amperes (kVA) and approximately 419,600423,600 line transformers with a capacity of approximately 21,634,00021,883,000 kVA.

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Circuit miles of electric distribution lines owned and in service as of December 31, 2008:2009:
                
Electric Distribution Circuit Miles
 Circuit Miles 
Operating Voltage-Kilovolts (kV) Overhead Underground Overhead Underground 
4.8 kV to 13.2 kV 28,114 13,875  28,243 13,884 
24 kV 102 690  177 681 
40 kV 2,324 335  2,317 363 
120 kV 72 13  54 13 
          
 30,612 14,913  30,791 14,941 
          
There are numerous interconnections that allow the interchange of electricity between Detroit Edison and electricity providers external to our service area. These interconnections are generally owned and operated by ITC Transmission and connect to neighboring energy companies.
Regulation
Detroit Edison’s business is subject to the regulatory jurisdiction of various agencies, including, but not limited to, the MPSC, the FERC and the NRC. The MPSC issues orders pertaining to rates, recovery of certain costs, including the costs of generating facilities and regulatory assets, conditions of service, accounting and operating-related matters. Detroit Edison’s MPSC-approved rates charged to customers have historically been designed to allow for the recovery of costs, plus an authorized rate of return on our investments. The FERC regulates Detroit Edison with respect to financing authorization and wholesale electric activities. The NRC has regulatory jurisdiction over all phases of the operation, construction, licensing and decommissioning of Detroit Edison’s nuclear plant operations. We are subject to the requirements of other regulatory agencies with respect to safety, the environment and health.
See Note 4, 8, 10 and 16 of the Notes to Consolidated Financial Statements in Item 8 of this Report.
Energy Assistance Programs
Energy assistance programs, funded by the federal government and the State of Michigan, remain critical to Detroit Edison’s ability to control its uncollectible accounts receivable and collections expenses. Detroit Edison’s uncollectible accounts receivable expense is directly affected by the level of government funded assistance its qualifying customers receive. We work continuously with the State of Michigan and others to determine whether the share of funding allocated to our customers is representative of the number of low-income individuals in our service territory.
Strategy and Competition
We strive to be the preferred supplier of electrical generation in southeast Michigan. We can accomplish this goal by working with our customers, communities and regulatory agencies to be a reliable, low-cost supplier of electricity. To ensure generation reliability, we continue to invest in our generating plants, which will improve both plant availability and operating efficiencies. We also are making capital investments in areas that have a positive impact on reliability and environmental compliance with the goal of high customer satisfaction.
Our distribution operations focus on improving reliability, restoration time and the quality of customer service. We seek to lower our operating costs by improving operating efficiencies. Revenues from year to year will vary due to weather conditions, economic factors, regulatory events and other risk factors as discussed in the “Risk Factors” in Item 1A1A. of this Report. We expect to minimize the impacts of declines in average customer usage through regulatory mechanisms which will partially decouple our revenue levels from sales volumes.
The electric Customer Choice program in Michigan allows all of our electric customers to purchase their electricity from alternative electric suppliers of generation services.services, subject to limits. Customers choosing to purchase power from alternative electric suppliers represented approximately 3% of retail sales in 2009 and 2008, 4% in 2007 and 6%4% of such sales in 2006.2007. Customers participating in the electric Customer Choice program consist primarily of industrial and commercial customers whose MPSC-authorized full service rates exceed their cost of service. MPSC rate orders and

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recent energy legislation enacted by the State of Michigan are phasing out the pricing disparity over five years and have placed a 10 percent10% cap on the total potential Customer Choice related migration, mitigating some of the unfavorable effects of electric Customer Choice on our financial performance. Recent higher wholesaleWe expect that in 2010 customers choosing to purchase power from alternative electric prices have also

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resulted in many former electric Customer Choice customers migrating back to Detroit Edison for electric generation service.suppliers will represent approximately 10% of retail sales. When market conditions are favorable, we sell power into the wholesale market, in order to lower costs to full-service customers.
Competition in the regulated electric distribution business is primarily from the on-site generation of industrial customers and from distributed generation applications by industrial and commercial customers. We do not expect significant competition for distribution to any group of customers in the near term. In 2008, the Michigan legislature passed a comprehensive reform package that requires Michigan utilities to serve ten percent of their retail sales from renewable energy sources by 2015. In December 2008, Detroit Edison issued a request for proposal to purchase Michigan-based renewable energy credits.
ENVIRONMENTAL MATTERS
We are subject to extensive environmental regulation. Additional costs may result as the effects of various substances on the environment are studied and governmental regulations are developed and implemented. Actual costs to comply could vary substantially. We expect to continue recovering environmental costs through rates charged to our customers. The following table summarizes our estimated significant future environmental expenditures based upon current regulations:
        
(in Millions)  
Air $2,800  $2,200 
Water 55  55 
MGP sites 3  5 
Other sites 9  21 
      
Estimated total future expenditures through 2018 $2,867 
Estimated total future expenditures through 2019 $2,281 
      
Estimated 2010 expenditures $82 
    
Estimated 2009 expenditures $100 
Estimated 2011 expenditures $253 
      
Air— Detroit Edison is subject to the EPA ozone transport and acid rain regulations that limit power plant emissions of sulfur dioxide and nitrogen oxides. Since 2005, EPA and the State of Michigan have issued additional emission reduction regulations relating to ozone, fine particulate, regional haze and mercury air pollution. The new rules will lead to additional controls on fossil-fueled power plants to reduce nitrogen oxide, sulfur dioxide and mercury emissions. Further, additional rulemakings are expected over the next few years which could require additional controls for sulfur dioxide, nitrogen oxides and hazardous air pollutants (HAPs). It is not possible to quantify the impact of those expected rulemakings at this time.
Water—In response to an EPA regulation, Detroit Edison is required to examine alternatives for reducing the environmental impacts of the cooling water intake structures at several of its facilities. Based on the results of completed studies to be conducted over the next several years,and expected future studies, Detroit Edison may be required to perform some mitigation activities, including the possible installation of additional control technologies to reduce the environmental impact of the intake structures. However, a January 2007 circuit court decision remanded back to the EPA several provisions of the federal regulation, resulting in a delay in complying with the regulation. In 2008, the U.S. Supreme Court agreed to review the remanded cost-benefit analysis provision of the rule. A decision is expectedrule and in the first quarterApril 2009 upheld EPA’s use of 2009.this provision in determining best available technology for reducing environmental impacts. Concurrently, the EPA continues to develop a revised rule, a draft of which is expected to be published in early 2009.by summer 2010. The EPA has also proposed an information collection request to begin a review of steam electric effluent guidelines. It is not possible at this time to quantify the impacts of these developing requirements.
Manufactured Gas Plant (MGP) and Other Sites— Prior to the construction of major interstate natural gas pipelines, gas for heating and other uses was manufactured locally from processes involving coal, coke or oil. The facilities, which produced gas for heating and other uses, have been designated as MGP sites. Detroit Edison conducted remedial investigations at contaminated sites, includingowns, or previously owned, three former MGP sites. In addition to the MGP sites, we are also in the area surroundingprocess of cleaning up other sites where contamination is present as a result of historical and ongoing utility operations. These other sites include an engineered ash landfillstorage facility, electrical distribution substations and several underground and aboveground storage tank locations. As a result of these determinations, we have recorded liabilities related to these sites. Cleanup activities associated with these sites will be conducted over the next several years.
Global Climate Change —Proposals for voluntary initiatives and mandatory controls are being discussed in the United States to reduce greenhouse gases such as carbon dioxide, a by-product of burning fossil fuels. There may be legislative and or regulatory action to address the issue of changes in climate that may result from the build up of

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greenhouse gases, including carbon dioxide,Landfill— Detroit Edison owns and operates a permitted engineered ash storage facility at the Monroe Power Plant to dispose of fly ash from the coal fired power plant. Detroit Edison performed an engineering analysis in 2009 and identified the need for embankment side slope repairs and reconstruction.
The EPA has expressed its intentions to develop new federal regulations for coal ash under the authority of the Resources Conservation and Recovery Act (RCRA). A proposed regulation is expected in the atmosphere. We cannot predictfirst quarter of 2010. Among the impact any legislativeoptions EPA is currently considering, is a ruling that may designate coal ash as a “Hazardous Waste” as defined by RCRA. However, agencies and legislatures have urged EPA to regulate coal ash as a non-hazardous waste. If EPA were to designate coal ash as a hazardous waste, the agency could apply some, or all, of the disposal and reuse standards that have been applied to other existing hazardous wastes. Some of the regulatory action mayactions currently being contemplated could have a material adverse impact on our operations and financial position.position and the rates we charge our customers.
Global Climate Change— Climate regulation and/or legislation is being proposed and discussed within the U.S. Congress and the EPA. On June 26, 2009, the U.S. House of Representatives passed the American Clean Energy and Security Act (ACESA). The ACESA includes a cap and trade program that would start in 2012 and provides for costs to emit greenhouse gases. Despite action by the Senate Environmental and Public Works Committee to pass a similar but more stringent bill in October 2009, full Senate action on a climate bill is not expected before the spring of 2010. Meanwhile, the EPA is beginning to implement regulatory actions under the Clean Air Act to address emission of greenhouse gases. Pending or future legislation or other regulatory actions could have a material impact on our operations and financial position and the rates we charge our customers. Impacts include expenditures for environmental equipment beyond what is currently planned, financing costs related to additional capital expenditures and the purchase of emission allowances from market sources. We would seek to recover these incremental costs through increased rates charged to our utility customers. Increased costs for energy produced from traditional sources could also increase the economic viability of energy produced from renewable and/or nuclear sources and energy efficiency initiatives and the development of market-based trading of carbon offsets providing business opportunities for our utility and non-utility segments. It is not possible to quantify these impacts on Detroit Edison or its customers at this time.
See Notes 410 and 1517 of the Notes to Consolidated Financial Statements in Item 8 of this Report.
EMPLOYEES
We had 4,6824,864 employees as of December 31, 2008,2009, of which 1,8972,782 were represented by unions. The majority of our union employees are under contracts that expire in June 2010 and August 2012.

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Item 1A. Risk Factors
There are various risks associated with the operations of Detroit Edison. To provide a framework to understand ourthe operating environment, we are providing a brief explanation of the more significant risks associated with our business. Although we have tried to identify and discuss key risk factors, others could emerge in the future. Each of the following risks could affect our performance.
Regional and national economic conditions can have an unfavorable impact on us.Our business follows the economic cycles of the customers we serve. We provide services to the domestic automotive industryand steel industries which is underhave undergone considerable financial distress, exacerbating the decline in regional economic conditions. Should national or regional economic conditions further decline, reduced volumes of electricity and collections of accounts receivable will result in decreased earnings and cash flow.
Adverse changes in our credit ratings may negatively affect us.Regional and national economic conditions,conditions, increased scrutiny of the energy industry and regulatory changes, as well as changes in our economic performance, could result in credit agencies reexamining our credit rating. While credit ratings reflect the opinions of the credit agencies issuing such ratings and may not necessarily reflect actual performance, a downgrade in our credit rating below investment grade could restrict or discontinue our ability to access capital markets and could result in an increase in our borrowing costs, a reduced level of capital expenditures and could impact future earnings and cash flows. In addition, a reduction in credit rating may require us to post collateral related to various physical or financially settled contracts for the purchase of energy-related commodities, products and services, which wouldcould impact our liquidity.
Our ability to access capital markets at attractive interest rates is important.Our ability to access capital markets is important to operate our businesses. In recent months, the global financial markets have experienced unprecedented instability. This systemic marketplace distress is impacting our access to capital and cost of capital. This recentpast, turmoil in credit markets has constrained, and may again in the future constrain, our ability as well as the ability of our subsidiaries to issue new debt, including commercial paper, and refinance existing debt. We cannot predict the length of time the current worldwide credit situation will continue or the impact on our future operations and our ability to issue debt at reasonable interest rates. In addition, the level of borrowing by other energy companies and the market as a whole could limit our access to capital markets. We have substantial amounts of short-terma five-year credit facilitiesfacility that expireexpires in 2009.2010. We intend to seek to renew the facilitiesfacility on or before the expiration dates.date. However, we cannot predict the outcome of these efforts, which could result in a decrease in amounts available and/or an increase in our borrowing costs and negatively impact our financial performance.
Poor investment performance of pension and other postretirement benefit plan holdings and other factors impacting benefit plan costs could unfavorably impact our liquidity and results of operations.OurDetroit Edison participates in various plans that provide pension and other postretirement benefits for DTE Energy and its affiliates.Our costs of providing non-contributory defined benefit pension plans and other postretirement benefit plans are dependent upon a number of factors, such as the rates of return on plan assets, the level of interest rates used to measure the required minimum funding levels of the plans, future government regulation, and our required or voluntary contributions made to the plans. The performance of the capitaldebt and equity markets affects the value of assets that are held in trust to satisfy future obligations under our plans. We have significant benefit obligations and hold significant assets in trust to satisfy these obligations. These assets are subject to market fluctuations and will yield uncertain returns, which may fall below our projected return rates. A decline in the market value of the pension and postretirement benefit plan assets as was experienced in 2008, will increase the funding requirements under our pension and postretirement benefit plans if the actual asset returns do not recover these declines in the foreseeable future. Additionally, our pension and postretirement benefit plan liabilities are sensitive to changes in interest rates. As interest rates

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decrease, the liabilities increase, potentially increasing benefit expense and funding requirements. Also, if future increases in pension and postretirement benefit costs as a result of reduced plan assets are not recoverable from ourDetroit Edison customers, the results of operations and financial position of our company could be negatively affected. Without sustained growth in the plan investments over time to increase the value of our plan assets, we could be required to fund our plans with significant amounts of cash. Such cash funding obligations could have a material impact on our cash flows, financial position, or results of operations.
We are exposed to credit risk of counterparties with whom we do business.Adverse economic conditions affecting, or financial difficulties of, counterparties with whom we do business could impair the ability of these counterparties to pay for our services or fulfill their contractual obligations, or cause them to delay such payments or obligations. We depend on these counterparties to remit payments on a timely basis. Any delay or default in payment could adversely affect our cash flows, financial position, or results of operations.

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We may not be fully covered by insurance.We have a comprehensive insurance program in place to provide coverage for various types of risks, catastrophic damage as a result of acts of God, terrorism, war or a combination of other significant unforeseen events that could impact our operations. Economic losses might not be covered in full by insurance or our insurers may be unable to meet contractual obligations.
We are subject to rate regulation. Our electric rates are set by the MPSC and the FERC and cannot be increased without regulatory authorization. We may be negatively impacted by new regulations or interpretations by the MPSC, the FERC or other regulatory bodies. Our ability to recover costs may be impacted by the time lag between the incurrence of costs and the recovery of the costs in customers’ rates. Our regulators also may decide to disallow recovery of certain costs in customers’ rates if they determine that those costs do not meet the standards for recovery under our governing laws and regulations. The State of Michigan will elect a new governor and legislature in 2010 and we cannot predict the outcome of that election. We cannot predict whether election results or changes in political conditions will affect the regulations or interpretations affecting Detroit Edison. New legislation, regulations or interpretations could change how our business operates, impact our ability to recover costs through rate increases or require us to incur additional expenses.
We may be required to refund amounts we collect under self-implemented rates.Michigan law allows our utilities to self-implement rate changes six months after a rate filing, subject to certain limitations. However, if the final rate case order provides for lower rates than we have self-implemented, we must refund the difference, with interest. We have self-implemented rates in the past and have been ordered to make refunds to customers. Our financial performance may be negatively affected if the MPSC sets lower rates in future rate cases than those we have self-implemented, thereby requiring us to issue refunds. We cannot predict what rates an MPSC order will adopt in future rate cases.
Michigan’s electric Customer Choice program could negatively impact our financial performance.The electric Customer Choice program, as originally contemplated in Michigan, anticipated an eventual transition to a totally deregulated and competitive environment where customers would be charged market-based rates for their electricity. The State of Michigan currently experiences a hybrid market, where the MPSC continues to regulate electric rates for our customers, while alternative electric suppliers charge market-based rates. In addition, such regulated electric rates for certain groups of our customers exceed the cost of service to those customers. Due to distorted pricing mechanisms during the initial implementation period of electric Customer Choice, many commercial customers chose alternative electric suppliers. MPSC rate orders and recent energy legislation enacted by the State of Michigan are phasing out the pricing disparity over five years and have placed a cap on the total potential Customer Choice related migration. Recent higher wholesale electric prices have also resulted in some former electric Customer Choice customers migrating back to Detroit Edison for electric generation service. However, even with the electric Customer Choice-related relief received in recent Detroit Edison rate orders and the legislated 10 percent cap on participation in the electric Customer Choice program, there continues to be financial risk associated with the electric Customer Choice program. Electric Customer Choice migration is sensitive to market price and bundled electric service price increases.
Weather significantly affects operations.Deviations from normal hot and cold weather conditions affect our earnings and cash flow. Mild temperatures can result in decreased utilization of our assets, lowering income and cash flow. Ice storms, tornadoes, or high winds can damage the electric distribution system infrastructure and require us to perform emergency repairs and incur material unplanned expenses. The expenses of storm restoration efforts may not be fully recoverable through the regulatory process.
Operation of a nuclear facility subjects us to risk.Ownership of an operating nuclear generating plant subjects us to significant additional risks. These risks include, among others, plant security, environmental regulation and remediation, and operational factors that can significantly impact the performance and cost of operating a nuclear facility. While we maintain insurance for various nuclear-related risks, there can be no assurances that such insurance will be sufficient to cover our costs in the event of an accident or business interruption at our nuclear generating plant, which may affect our financial performance.
Construction and capital improvements to our power facilities subject us to risk.We are managing ongoing and planning future significant construction and capital improvement projects at multiple power generation and distribution facilities. Many factors that could cause delay or increased prices for these complex projects are beyond our control, including the cost of materials and labor, subcontractor performance, timing and issuance of necessary permits, construction disputes and weather conditions. Failure to complete these projects on schedule and on budget for any reason could adversely affect our financial performance and operations at the affected facilities.
The supply andand/or price of fuel and otherenergy commodities andand/or related transportation costsservice may impact our financial results.We are dependent on coal for much of our electrical generating capacity. Price fluctuations, fuel supply

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disruptions and increases in transportation costs could have a negative impact on the amounts we charge our ability to profitably generate customers for

10


electricity. We have hedging strategies and regulatory recovery mechanisms in place to mitigate negative fluctuations in commodity supply prices, but there can be no assurances that our financial performance will not be negatively impacted by price fluctuations.
The supply and/or price other industrial raw and finished inputs and/or related services may impact our financial results.We are dependent on supplies of certain commodities, such as copper and limestone, among others, and industrial materials and services in order to maintain day-to-day operations and maintenance of our facilities. Price fluctuations or supply interruptions for these commodities and other items could have a negative impact on the amounts we charge our customers for our products.
Unplanned power plant outages may be costly.Unforeseen maintenance may be required to safely produce electricity or comply with environmental regulations. As a result of unforeseen maintenance, we may be required to make spot market purchases of electricity that exceed our costs of generation. Our financial performance may be negatively affected if we are unable to recover such increased costs.
Environmental laws and liability may be costly.We are subject to numerous environmental regulations. These regulations govern air emissions, water quality, wastewater discharge and disposal of solid and hazardous waste. Compliance with these regulations can significantly increase capital spending, operating expenses and plant down times. These laws and regulations require us to seek a variety of environmental licenses, permits, inspections and other regulatory approvals. We could be required to install expensive pollution control measures or limit or cease activities based on these regulations. Additionally, we may become a responsible party for environmental cleanup at sites identified by a regulatory body. We cannot predict with certainty the amount and timing of future expenditures related to environmental matters because of the difficulty of estimating clean up costs. There is also uncertainty in quantifying liabilities under environmental laws that impose joint and several liability on potentially responsible parties.
We may also incur liabilities as a result of potential future requirements to address climate change issues. Proposals for voluntary initiatives and mandatory controls are being discussed both in the United States and worldwide to reduce greenhouse gases such as carbon dioxide, a by-product of burning fossil fuels. If increased regulation of greenhouse gas emissions are implemented, the operations of our fossil-fuel generation assets may be significantly impacted.
Since there can be no assurances that environmental costs may be recovered through the regulatory process, our financial performance may be negatively impacted as a result of environmental matters.
TerrorismRenewable portfolio standards and energy efficiency programs may affect our business.We are subject to Michigan and potential future federal legislation and regulation requiring us to secure sources of renewable energy. Under the current Michigan legislation we will be required in the future to provide a specified percentage of our power from Michigan renewable energy sources. We are developing a strategy for complying with the existing state legislation, but we do not know what requirements may be added by federal legislation. We are actively engaged in developing renewable energy projects and identifying third party projects in which we can invest. We cannot predict the financial impact or costs associated with these future projects.
We are also required by Michigan legislation to implement energy efficiency measures and provide energy efficiency customer awareness and education programs. These requirements necessitate expenditures and implementation of these programs creates the risk of reducing our revenues as customers decrease their energy usage. We do not know how these programs will impact our business and future operating results.
Threats of terrorism or cyber attacks could affect our businessbusiness.. DamageWe may be threatened by problems such as computer viruses or terrorism that may disrupt our operations and could harm our operating results. Our industry requires the continued operation of sophisticated information technology systems and network infrastructure. Despite our implementation of security measures, all of our technology systems are vulnerable to downstream infrastructuredisability or failures due to hacking, viruses, acts of war or terrorism and other causes. If our own assets by terrorism would impactinformation technology systems were to fail and we were unable to recover in a timely way, we might be unable to fulfill critical business functions, which could have a material adverse effect on our operations.business, operating results, and financial condition.
In addition, our generation plants and electrical distribution facilities in particular may be targets of terrorist activities that could disrupt our ability to produce or distribute some portion of our energy products. We have

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increased security as a result of past events and furtherwe may be required by our regulators or by the future terrorist threat environment to make investments in security increases are possible.that we cannot currently predict.
We may not be fully covered by insurance.We have a comprehensive insurance program in place to provide coverage for various types of risks, including catastrophic damage as a result of acts of God, terrorism or a combination of other significant unforeseen events that could impact our operations. Economic losses might not be covered in full by insurance or our insurers may be unable to meet contractual obligations.
Failure to maintain the security of personally identifiable information could adversely affect us. In connection with our business we collect and retain personally identifiable information of our customers and employees. Our customers and employees expect that we will adequately protect their personal information, and the United States regulatory environment surrounding information security and privacy is increasingly demanding. A significant theft, loss or fraudulent use of customer, employee or Detroit Edison data by cybercrime or otherwise could adversely impact our reputation and could result in significant costs, fines and litigation.
Benefits of continuous improvement initiatives could be less than we expect.We have a continuous improvement program that is expected to result in significant cost savings. Actual results achieved through this program could be less than our expectations.
A work interruption may adversely affect us.Unions represent approximately 1,9002,800 of our employees. A union choosing to strike would have an impact on our business. A contract with our largest union expires in June 2010. In addition, our contracts with unions representing two small groups of employees expired on December 31, 2009 and another union is currently negotiating its first contract. We cannot predict the outcome of any of these contract negotiations, some of which have not yet commenced. We are unable to predict the effect a work stoppage would have on our costs of operation and financial performance.
Failure to retain and attract key executive officers and other skilled professional and technical employees could have an adverse effect on our operations.Our business is dependent on our ability to recruit, retain, and motivate employees. Competition for skilled employees in some areas is high and the inability to retain and attract these employees could adversely affect our business and future operating results.
Item 1B. Unresolved Staff Comments
None.
Item 3. Legal Proceedings
We are involved in certain legal, regulatory, administrative and environmental proceedings before various courts, arbitration panels and governmental agencies concerning matters arising in the ordinary course of business. These proceedings include certain contract disputes, environmental reviews and investigations, audits, inquiries from various regulators, and pending judicial matters. We cannot predict the final disposition of such proceedings. We

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regularly review legal matters and record provisions for claims that are considered probable of loss. The resolution of pending proceedings is not expected to have a material effect on our operations or financial statements in the period they are resolved.
We are awareIn July 2009, DTE Energy received a Notice of attempts by an environmental organization known asViolation/Finding of Violation (NOV/FOV) from the Waterkeeper Alliance to initiate a criminal action in Canada against the Company for alleged violationsEPA alleging, among other things, that five Detroit Edison power plants violated New Source Performance standards, Prevention of the Canadian Fisheries Act. FinesSignificant Deterioration requirements, and Title V operating permit requirements under the relevant Canadian statute could potentially be significant. To date,Clean Air Act. We believe that the Company has not been properly served process in this matter. Nevertheless, as a result of a decisionplants identified by a Canadian court, a trial schedule has been initiated. The Company believes the claims of the Waterkeeper Alliance in this matter are without legal merit and has appealed the court’s decision. We are not able to predict or assessEPA have complied with applicable regulations. Depending upon the outcome of our discussions with the EPA regarding the NOV/FOV, the EPA could bring legal action against Detroit Edison. We could also be required to install additional pollution control equipment at some or all of the power plants in question, engage in Supplemental Environmental Programs, and/or pay fines. We cannot predict the financial impact or outcome of this action at this time.matter, or the timing of its resolution.

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For additional discussion on legal matters, see the following Notes to Consolidated Financial Statements:
   
Note Title
 
 4
10 Regulatory Matters
 5Nuclear Operations
1416 Commitments and Contingencies

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Item 4. Submission of Matters to a Vote of Security Holders
Omitted per General Instruction I (2) (c) of Form 10-K for wholly owned subsidiaries (reduced disclosure format).
Part II
Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
All of the 138,632,324 issued and outstanding shares of common stock of Detroit Edison, par value $10 per share, are owned by DTE Energy, and constitute 100% of the voting securities of Detroit Edison. Therefore, no market exists for our common stock.
We paid cash dividends on our common stock of $305 million in 2009, 2008, 2007, and 2006.2007.
Item 6. Selected Financial Data
Omitted per General Instruction I (2) (a) of Form 10-K for wholly owned subsidiaries (reduced disclosure format).

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Item 7. Management’s Narrative Analysis of Results of Operations
Item 7.Management’s Narrative Analysis of Results of Operations
The Management’s Narrative Analysis of Results of Operations discussion for Detroit Edison is presented in accordance with General Instruction I (2) (a) of Form 10-K for wholly ownedwholly-owned subsidiaries (reduced disclosure format).
Factors impacting income:Net income increased $14 million in 2008 and decreased $4 million in 2007. The 2008 increase was primarily due to lower expenses for operation and maintenance, depreciation and amortization, and taxes other than income, partly offset by lower gross margins and higher income tax expense. The 2007 decrease reflects higher operation and maintenance expenses, partially offset by higher gross margins and lower depreciation and amortization expenses.
        
Increase (Decrease) in Income Statement Components Compared to Prior Year     
(in Millions) 2008 2007 
Increase (Decrease) in Income Statement Components Compared to Prior Year
(in Millions)
 2009 2008 
     
Operating revenues $(26) $163  $(160) $(26)
Fuel and purchased power 92 120   (287) 92 
          
Gross margin  (118) 43  127  (118)
Operation and maintenance  (100) 85   (45)  (100)
Depreciation and amortization  (21)  (48) 101  (21)
Taxes other than income  (45) 25   (27)  (45)
Asset (gains) losses and reserves, net  (9) 14   (1)  (9)
          
Operating income 57  (33) 99 57 
Other (income) and deductions 6  (17) 12 6 
Income tax provision 37  (13) 42 37 
          
Net income before accounting change 14  (3)
Cumulative effect of accounting change   (1)
     
Net Income $14 $(4) $45 $14 
          
Gross marginincreased $127 million and decreased $118 million during 2009 and 2008, and increased $43 million in 2007. The 2008 decrease was due to the unfavorable impacts of weather and service territory performance and the absence of the favorable impact of a May 2007 MPSC order related to the 2005 PSCR reconciliation. These decreases were partially offset by higher rates attributable to the April 2008 expiration of a rate reduction related to the MPSC show cause proceeding and higher margins due to customers returning from the electric Customer Choice program. The increase in 2007 was attributed to higher margins due to returning sales from electric Customer Choice, the favorable impact of a May 2007 MPSC order related to the 2005 PSCR reconciliation and weather related impacts, partially offset by lower rates resulting primarily from the August 2006 settlement in the MPSC show cause proceeding and the unfavorable impact of a September 2006 MPSC order related to the 2004 PSCR reconciliation. Revenues include a component for the cost of power sold that is recoverable through the PSCR mechanism.
respectively. The following table displays changes in various gross margin components relative to the comparable prior period:
         
Increase (Decrease) in Gross Margin Components Compared to Prior Year      
(in Millions) 2008  2007 
Weather-related margin impacts $(37) $31 
Return of customers from electric Customer Choice  35   43 
Service territory economic performance  (100)  28 
Refundable pension cost  (30)   
April 2008 expiration of show cause rate decrease  46    
Impact of 2006 MPSC show cause order     (64)
Impact of 2005 MPSC PSCR reconciliation order  (38)  38 
Impact of 2004 MPSC PSCR reconciliation order     (39)
Other, net  6   6 
       
Increase (decrease) in gross margin $(118) $43 
       
         
Increase (Decrease) in Gross Margin Components Compared to Prior Year
(in Millions)
 2009 2008
December 2008 rate order $80  $
Securitization bond and tax surcharge rate increase  62    
July 2009 rate self-implementation  93    
Energy Optimization and Renewable Energy surcharge  54    
April 2008 expiration of show cause rate decrease  25   46 
Weather  (66)  (37)
Reduction in customer demand and other  (121)  (127)
       
Increase (decrease) in gross margin $127  $(118)
       
             
(in Thousands of MWh) 2009  2008  2007 
          
Electric Sales
            
Residential  14,625   15,492   16,147 
Commercial  18,200   18,920   19,332 
Industrial  9,922   13,086   13,338 
Other  3,229   3,218   3,300 
          
   45,976   50,716   52,117 
Interconnection sales (1)  5,156   3,583   3,587 
          
Total Electric Sales  51,132   54,299   55,704 
          
             
Electric Deliveries
            
Retail and Wholesale  45,976   50,716   52,117 
Electric Customer Choice, including self generators (2)  1,477   1,457   2,239 
          
Total Electric Sales and Deliveries  47,453   52,173   54,356 
          
(1)Represents power that is not distributed by Detroit Edison
(2)Includes deliveries for self generators who have purchased power from alternative energy suppliers to supplement their power requirements

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Power Generated and Purchased                         
(in Thousands of MWh) 2008 2007 2006  2009 2008 2007 
Power Plant Generation  
Fossil 41,254  71% 42,359  72% 39,686  70% 40,595  74% 41,254  71% 42,359  72%
Nuclear 9,613 17 8,314 14 7,477 13  7,406 14 9,613 17 8,314 14 
                          
 50,867 88 50,673 86 47,163 83  48,001 88 50,867 88 50,673 86 
Purchased Power 6,877 12 8,422 14 9,861 17  6,495 12 6,877 12 8,422 14 
                          
System Output 57,744  100% 59,095  100% 57,024  100% 54,496  100% 57,744  100% 59,095  100%
Less Line Loss and Internal Use  (3,445)  (3,391)  (3,603)   (3,364)  (3,445)  (3,391) 
              
Net System Output 54,299 55,704 53,421  51,132 54,299 55,704 
              
Average Unit Cost ($/MWh)
  
Generation (1) $17.93 $15.83 $15.61  $18.20 $17.93 $15.83 
              
Purchased Power $69.50 $62.40 $53.71  $37.74 $69.50 $62.40 
              
Overall Average Unit Cost $24.07 $22.47 $22.20  $20.53 $24.07 $22.47 
              
 
(1) Represents fuel costs associated with power plants.
             
(in Thousands of MWh)
 2008 2007 2006
Electric Sales
            
Residential  15,492   16,147   15,769 
Commercial  18,920   19,332   17,948 
Industrial  13,086   13,338   13,235 
Wholesale  2,825   2,902   2,826 
Other  393   398   402 
             
   50,716   52,117   50,180 
Interconnection sales (1)  3,583   3,587   3,241 
             
Total Electric Sales  54,299   55,704   53,421 
             
             
Electric Deliveries
            
Retail and Wholesale  50,716   52,117   50,180 
Electric Customer Choice  1,382   1,690   2,694 
Electric Customer Choice-Self Generators (2)  75   549   909 
             
Total Electric Sales and Deliveries  52,173   54,356   53,783 
             
(1)Represents power that is not distributed by Detroit Edison.
(2)Represents deliveries for self generators who have purchased power from alternative energy suppliers to supplement their power requirements.
Operation and maintenanceexpense decreased $45 million in 2009 and decreased $100 million in 20082008. The decrease in 2009 was primarily due to $71 million from continuous improvement initiatives and increased $85other cost reductions resulting in lower contract labor and outside services expense, information technology and other staff expenses, $14 million in 2007.of lower employee benefit-related expenses, lower storm expenses of $12 million, $9 million of reduced uncollectible expenses and $6 million of reduced maintenance activities, partially offset by higher pension and health care costs of $54 million and $14 million of energy optimization and renewable energy expenses. The decrease in 2008 was due primarily to lower information systems implementation costs of $60 million, lower benefit expenseemployee benefit-related expenses of $45 million and lower corporate support expenses of $29 million from continuous improvement initiatives resulting in lower contract labor and outside services expense, information technology and other staff expenses, partially offset by higher uncollectible expenses of $22 million. The increase in 2007 is primarily due to higher information systems implementation costs of $30 million, higher storm expenses of $22 million, increased uncollectible expense of $22 million and higher corporate support expenses of $20 million.
Depreciation and amortizationexpense increased $101 million in 2009 due primarily to a higher depreciable base and increased amortization of regulatory assets and decreased $21 million in 2008 and $48 million in 2007. The 2008 decrease was due primarily to decreased amortization of regulatory assets. The 2007 decrease was due primarily to a 2006 net stranded cost write-off of $112 million related to the September 2006 MPSC order regarding stranded costs and a $13 million decrease in our asset retirement obligation at our Fermi 1 nuclear facility, partially offset by $58 million of increased amortization of regulatory assets and $13 million of higher depreciation expense due to increased levels of depreciable plant assets.
Taxes other than incomewere lower by $27 million due primarily to a $30 million reduction in property tax expense due to refunds received in settlement of appeals of assessments for prior years. Taxes decreased $45 million in 2008 due to the Michigan Single Business Tax (SBT) expense in 2007, which was replaced with the Michigan Business Tax (MBT) in 2008. The MBT is accounted for in the Income Tax provision.

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Asset (gains)losses and reserves, netdecreased $9 million in 2008 and increased $14 million in 2007 due to a 2007 $13 million reserve for a loan guaranty related to Detroit Edison’s former ownership of a steam heating business now owned by Thermal Ventures II, LP (Thermal).
Other (income) and deductionsexpense increased $6 million in 2008 and decreased $17 million in 2007. The 2008 increase is attributable to $15 million of investment losses in a trust utilized for retirement benefits and $3 million of miscellaneous expenses offset by higher capitalized interest of $12 million. The 2007 decrease is attributable to a $10 million contribution to the DTE Energy Foundation in 2006 that did not recur in 2007, $3 million of higher interest income and $17 million of increased miscellaneous utility related services, partially offset by $16 million of higher interest expense.
OutlookWe will move forward in our efforts to continue to improve the operating performance and cash flow of Detroit Edison. We continue to resolve outstanding regulatory issues by pursuing regulatory and/or legislative solutions. Many of these issues and problems have been addressed by the legislation signed by the Governor of Michigan in October 2008, discussed more fully in the Overview section. Looking forward, additional issues, such as volatility in prices for coal and other commodities, investment returns and changes in discount rate assumptions in benefit plans, health care costs and higher levels of capital spending, will result in us taking meaningful action to address our costs while continuing to provide quality customer service. We will continue to seek opportunities to improve productivity, remove waste and decrease our costs while improving customer satisfaction.
Unfavorable national and regional economic trends have resulted in reduced demand for electricity in our service territory and increasescontinued high levels in our uncollectible accounts receivable. The magnitude of these trends will be driven by the impacts of the challenges in the domestic automotive industry and the timing and level of recovery in the national and regional economies. The January 2010 MPSC rate order, provided for an uncollectible expense tracking mechanism and a revenue decoupling mechanism will assist in mitigating these impacts.
Due toTo address the economy and credit market conditions, in the near term, we are reviewing our capital expenditure commitments for potential reductions and deferrals and plan to adjust the timing of projects as appropriate. Long term, we will be required to invest an estimated $2.8 billion on emission controls through 2018. We intend to seek recovery of these investments in future rate cases.
Additionally, our service territory may require additional generation capacity. A new base-load generating plant has not been built within the State of Michigan in over 20 years. Should our economic and regulatory environment be conducive to such a significant capital expenditure, we may build, upgrade or co-invest in a base-load coal facility or a new nuclear plant.
On September 18, 2008, Detroit Edison submitted a Combined Operating License Application with the NRC for construction and operation of a possible 1,500 MW nuclear power plant at the sitechallenges of the company’s existing Fermi 2 nuclear plant.national and regional economies, we continue to move forward in our efforts to improve the operating performance and cash flow of Detroit Edison. We have not decidedcontinue to favorably resolve outstanding regulatory issues, many of which were addressed by Michigan legislation. We expect that our planned significant environmental and renewable expenditures will result in earnings growth. Looking forward, we face additional issues, such as higher levels of capital spending, volatility in prices for coal and other commodities, investment returns and changes in discount rate assumptions in benefit plans and health care costs, and uncertainty of legislative or regulatory actions regarding climate change. We expect to continue an intense focus on construction of a new base-load nuclear plant; however, by completing the license application before the end of 2008, we may qualify for financial incentives under the Federal Energy Policy Act of 2005. In addition, Detroit Edison is also moving ahead with plans for renewable energy resourcesour continuous improvement efforts to improve productivity, remove waste and an aggressive energy efficiency program.
The following variables, either individually or in combination, could impactdecrease our future results:
Access to capital markets and capital market conditions and the results of other financing efforts which can be affected by credit agency ratings;
Instability in capital markets which could impact availability of short and long-term financing or the potential for loss on cash equivalents and investments;
Economic conditions within Michigan and corresponding impacts on demand for electricity;
Collectibility of accounts receivable;
Increases in future expense and contributions to pension and other postretirement plans due to declines in value resulting from market conditions;

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The amount and timing of cost recovery allowed as a result of regulatory proceedings, related appeals or new legislation;
Our ability to reduce costs and maximize plant and distribution system performance;
Variations in market prices of power, coal and gas;
Weather, including the severity and frequency of storms;
The level of customer participation in the electric Customer Choice program; and
Any potential new federal and state environmental, renewable energy and energy efficiency requirements.
Impact of Regulatory Decisions
On December 23, 2008, the MPSC issued an order in Detroit Edison’s February 20, 2008 updated rate case filing. The MPSC approved an annual revenue increase of $84 million effective January 14, 2009 or a 2.0% average increase in Detroit Edison’s annual revenue requirement for 2009. Included in the approved $84 million increase in revenues was a return on equity of 11% on an expected 49% equity and 51% debt capital structure.
Other key aspects of the MPSC order include the following:
In order to more accurately reflect the actual cost of providing service to business customers, the MPSC adopted an immediate 39% phase out of the residential rate subsidy, with the remaining amount to be eliminated in equal installments over the next five years, every October 1.
Accepted Detroit Edison’s proposal to reinstate and modify the tracking mechanism on Electric Choice sales (CIM) with a base level of 1,561 GWh. The modified mechanism will not have a cap on the amount recoverable.
Terminated the Pension Equalization Mechanism.
Approved an annual reconciliation mechanism to track expenses associated with restoration costs (storm and non-storm related expenses) and line clearance expenses. Annual reconciliations will be required using a base expense level of $110 million and $51 million, respectively.
Approved Detroit Edison’s proposal to recover a return on $15 million in working capital associated with the preparation of an application for a new nuclear generation facility at its current Fermi 2 site.
The MPSC issued an order on August 31, 2006 approving a settlement agreement providing for an annualized rate reduction of $53 million for 2006 for Detroit Edison, effective September 5, 2006. Beginning January 1, 2007, and continuing until April 13, 2008, rates were reduced by an additional $26 million, for a total reduction of $79 million annually. Detroit Edison experienced a rate reduction of approximately $76 million in 2007 and approximately $25 million during the period the rate reduction was in effect for 2008, as a result of this order. The revenue reduction was net of the recovery of costs associated with the Performance Excellence Process. The settlement agreement provided for some level of realignment of the existing rate structure by allocating a larger percentage of the rate reduction to the commercial and industrialwhile improving customer classes than to the residential customer classes.
Impact of Legislation
On September 18, 2008, the Michigan House of Representatives and Michigan Senate passed a package of bills to establish a comprehensive, sustainable, long-term energy plan for Michigan. The Governor of Michigan signed the bills on October 6, 2008.satisfaction.

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The package of bills includes:
Item 7A. 2008 Public Act (PA) 286 that reforms Michigan’s utility regulatory framework, including the electric Customer Choice program,
2008 PA 295 that establishes a renewable portfolio / energy optimization standardQuantitative and provides a funding mechanism, and
2008 PA 287 that provides for an income tax credit for the purchase of energy efficient appliances and a credit to offset a portion of the renewable charge.Qualitative Disclosures about Market Risk
2008 PA 286 makes the following changes in the regulatory framework for Michigan utilities.
Electric Customer Choice reform— The bill establishes a 10 percent limit on participation in the electric Customer Choice program. In general, customers representing 10 percent of a utility’s load may receive electric generation from an electric supplier that is not a utility. After that threshold is met, the remaining customers will remain on full, bundled utility service. As of December 31, 2008, approximately 3 percent of Detroit Edison’s load was on the electric Customer Choice program. The bill also allows continuation of prior MPSC policies for customers to return to full utility service.
Cost-of-service based electric rates (deskewing)— The bill requires the MPSC to set rates based on cost-of-service for all customer classes, eliminating over a five-year period the current subsidy by businesses of residential customer rates. This provision does not change total revenue for Detroit Edison. It lowers rates for most commercial and industrial customers and increases rates for residential and certain other industrial customers to match the actual cost of service for each customer class. Rate changes will be phased in over five years, with a 2.5% annual cap on residential rate increases due to deskewing beginning January 1, 2009. Rates for schools and other qualified educational institutions will be set at their cost of service sooner.
File and use ratemaking— The bill establishes a 12 month deadline for the MPSC to complete a rate case and allows a utility to self-implement rate changes six months after a rate filing, subject to certain limitations. If the final order leads to lower rates than the utility had self-implemented, the utility will refund with interest, the difference. In addition, utility rate cases may be based on a forward test year. The bill also has provisions designed to help the MPSC obtain increased funding for additional staff.
Certificate of Need process for major capital investments— The bill establishes a certificate of need process for capital projects costing more than $500 million. The process requires the MPSC to review for prudence, prior to construction, proposed investments in new generating assets, acquisitions of existing power plants, major upgrades of power plants, and long-term power purchase agreements. The bill increases the certainty for utilities to recover the cost of projects approved by the MPSC and provides for the utilities to recover interest expenses during construction.
Merger & Acquisition approval— The bill grants the MPSC the authority to review and approve proposed utility mergers and acquisitions in Michigan and sets out evaluation criteria.
2008 PA 295 establishes renewable energy and energy optimization (energy efficiency, energy conservation or load management) programs in Michigan and provides for a separate funding surcharge to pay the cost of those programs. In accordance with the new law, the MPSC issued a temporary order on December 4, 2008 implementing this act. Within 90 days following the issuance of the temporary order, Detroit Edison is required to file a Renewable Portfolio Standard (RPS) plan with the MPSC. In addition, Detroit Edison is required to file an Energy Optimization plan with the MPSC.

16


Renewable Energy Standard
The bill requires electric providers to source 10% of electricity sold to retail customers from renewable energy resources by 2015.
Qualifying renewable energy resources include wind, biomass, solar, hydro, and geothermal, among others.
Detroit Edison will be required to have a renewable energy capacity portfolio of 300MW by December 31, 2013 and 600MW by December 31, 2015.
The MPSC will establish a per meter surcharge to fund the renewable energy requirements. The recovery mechanism starts prior to actual construction in order to smooth the rate impact for customers.
The bill allows for the lowering of compliance if RPS costs exceed the surcharge/cost cap or if other specified factors adversely affect the availability of renewable energy.
The bill specifies that a utility can build or have others build and later sell to the utility up to 50 percent of the generation required to meet the RPS. The other 50 percent would be contracted through power purchase agreements.
The bill also provides for a net metering program to be established by MPSC order for on-site customer-owned renewable generation up to 1% of an electric utility’s load.
Energy Optimization Standard
Requires utilities to create electric energy optimization plans for each customer class and includes funding surcharges as well as the potential for incentives for exceeding performance goals.
For electric sales, the program targets 0.3 percent annual savings in 2009, ramping up to 1 percent annual savings by 2012. Savings percentages are based on prior year retail sales.
The MPSC will allow utilities to capitalize certain costs of their energy optimization program. The costs which can be capitalized include equipment, materials, installation costs and customer incentives.
Incentives are potentially available for exceeding annual program targets. The financial incentive could be the lesser of 25% of the net cost reduction to our customers or 15% of total program spend, subject to MPSC approval.
By March 2016, the MPSC may suspend the program if it determines the program is no longer cost-effective.
Impact of Financial Markets
Recent distress in the financial markets has had an adverse impact on financial market activities, including extreme volatility in security prices and severely diminished liquidity and credit availability. Pursuant to the failures of large financial institutions, the credit situation rapidly evolved into a global crisis resulting in a number of international bank failures and declines in various stock indexes, and large reductions in the market value of equities and commodities worldwide. The crisis has led to increased volatility in the markets for both financial and physical assets, as the failures of large financial institutions resulted in sharply reduced trading volumes and activity. The effects of the credit situation will continue to be monitored.
We have experienced difficulties in accessing the commercial paper markets for short-term financing needs and an extended period of distress in the capital markets could have a negative impact on our liquidity in the future. Short-

17


term borrowings, principally in the form of commercial paper, provide us with the liquidity needed on a daily basis. Our commercial paper program is supported by our unsecured credit facilities. Beginning late in the third quarter of 2008, access to the commercial paper markets was sharply reduced and, as a result, we drew against our unsecured credit lines to supplement other sources of funds to meet our short-term liquidity needs. We continue to access the long-term bond markets as evidenced by certain financings completed in the fourth quarter of 2008. Since December 31, 2008, we have benefited from substantially improved liquidity and pricing in the commercial paper market.
Approximately $281 million of our total short-term credit arrangements of $350 million expire between July and October 2009, with the remainder expiring in October 2010. In anticipation of a significantly more challenging credit market, we expect to pursue the renewal of our syndicated revolving credit facility before its expiration. Given current conditions in the credit markets, we anticipate that the new facility will vary significantly from our current facilities with respect to such items as bank participation, allocation levels, pricing and covenants. We are currently in discussions with our existing bank group and actively pursuing potential new candidates for inclusion, as we anticipate that a number of banks in our current bank group will elect not to participate in the renewal or will alter their commitment level. Initial indications are that pricing is likely to be significantly higher due to market-wide re-pricing of risk. Multi-year agreements are still possible, however, the recent trend in the marketplace is toward 364 day facilities.
Our benefit plans have not experienced any direct significant impact on liquidity or counterparty risk due to the turmoil in the financial markets. As a result of losses experienced in the financial markets, our benefit plan assets experienced negative returns for 2008, which will result in increased benefit costs and higher contributions in 2009 and future years than in the recent past or than originally planned.
We have assessed the implications of these factors on our current business and determined that there has not been a significant impact to our financial position and results of operations in 2008. While the impact of continued market volatility and turmoil in the credit markets cannot be predicted, we believe we have sufficient operating flexibility, cash resources and funding sources to maintain adequate amounts of liquidity and to meet our future operating cash and capital expenditure needs. However, our business is capital intensive and requires access to capital, and the inability to access adequate capital could adversely impact earnings and cash flows.
CUMULATIVE EFFECT OF ACCOUNTING CHANGES
Effective January 1, 2007, we adopted FASB Interpretation No. (FIN 48),Accounting for Uncertainty in Income Taxes — an interpretation of FASB Statement No. 109. The cumulative effect of the adoption of FIN 48 represented a $0.7 million increase to the January 1, 2007 balance of retained earnings.
Effective January 1, 2006, we adopted SFAS No. 123(R),Share-Based Payment,using the modified prospective transition method. The cumulative effect of the adoption of SFAS 123(R) was an increase in net income of $1 million as a result of estimating forfeitures for previously granted stock awards and performance shares.
Item 7A. Quantitative and Qualitative Disclosures About Market Risk
Commodity Price Risk
We have commodity price risk arising from market price fluctuations. We have risks in conjunction with the anticipated purchases of coal, uranium, electricity, and base metals to meet our service obligation. Further, changes in the price of electricity can impact the level of exposure of Customer Choice programs and uncollectible expenses at the Electric Utility.obligations. However, the Company does not bear significant exposure to earnings risk as such changes are included in the PSCR regulatory rate-recovery mechanisms. Regulatory rate-recovery occurs in the form of the PSCR (see Note 1 of the Notes to Consolidated Financial Statements in Item 8 of this Report) and amechanism. The Company has tracking mechanisms to mitigate somea portion of losses from customer migration duerelated to electric Customer Choice programs.uncollectible accounts receivable. The Company is exposed to short-term cash flow or liquidity risk as a result of the time differential between actual cash settlements and regulatory rate recovery.

18


Credit Risk
Bankruptcies
We purchase and sell electricity from and to numerous companies operating in the steel, automotive, energy, retail and other industries. Certain of our customers have filed for bankruptcy protection under Chapter 11 of the U.S. Bankruptcy Code. We regularly review contingent matters relating to these customers and our purchase and sale contracts and we record provisions for amounts considered at risk of probable loss. We believe our previously accrued amounts are adequate for probable loss. The final resolution of these matters may have a material effect on our financial statements.
We provide services to the domestic automotive industry, including GM, Ford Motor Company (Ford) and Chrysler and many of their vendors and suppliers. Chrysler filed for bankruptcy protection on April 30, 2009. We have reserved approximately $7 million of pre-petition accounts receivable related to Chrysler as of December 31, 2009. GM andfiled for bankruptcy protection on June 1, 2009. We have not reserved or written off any pre-petition accounts or notes receivable related to GM as of December 31, 2009. Closing of GM or Chrysler have recently received loans fromplants or other facilities that operate within Detroit Edison’s service territory will also negatively impact the U.S. Government to provide them with the working capital necessary to continue to operateCompany’s operating revenues in the short term.future periods. In February 2009, GM and Chrysler submitted viability plans to the U.S. Government indicating that additional loans were necessary to continue operations in the short term. Further plant closures, bankruptcies or a federal government mandated restructuring program could have a significant impact oneach represented two percent of our results. As the circumstances surrounding the viability of these entities are dynamic and uncertain, we continue to monitor developments as they occur.annual electric sales volumes, respectively.
Other
We engage in business with customers that are non-investment grade. We closely monitor the credit ratings of these customers and, when deemed necessary, we request collateral or guarantees from such customers to secure their obligations.
Interest Rate Risk
Detroit Edison is subject to interest rate risk in connection with the issuance of debt securities. Our exposure to interest rate risk arises primarily from changes in U.S. Treasury rates, commercial paper rates and London Inter-Bank Offered Rates (LIBOR). We estimate that if interest rates were 10% higher or lower, the fair value of long-term debt at December 31, 20082009 would decrease $213$171 million and increase $194$186 million, respectively.

1916


Item 8. Financial Statements and Supplementary Data
Item 8.Financial Statements and Supplementary Data
   
  Page
 18
 21
Consolidated Financial Statements
 
 
 19
22 
 
 21
23 
 
 22
24 
 
 24
26 
 
 25
27 
 
 26
 28 
Financial Statement Schedule
 
 7073

2017


Controls and Procedures
(a) Evaluation of disclosure controls and procedures
Management of the Company carried out an evaluation, under the supervision and with the participation of the Company’sDetroit Edison’s Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of the Company’s disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) as of December 31, 2008,2009, which is the end of the period covered by this report. Based on this evaluation, the Company’s Chief Executive Officer and Chief Financial Officer have concluded that such controls and procedures are effective in providing reasonable assurance that information required to be disclosed by the Company in reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to provide reasonable assurance that information required to be disclosed by the Company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the Company’s management, including its Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure. Due to the inherent limitations in the effectiveness of any disclosure controls and procedures, management cannot provide absolute assurance that the objectives of its disclosure controls and procedures will be attained.
(b) Management’s report on internal control over financial reporting
Management of the Company is responsible for establishing and maintaining adequate internal control over financial reporting. The Company’s internalreporting as such term is defined in Exchange Act Rules 13a-15(f) and 15d-15(f). Internal control system wasover financial reporting is a process designed by, or under the supervision of, our CEO and CFO, to provide reasonable assurance to the Company’s management and Board of Directors regarding the reliability of financial reporting and the preparation and fair presentation of published financial statements.statements for external purposes in accordance with generally accepted accounting principles.
AllBecause of its inherent limitations, internal control systems, no matter how well designed, have inherent limitations. Therefore, even those systems determined to be effective can provide only reasonable assurance with respect toover financial statement preparation and presentation. Projectionsreporting may not prevent or detect misstatements. Also, projections of any evaluation of the effectiveness to future periods are subject to the risksrisk that a controlcontrols may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
The Company’s managementManagement of the Company has assessed the effectiveness of the Company’s internal control over financial reporting as of December 31, 2008.2009. In making this assessment, itmanagement used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) inInternal Control—Integrated Framework.Based on ourthis assessment, management believesconcluded that, as of December 31, 2008,2009, the Company’s internal control over financial reporting was effective based on those criteria.
This annual report does not include an audit report of the Company’s independent registered public accounting firm regarding internal control over financial reporting. Management’s report was not subject to audit by the Company’s independent registered public accounting firm pursuant to temporary rules of the Securities and Exchange Commission that permit the Company to provide only management’s report in this annual report.
(c) Changes in internal control over financial reporting
There have been no changes in the Company’s internal control over financial reporting during the quarter ended December 31, 20082009 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

2118


REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
To the Board of Directors and Shareholder of The Detroit Edison Company
In our opinion, the consolidated financial statements listed in the accompanying index present fairly, in all material respects, the financial position of The Detroit Edison Company and its subsidiaries at December 31, 2009, and the results of their operations and their cash flows for the year then ended in conformity with accounting principles generally accepted in the United States of America. In addition, in our opinion, the financial statement schedule for the year ended December 31, 2009 listed in the accompanying index presents fairly, in all material respects, the information set forth therein when read in conjunction with the related consolidated financial statements. These financial statements and financial statement schedule are the responsibility of the Company’s management. Our responsibility is to express an opinion on these financial statements and financial statement schedule based on our audit. We conducted our audit of these statements in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audit provides a reasonable basis for our opinion.
/s/ PricewaterhouseCoopers LLP
Detroit, Michigan
February 23, 2010

19


REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
To the Board of Directors and Shareholder of The Detroit Edison Company
We have audited the consolidated statementsstatement of financial position of The Detroit Edison Company and subsidiaries (the “Company”) as of December 31, 2008 and 2007 and the related consolidated statements of operations, cash flows, and changes in shareholder’s equity and comprehensive income for each of the three years in the period ended December 31, 2008.2008 and 2007. Our audits also included the 2008 and 2007 information in the financial statement schedules listed in the Index at Item 15.accompanying index. These financial statements and financial statement schedules are the responsibility of the Company’s management. Our responsibility is to express an opinion on the financial statements and financial statement schedules based on our audits.
We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.
In our opinion, such consolidated financial statements present fairly, in all material respects, the financial position of The Detroit Edison Company and subsidiaries at December 31, 2008, and 2007, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2008 and 2007, in conformity with accounting principles generally accepted in the United States of America. Also, in our opinion, such 2008 and 2007 financial statement schedules, when considered in relation to the basic consolidated financial statements of the Company taken as a whole, present fairly, in all material respects, the information set forth therein.
As discussed in Note 7 to the consolidated financial statements, in connection with the required adoption of a new accounting standard, the Company changed its method of accounting for uncertainty in income taxes on January 1, 2007. As discussed in Notes 2 and 15 to the consolidated financial statements, in connection with the required adoption of new accounting standards, in 2006 the Company changed its method of accounting for share based payments and defined benefit pension and other postretirement plans, respectively.
/S/ DELOITTEs/ Deloitte & TOUCHETouche LLP
Detroit, Michigan
February 27, 2009

2220


The Detroit Edison Company

Consolidated Statements of Operations
                        
 Year Ended December 31  Year Ended December 31 
(in Millions) 2008 2007 2006  2009 2008 2007 
       
Operating Revenues
 $4,874 $4,900 $4,737  $4,714 $4,874 $4,900 
              
  
Operating Expenses
  
Fuel and purchased power 1,778 1,686 1,566  1,491 1,778 1,686 
Operation and maintenance 1,322 1,422 1,337  1,277 1,322 1,422 
Depreciation and amortization 743 764 812  844 743 764 
Taxes other than income 232 277 252  205 232 277 
Asset (gains) losses and reserves, net  (1) 8  (6)  (2)  (1) 8 
              
 4,074 4,157 3,961  3,815 4,074 4,157 
              
  
Operating Income
 800 743 776  899 800 743 
              
  
Other (Income) and Deductions
  
Interest expense 293 294 278  325 293 294 
Interest income  (6)  (7)  (4)  (2)  (6)  (7)
Other income  (51)  (40)  (35)  (39)  (51)  (40)
Other expenses 47 30 55  11 47 30 
              
 283 277 294  295 283 277 
              
  
Income Before Income Taxes
 517 466 482  604 517 466 
  
Income Tax Provision
 186 149 162  228 186 149 
              
  
Income Before Accounting Change
 331 317 320 
 
Cumulative Effect of Accounting Change, net of tax
   1 
       
 
Net Income
 $331 $317 $321  $376 $331 $317 
              
See Notes to Consolidated Financial Statements

2321


The Detroit Edison Company

Consolidated Statements of Financial Position
                
 December 31  December 31 
(in Millions) 2008 2007  2009 2008 
Assets
  
Current Assets
  
Cash and cash equivalents $30 $47  $34 $30 
Restricted cash 84 135  79 84 
Accounts receivable (less allowance for doubtful accounts of $121 and $93, respectively) 
Accounts receivable (less allowance for doubtful accounts of $118 and $121, respectively) 
Customer 709 727  696 709 
Affiliates 5 3  3 5 
Other 34 90  108 34 
Accrued power supply cost recovery revenue 20 75 
Inventories  
Fuel 170 150  135 170 
Materials and supplies 169 165  173 169 
Notes receivable  
Affiliates 41   65 41 
Other 3   3 3 
Other 75 60  79 95 
          
 1,340 1,452  1,375 1,340 
          
  
Investments
  
Nuclear decommissioning trust funds 685 824  817 685 
Other 99 111  104 99 
          
 784 935  921 784 
          
  
Property
  
Property, plant and equipment 14,977 14,372  15,451 14,977 
Less accumulated depreciation  (5,828)  (5,640)
Less accumulated depreciation and amortization  (6,133)  (5,828)
          
 9,149 8,732  9,318 9,149 
          
  
Other Assets
  
Regulatory assets 3,456 2,511  3,333 3,456 
Securitized regulatory assets 1,001 1,124  870 1,001 
Intangible assets 19 9  9 19 
Notes receivable — affiliates 17  
Other 93 122  118 93 
          
 4,569 3,766  4,347 4,569 
          
  
Total Assets
 $15,842 $14,885  $15,961 $15,842 
          
See Notes to Consolidated Financial Statements

2422


The Detroit Edison Company
Consolidated Statements of Financial Position
                
 December 31  December 31 
(in Millions, Except Shares) 2008 2007  2009 2008 
Liabilities and Shareholder’s Equity
  
Current Liabilities
  
Accounts payableaffiliates
 $103 $138 
Accounts payable other 346 396 
Accounts payable 
Affiliates $74 $103 
Other 251 346 
Accrued interest 80 77  83 80 
Dividends payable  76 
Accrued vacations 58 52  48 58 
Short-term borrowingsaffiliates
  277 
Short-term borrowings other 75 406 
Short-term borrowings  75 
Current portion long-term debt, including capital leases 153 174  660 153 
Other 263 243  213 263 
          
 1,078 1,839  1,329 1,078 
          
  
Long-Term Debt (net of current portion)
  
Mortgage bonds, notes and other 4,091 3,473  3,579 4,091 
Securitization bonds 932 1,065  793 932 
Capital lease obligations 33 42  25 33 
          
 5,056 4,580  4,397 5,056 
          
  
Other Liabilities
  
Deferred income taxes 1,894 1,825  1,871 1,894 
Regulatory liabilities 593 583  711 593 
Asset retirement obligations 1,205 1,160  1,285 1,205 
Unamortized investment tax credit 85 95  75 85 
Nuclear decommissioning 114 134  136 114 
Accrued pension liabilityaffiliates
 978 374  987 978 
Accrued postretirement liabilityaffiliates
 1,075 816  1,058 1,075 
Other 208 176  239 208 
          
 6,152 5,163  6,362 6,152 
          
  
Commitments and Contingencies (Notes 4, 5 and 13)
 
Commitments and Contingencies (Notes 10 and 16)
 
  
Shareholder’s Equity
  
Common stock, $10 par value, 400,000,000 shares authorized, and 138,632,324 shares issued and outstanding 2,946 2,771  3,196 2,946 
Retained earnings 622 528  693 622 
Accumulated other comprehensive income (loss)  (12) 4   (16)  (12)
          
 3,556 3,303  3,873 3,556 
          
  
Total Liabilities and Shareholder’s Equity
 $15,842 $14,885  $15,961 $15,842 
          
See Notes to Consolidated Financial Statements

2523


The Detroit Edison Company

Consolidated Statements of Cash Flows
                        
 Year Ended December 31  Year Ended December 31 
(in Millions) 2008 2007 2006  2009 2008 2007 
       
Operating Activities
  
Net income $331 $317 $321  $376 $331 $317 
Adjustments to reconcile net income to net cash from operating activities:  
Depreciation and amortization 743 764 812  844 743 764 
Deferred income taxes 91  (111) 2  15 91  (111)
Asset (gains) losses and reserves, net  (2) 8  (6)  (2)  (2) 8 
Cumulative effect of accounting change    (1)
Changes in assets and liabilities, exclusive of changes shown separately (Note 1) 118  (213)  (213)
Changes in assets and liabilities, exclusive of changes shown separately (Note 18)  (39) 118  (213)
              
Net cash from operating activities 1,281 765 915  1,194 1,281 765 
              
  
Investing Activities
  
Plant and equipment expenditures  (943)  (809)  (972)  (793)  (943)  (809)
Proceeds from sale of assets, net  3 28    3 
Restricted cash 50  (3)  (48) 5 50  (3)
Notes receivable from affiliate  (41)    (42  (41)  
Proceeds from sale of nuclear decommissioning trust fund assets 232 286 253  295 232 286 
Investment in nuclear decommissioning trust funds  (255)  (323)  (284)  (315)  (255)  (323)
Other investments  (54)  (33)  (29)  (46)  (54)  (33)
              
Net cash used for investing activities  (1,011)  (879)  (1,052)  (896)  (1,011)  (879)
              
  
Financing Activities
  
Issuance of long-term debt 862 50 314  129 862 50 
Redemption of long-term debt  (166)  (185)  (126)  (278)  (166)  (185)
Repurchase of long-term debt  (238)      (238)  
Short-term borrowings, net  (331) 129 114   (75)  (331) 129 
Short-term borrowings from affiliate  (277) 277     (277) 277 
Capital contribution by parent company 175 175 150  250 175 175 
Dividends on common stock  (305)  (305)  (305)  (305)  (305)  (305)
Other  (7)  (7)  (9)  (15)  (7)  (7)
              
Net cash from (used for) financing activities  (287) 134 138   (294)  (287) 134 
              
  
Net Increase in Cash and Cash Equivalents
  (17) 20 1 
Net Increase (Decrease) in Cash and Cash Equivalents
 4  (17) 20 
Cash and Cash Equivalents at Beginning of the Period
 47 27 26  30 47 27 
              
Cash and Cash Equivalents at End of the Period
 $30 $47 $27  $34 $30 $47 
              
See Notes to Consolidated Financial Statements

2624


The Detroit Edison Company
Consolidated Statements of Changes in Shareholder’s Equity and Comprehensive income
                                                
 Accumulated   Accumulated   
 Additional Other   Additional Other   
 Common Stock Paid in Retained Comprehensive   Common Stock Paid in Retained Comprehensive   
(Dollars in Millions, Shares in Thousands) Shares Amount Capital Earnings Income Total Shares Amount Capital Earnings Income (Loss) Total 
Balance, December 31, 2005 138,632 $1,386 $1,060 $500 $2 $2,948 
Net income    321  321 
Dividends declared on common stock     (305)   (305)
Net change in unrealized gains on investments, net of tax     1 1 
Capital contribution by parent company   150   150 
— — — —
Balance, December 31, 2006 138,632 1,386 1,210 516 $3 3,115  138,632 $1,386 $1,210 $516 $3 $3,115 
Net income    317  317     317  317 
Dividends declared on common stock     (305)   (305)     (305)   (305)
Net change in unrealized gains on investments, net of tax     1 1      1 1 
Capital contribution by parent company   175   175    175   175 
— — — —
Balance, December 31, 2007 138,632 $1,386 $1,385 $528 $4 $3,303  138,632 1,386 1,385 528 4 3,303 
Net income    331  331     331  331 
Implementation of SFAS No. 158, measurement date provision, net of tax     (9)   (9)
Implementation of ASC 715 (SFAS No. 158) measurement date provision, net of tax     (9)   (9)
Dividends declared on common stock     (228)   (228)
Net change in unrealized gains on investments, net of tax      (2)  (2)
Benefit obligations, net of tax      (14)  (14)
Capital contribution by parent company   175   175 
Balance, December 31, 2008 138,632 1,386 1,560 622  (12) 3,556 
Net income    376  376 
Dividends declared on common stock     (228)   (228)     (305)   (305)
Net change in unrealized losses on investments, net of tax      (2)  (2)      (2)  (2)
Benefit obligations, net of tax      (14)  (14)      (2)  (2)
Capital contribution by parent company   175   175    250   250 
Balance, December 31, 2008
 138,632 $1,386 $1,560 $622 $(12) $3,556 
Balance, December 31, 2009
 138,632 $1,386 $1,810 $693 $(16) $3,873 
The following table displays comprehensive income:
                        
(in Millions) 2008 2007 2006  2009 2008 2007 
       
Net income $331 $317 $321  $376 $331 $317 
              
Other comprehensive income:  
Net change in unrealized gain (losses) on investments, net of tax of $(1), $1 and $1  (2) 1 1 
Benefit obligations, net of tax of $(7), $and $
  (14)   
Net change in unrealized gain (losses) on investments, net of tax of $(1), $(1) and $1  (2)  (2) 1 
Benefit obligations, net of tax of $(1), $(7) and $
  (2)  (14)  
              
Comprehensive income $315 $318 $322  $372 $315 $318 
              
See Notes to Consolidated Financial Statements

2725


The Detroit Edison Company
Notes to Consolidated Financial Statements
NOTE 1 — SIGNIFICANT ACCOUNTING POLICIESBASIS OF PRESENTATION
Corporate Structure
The Detroit Edison Company (Detroit Edison) is a Michigan public utility engaged in the generation, purchase, distribution and sale of electric energy to approximately 2.22.1 million customers in southeastern Michigan. Detroit Edison is regulated by the MPSC and FERC. In addition, we are regulated by other federal and state regulatory agencies including the NRC, the EPA and MDEQ.
References in this report to “we,” “us,’ “our’ “our” or “Company” are to Detroit Edison and its subsidiaries, collectively.
Basis of Presentation
The accompanying consolidated financial statements are prepared using accounting principles generally accepted in the United States of America. These accounting principles require usmanagement to use estimates and assumptions that impact reported amounts of assets, liabilities, revenues and expenses, and the disclosure of contingent assets and liabilities. Actual results may differ from ourthe Company’s estimates.
Certain prior year balances were reclassified to match the current year’s financial statement presentation.
Principles of Consolidation
We consolidateThe Company consolidates all majority owned subsidiaries and investments in entities in which we haveit has controlling influence. Non-majority owned investments are accounted for using the equity method when the companyCompany is able to influence the operating policies of the investee. Non-majority owned investments include investments in limited liability companies, partnerships or joint ventures. When we dothe Company does not influence the operating policies of an investee, the cost method is used. These consolidated financial statements also reflect the Company’s proportionate interests in certain jointly owned utility plant. We eliminateThe Company eliminates all inter-companyintercompany balances and transactions.
For entities that are consideredThe Company consolidates variable interest entities (VIEs) for which we applyare the provisionsprimary beneficiary. In general, the Company determines whether it is the primary beneficiary of FASB Interpretation No. (FIN) 46-R,Consolidationa VIE through a qualitative analysis of Variable Interest Entities, an Interpretationrisk which indentifies which variable interest holder absorbs the majority of ARB No. 51.the financial risk or rewards and variability of the VIE. In performing this analysis, the Company considers all relevant facts and circumstances, including: the design and activities of the VIE, the terms of the contracts the VIE has entered into, the identification of variable interest holders including equity owners, customers, suppliers and debt holders and which parties participated significantly in the design of the entity. If the qualitative analysis is inconclusive, a specific quantitative analysis is performed. Refer to Note 3 for discussion of changes in consolidation guidance applicable to VIEs and Note 16 for discussion of the Company’s involvement with VIE’s.
NOTE 2 — SIGNIFICANT ACCOUNTING POLICIES
Revenues
Revenues from the sale and delivery of electricity are recognized as services are provided. We record revenues for electric services provided but unbilled at the end of each month. Detroit Edison’s accrued revenues include a component for the cost of power sold that is recoverable through the PSCR mechanism. Annual PSCR proceedings before the MPSC permit Detroit Edison to recover prudent and reasonable supply costs. Any over-collection or under-collection of costs, including interest, will be reflected in future rates. See Note 4.10.
Accounting for ISO Transactions
Detroit Edison participates in the energy market through MISO. MISO requires that we submit hourly day-ahead, real time and FTR bids and offers for energy at locations across the MISO region. Detroit Edison accounts for MISO

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transactions on a net hourly basis in each of the day-ahead, real-time and FTR markets and net transactions across all MISO energy market locations. We record net purchases in a single hour in fuel, purchased power and gas and net sales in a single hour in operating revenues in the Consolidated Statements of Income. We record net sale billing adjustments when we receive invoices. We record expense accruals for future net purchases adjustments base on historical experience, and reconcile accruals to actual expenses when we receive invoices.
Comprehensive Income
Comprehensive income is the change in commonCommon shareholder’s equity during a period from transactions and events from non-owner sources, including net income. As shown in the following table, amounts recorded to otherOther comprehensive income for the year ended December 31, 20082009 include unrealized gains and losses from derivatives accounted for as cash flow hedges, unrealized gains and losses on available for sale securities, and changes in benefit obligations.
                        
 Accumulated  Accumulated 
 Other  Other 
 Benefit Comprehensive  Benefit Comprehensive 
(in Millions) Obligations Other Loss  Obligations Other Loss 
Beginning balances $ $4 $4  $(14) $2 $(12)
Current period change  (14) (2)  (16)  (2)  (2)  (4)
              
Ending balance $(14) $2 $(12) $(16) $ $(16)
              

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Cash Equivalents and Restricted Cash
Cash and cash equivalents include cash on hand, cash in banks and temporary investments purchased with remaining maturities of three months or less. Restricted cash consists of funds held to satisfy requirements of certain debt agreements. Restricted cash designated for interest and principal payments within one year is classified as a current asset.
Receivables
Accounts receivable are primarily composed of trade receivables and unbilled revenue. Our accounts receivable are stated at net realizable value. Customer accounts are written off based upon approved regulatory and legislative requirements.
The allowance for doubtful accounts is calculated using the aging approach that utilizes rates developed in reserve studies. We establish an allowance for uncollectible accounts based on historical losses and management’s assessment of existing economic conditions, customer trends, and other factors. Customer accounts are generally considered delinquent if the amount billed is not received by the time the next bill is issued,due date, typically monthly,21 days, however, factors such as assistance programs may delay aggressive action. We assess late payment fees on trade receivables based on contractual past-due terms established with customers. Customer accounts are written off when collection efforts have been exhausted, generally one year after service has been terminated.
Unbilled revenues of $282$269 million and $267$282 million are included in customer accounts receivable at December 31, 20082009 and 2007,2008, respectively.
Inventories
We value fuelThe Company generally values inventory and materials and supplies at average cost.
Property, Retirement and Maintenance, and Depreciation, Depletion and DepletionAmortization
Summary of property by classification as of December 31:
         
(in Millions) 2008  2007 
       
Property, Plant and Equipment
        
Generation $8,544  $8,100 
Distribution  6,433   6,272 
       
Total  14,977   14,372 
       
         
Less Accumulated Depreciation and Depletion
        
Generation  (3,690)  (3,539)
Distribution  (2,138)  (2,101)
       
Total  (5,828)  (5,640)
       
Net Property, Plant and Equipment
 $9,149  $8,732 
       
Property is stated at cost and includes construction-related labor, materials, overheads and an allowance for funds used during construction (AFUDC). AFUDC capitalized during 2008 and 2007 was approximately $44 million and $24 million, respectively. The cost of properties retired, less salvage value is charged to accumulated depreciation.
Expenditures for maintenance and repairs are charged to expense when incurred, except for Fermi 2.
Approximately $25$13 million and $4$25 million of expenses related to the anticipated Fermi 2 refueling outage scheduled for 2009outages were accrued at December 31, 20082009 and 2007,December 31, 2008, respectively. Amounts are being accrued on a pro-rata basis over an 18-month18-

27


month period that began in November 2007.coincides with scheduled refueling outages at Fermi 2. This accrual of outage costs matches the regulatory recovery of these costs in rates set by the MPSC.
We baseThe Company bases depreciation provisions for utility property on straight-line rates approved by the MPSC. The composite depreciation rate for Detroit Edison was 3.3% in 2008, 2007 and 2006.

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The average estimated useful life for our generation and distribution property was 40 years and 37 years, respectively, at December 31, 2008.2009.
We creditThe Company credits depreciation, depletion and amortization expense when we establish regulatory assets for plant-related costs such as depreciation or plant-related financing costs. We chargeThe Company charges depreciation, depletion and amortization expense when we amortize these regulatory assets. We creditThe Company credits interest expense to reflect the accretion income on certain regulatory assets.
Intangible assets relating to capitalizedCapitalized software areis classified as Property, plant and equipment and the related amortization is included in Accumulated depreciation on the Consolidated Statements of Financial Position. We capitalizeThe Company capitalizes the costs associated with computer software we developthe Company develops or obtainobtains for use in our business. We amortize intangibleThe Company amortizes Intangible assets on a straight-line basis over the expected period of benefit, ranging from 5 to 15 years. Intangible assets amortization expense was $45 million in 2008, $31 million in 2007, and $28 million in 2006. The gross carrying amount and accumulated amortization of intangible assets at December 31, 2008 were $454 million and $126 million, respectively. The gross carrying amount and accumulated amortization of intangible assets at December 31, 2007 were $376 million and $83 million, respectively. Amortization expense of intangible assets is estimated to be $45 million annually for 2009 through 2013.
Asset Retirement Obligations
We have recorded asset retirement obligations in accordance with SFAS No. 143,Accounting for Asset Retirement Obligationsand FIN No. 47,Accounting for Conditional Asset Retirement Obligations, an interpretation of FASB Statement No. 143. We have a legal retirement obligation for the decommissioning costs for our Fermi 1 and Fermi 2 nuclear plants. We have conditional retirement obligations for disposal of asbestos at certain of our power plants. To a lesser extent, we have conditional retirement obligations at certain service centers, and disposal costs for PCB contained within transformers and circuit breakers.
Timing differences arise in the expense recognition of legal asset retirement costs that we are currently recovering in rates. We defer such differences under SFAS No. 71,Accounting for the Effects of Certain Types of Regulation.
No liability has been recorded with respect to lead-based paint, as the quantities of lead-based paint in our facilities are unknown. In addition, there is no incremental cost to demolitions of lead-based paint facilities vs. non-lead based paint facilities and no regulations currently exist requiring any type of special disposal of items containing lead-based paint.
Ludington Hydroelectric Power Plant (a jointly owned plant) has an indeterminate life and no legal obligation currently exists to decommission the plant at some future date. Substations, manholes and certain other distribution assets within Detroit Edison have an indeterminate life. Therefore, no liability has been recorded for this asset.
A reconciliation of the asset retirement obligation for 2008 follows:
     
(in Millions)    
Asset retirement obligations at January 1, 2008 $1,170 
Accretion  76 
Liabilities settled  (10)
Revision in estimated cash flows  (10)
    
Asset retirement obligations at December 31, 2008  1,226 
Less amount included in current liabilities  (21)
    
  $1,205 
    
Approximately $1.2 billion of the asset retirement obligations represents nuclear decommissioning liabilities that are funded through a surcharge to electric customers over the life of the Fermi 2 nuclear plant.See Note 6.
Long-Lived Assets
Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. If the carrying amount of the asset exceeds the expected future cash

30


flows generated by the asset, an impairment loss is recognized resulting in the asset being written down to its estimated fair value. Assets to be disposed of are reported at the lower of the carrying amount or fair value, less costcosts to sell.
Intangible Assets
We haveThe Company has certain intangible assets relating to emission allowances. Emission allowances are charged to fuel expense as the allowances are consumed in the operation of the business.
Excise and Sales Taxes
We recordThe Company records the billing of excise and sales taxes as a receivable with an offsetting payable to the applicable taxing authority, with no impact on the Consolidated Statements of Operations.
Deferred Debt Costs
The costs related to the issuance of long-term debt are deferred and amortized over the life of each debt issue. In accordance with MPSC regulations, the unamortized discount, premium and expense related to debt redeemed with a refinancing are amortized over the life of the replacement issue.
Investments in Debt and Equity Securities
WeThe Company generally classifyclassifies investments in debt and equity securities as either trading or available-for-sale and havehas recorded such investments at market value with unrealized gains or losses included in earnings or in other comprehensive income or loss, respectively. Changes in the fair value of Fermi 2 nuclear decommissioning-relateddecommissioning investments are recorded as adjustments to regulatory assets or liabilities, due to a recovery mechanism from customers. OurThe Company’s investments are reviewed for impairment each reporting period. If the assessment indicates that the impairment is other than temporary, a loss is recognized resulting in the investment being written down to its estimated fair value. See Note 12.
Consolidated Statement of Cash Flows
A detailed analysis of the changes in assets and liabilities that are reported in the consolidated statement of cash flows follows:
             
(in Millions) 2008  2007  2006 
          
Changes in Assets and Liabilities, Exclusive of Changes Shown Separately
            
Accounts receivable, net $72  $(163) $(36)
Inventories  (24)  (47)  (28)
Recoverable pension and postretirement costs  (852)  594   (925)
Accrued pension liability – affiliates  598   (330)  125 
Accounts payable  (82)  73   7 
Accrued power supply cost recovery revenue  82   41   (101)
Accrued payroll  3   (50)  47 
Income taxes payable  (29)  10   16 
General taxes  (12)  4   13 
Risk management and trading activities  1   (4)   
Accrued postretirement liability – affiliates  259   (239)  803 
Other assets  3   (387)  (114)
Other liabilities  99   285   (20)
          
  $118  $(213) $(213)
          
Supplementary cash and non-cash information for the years ended December 31 were as follows:
             
(in Millions) 2008 2007 2006
             
Cash Paid For            
Interest (excluding interest capitalized) $290  $295  $278 
Income taxes  24   280   141 
4.

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Stock-Based Compensation
The Company received an allocation of costs from DTE Energy associated with stock-based compensation. Our allocation for 2009, 2008 and 2007 for stock-based compensation expense was approximately $24 million, $15 million and $13 million, respectively.
Asset (gains) losses and losses,reserves, net
In 2007, we recorded a $13 million reserve for a loan guaranty related to Detroit Edison’s former ownership of a steam heating business now owned by Thermal Ventures II, LP (Thermal) resulting in a loss which was partially offset by approximately $5 million in gains on land and other sales. In 2006, we sold excess land near one of our power plants for a $6 million pre-tax gain.
Subsequent Events
The Company has evaluated subsequent events through February 23, 2010, the date that these financial statements were issued.
Other Accounting Policies
See the following notes for other accounting policies impacting our financial statements:
   
Note Title
  23 New Accounting Pronouncements
 4Regulatory Matters
  7Income Taxes
124 Fair Value
135 Financial and Other Derivative Instruments
1510Regulatory Matters
11Income Taxes
17 Retirement Benefits and Trusteed Assets

3229


NOTE 23 — NEW ACCOUNTING PRONOUNCEMENTS
FASB Accounting Standards Codification (Codification)
On July 1, 2009, the Codification became the single source of authoritative nongovernmental generally accepted accounting principles (GAAP) in the United States of America. The Codification is a reorganization of current GAAP into a topical format that eliminates the current GAAP hierarchy and establishes two levels of guidance — authoritative and non-authoritative. According to the FASB, all “non-grandfathered, non-SEC accounting literature” that is not included in the Codification would be considered non-authoritative. The FASB has indicated that the Codification does not change current GAAP. Instead, the proposed changes aim to (1) reduce the time and effort it takes for users to research accounting questions and (2) improve the usability of current accounting standards. The Codification is effective for interim and annual periods ending after September 15, 2009.
Fair Value Accounting
In September 2006, the FASB issued SFASASC 820 (SFAS No. 157,Fair Value MeasurementsMeasurements). SFAS No. 157The standard defines fair value, establishes a framework for measuring fair value in generally accepted accounting principles, and expands disclosures about fair value measurements. It emphasizes that fair value is a market-based measurement, not an entity-specific measurement. Fair value measurement should be determined based on the assumptions that market participants would use in pricing an asset or liability. Effective January 1, 2008, the Company adopted SFASASC 820 (SFAS No. 157.157). As permitted by FASB Staff Position FASASC 820-10 (FSP No. 157-2,157-2), the Company has elected to defer the effective date of SFAS No. 157the standard as it pertains to measurement and disclosures about the fair value of non-financial assets and liabilities tomade on a nonrecurring basis. The Company has adopted the recognition provisions for non-financial assets and liabilities as of January 1, 2009. See Note 4.
In April 2009, the FASB issued three FSPs intended to provide additional application guidance and enhance disclosures regarding fair value measurements and impairments of securities. The FSPs are effective for interim and annual periods ending after June 15, 2009.
ASC 825-10 (FSP No. 107-1 and APB No. 28-1),Interim Disclosures about Fair Value of Financial Instruments,expands the fair value disclosures required for all financial instruments within the scope of ASC 825-10 to interim periods.
ASC 820-10 (FSP No. 157-4),Determining Fair Value When the Volume and Level of Activity for the Asset or Liability Have Significantly Decreased and Identifying Transactions That Are Not Orderly, which applies to all assets and liabilities, i.e., financial and nonfinancial, reemphasizes that the objective of fair value remains unchanged (i.e., an exit price notion). The FSP provides application guidance on measuring fair value when the volume and level of activity has significantly decreased and identifying transactions that are not orderly. The FSP also emphasizes that an entity cannot presume that an observable transaction price is not orderly even when there has been a significant decline in the volume and level of activity.
ASC 320-10 (FSP No. 115-2 and SFAS No. 124-2),Recognition and Presentation of Other-Than-Temporary Impairments,is intended to bring greater consistency to the timing of impairment recognition, and provide greater clarity to investors about the credit and noncredit components of impaired debt securities that are not expected to be sold.
The Company adopted these FSPs in the second quarter of 2009. The adoption of SFAS No. 157these FSPs did not have a significant impact on the Company’s consolidated financial statements. See also Note 12.
In February 2007, the FASB issued SFAS No. 159,The Fair Value Option for Financial Assets and Financial Liabilities — Including an Amendment of FASB Statement No. 115. This Statement permits an entity to choose to measure many financial instruments and certain other items at fair value. The fair value option established by SFAS No. 159 permits all entities to choose to measure eligible items at fair value at specified election dates. An entity will report in earnings unrealized gains and losses on items, for which the fair value option has been elected, at each subsequent reporting date. The fair value option: (a) may be applied instrument by instrument, with a few exceptions, such as investments otherwise accounted for by the equity method; (b) is irrevocable (unless a new election date occurs); and (c) is applied only to entire instruments and not to portions of instruments. SFAS No. 159 is effective as of the beginning of an entity’s first fiscal year that begins after November 15, 2007. At January 1, 2008, the Company elected not to use the fair value option for financial assets and liabilities held at that date.
In October 2008, the FASB issued FASB Staff Position (FSP) 157-3,Determining the Fair Value of a Financial Asset in a Market That is Not Active. The FSP clarifies the application of SFAS No. 157,Fair Value Measurements,in an inactive market, and provides an illustrative example to demonstrate how the fair value of a financial asset is determined when the market for that financial asset is inactive. The FSP was effective upon issuance, including prior periods for which financial statements have not been issued. The adoption of the FSP did not have a material impact on the Company’s consolidated financial statements.
Business Combinations
In December 2007, the FASB issued SFAS No. 141(R),Business Combinations,to improve the relevance, representational faithfulness and comparability of the information that a reporting entity provides in its financial reports about a business combination and its effects. To accomplish this, SFAS No. 141(R) requires the acquiring entity in a business combination to recognize all the assets acquired and liabilities assumed in the transaction; establishes the acquisition date fair value as the measurement objective for all assets acquired and liabilities assumed; and requires the acquirer to disclose to investors and other users all of the information needed to evaluate and understand the nature and financial effect of the business combination. SFAS No. 141(R) is applied prospectively to business combinations entered into by the Company after January 1, 2009, with earlier adoption prohibited. The Company will apply the requirements of SFAS No. 141(R) to business combinations consummated after January 1, 2009.
GAAP Hierarchy
In May 2008, the FASB issued SFAS No. 162,The Hierarchy of Generally Accepted Accounting Principles.This statement identifies the sources of accounting principles and the framework for selecting the principles used in the preparation of financial statements under GAAP. SFAS No. 162 is effective 60 days following the approval of the Public Company Accounting Oversight Board amendments to AU section 411,The Meaning of Present Fairly in Conformity with Generally Accepted Accounting Principles. The Company will adopt SFAS No. 162 once effective. The adoption is not expected to have a material impact on its consolidated financial statements.

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Useful Life of Intangible Assets
In May 2008, the FASB issued FSP 142-3,Determination of the Useful Life of Intangible Assets.This FSP amends the factors that should be considered in developing renewal or extension assumptions used to determine the useful life of a recognized intangible asset under SFAS No. 142,Goodwill and Other Intangible Assets. For a recognized intangible asset, an entity shall disclose information that enables users to assess the extent to which the expected future cash flows associated with the asset are affected by the entity’s intent and/or ability to renew or extend the arrangement. This FSP is effective for financial statements issued for fiscal years and interim periods beginning after December 15, 2008. The FSP will not have a material impact on the Company’sDetroit Edison’s consolidated financial statements.
Disclosures about Derivative Instruments and Guarantees
In March 2008, the FASB issued SFASASC 815-10 (SFAS No. 161,Disclosures about Derivative Instruments and Hedging Activities — an amendment of FASB Statement No. 133133). This Statementstandard requires enhanced disclosures about an entity’s derivative and hedging activities. SFASactivities and thereby improves the transparency of financial reporting. Entities

30


are required to provide enhanced disclosures about (a) how and why an entity uses derivative instruments, (b) how derivative instruments and related hedged items are accounted for under ASC 815 (SFAS No. 161133) and its related interpretations, and (c) how derivative instruments and related hedged items affect an entity’s financial position, financial performance, and cash flows.
The standard is effective for financial statements issued for fiscal years and interim periods beginning after November 15, 2008, with early application encouraged. Comparative disclosures for earlier periods at initial adoption are encouraged but not required. The Company will adopt SFAS No. 161 onadopted the standard effective January 1, 2009. See Note 5.
Subsequent Events
In September 2008,May 2009, the FASB issued FSPASC 855 (SFAS No. 133-1165,Subsequent Events). This standard provides guidance on management’s assessment of subsequent events. The new standard clarifies that management must evaluate, as of each reporting period, events or transactions that occur after the balance sheet date “through the date that the financial statements are issued or are available to be issued.” Management must perform its assessment for both interim and FIN 45-4,Disclosures about Credit Derivativesannual financial reporting periods. The standard does not significantly change the Company’s practice for evaluating such events. ASC 855 (SFAS No. 165) is effective prospectively for interim and Certain Guarantees: An Amendmentannual periods ending after June 15, 2009 and requires disclosure of the date subsequent events are evaluated through. The Company adopted the standard during the quarter ended June 30, 2009. See Note 2.
Transfers of Financial Assets
In June 2009, the FASB issued ASU 2009-16 (SFAS No. 166,Accounting for Transfers of Financial Assets — an amendment of FASB Statement No. 133 and FASB Interpretation No. 45; and Clarification of the Effective Date of FASB Statement No. 161.140).This FSPstandard amends ASC 860, (SFAS No. 140), eliminates the concept of a “qualifying special-purpose entity” (QSPE) and associated guidance and creates more stringent conditions for reporting a transfer of a portion of a financial asset as a sale. ASU 2009-16 (SFAS No. 166) is intended to improve disclosures about credit derivatives by requiring more information aboutenhance reporting in the potential adverse effects of changes in credit risk on the financial position, financial performance, and cash flowswake of the sellers ofsubprime mortgage crisis and the deterioration in the global credit derivatives. This FSP also requires additional disclosures about the current status of the payment/performance risk of a guarantee.markets. The provisions of the FSP that amend SFAS No. 133 and FIN 45 arestandard is effective for reporting periods endingfinancial asset transfers occurring after the beginning of an entity’s first fiscal year that begins after November 15, 2008.2009. Early adoption is prohibited. ASU 2009-16 (SFAS No. 166) must be applied prospectively to transfers of financial assets occurring on or after its effective date. The FSP also clarifies that the disclosures required by SFASadoption of ASU 2009-16 (SFAS No. 161 should be provided for any reporting period (annual or interim) beginning after November 15, 2008. The Company has adopted these pronouncements as of December 31, 2008.166) will not have a material impact on Detroit Edison’s consolidated financial statements.
Noncontrolling Interests in Consolidated Financial StatementsVariable Interest Entities (VIE)
In December 2007,June 2009, the FASB issued SFASASU 2009-17 (SFAS No. 160,167,Noncontrolling Interests in Consolidated Financial Statements —Amendments to FASB Interpretation 46(R)). This standard amends the consolidation guidance that applies to VIEs and affects the overall consolidation analysis under ASC 810 -10 (Interpretation 46(R)). The amendments to the consolidation guidance affect all entities and enterprises currently within the scope of ASC 810-10, as well as qualifying special purpose entities that are currently outside the scope of ASC 810-10. Accordingly, the Company will need to reconsider its previous ASC 810-10 conclusions, including (1) whether an Amendmententity is a VIE, (2) whether the enterprise is the VIE’s primary beneficiary, and (3) what type of ARBfinancial statement disclosures are required. ASU 2009-17 (SFAS No. 51.This Statement establishes accounting and reporting standards for the noncontrolling interest in a subsidiary and for the deconsolidation of a subsidiary. It clarifies that a noncontrolling interest in a subsidiary167) is an ownership interest in the consolidated entity that should be reported as equity in the consolidated financial statements. SFAS No. 160 is effective for fiscal years, and interim periods within those years, beginning on or after December 15, 2008. Earlier adoption is prohibited. This Statement shall be applied prospectively as of the beginning of the first fiscal year in which this Statementthat begins after November 15, 2009. Early adoption is initially applied, exceptprohibited. The Company is currently assessing the impact of ASU 2009-17 (SFAS No. 167), however adoption of the standard is not expected to have a material impact to the consolidated financial statements.
Fair Value Measurements and Disclosures
In September and August 2009, respectively, the FASB issued ASU 2009-12,Fair Value Measurements and Disclosure,and ASU 2009-05,Measuring Liabilities at Fair Value.ASU 2009-12 provides guidance for the presentation and disclosure requirements which shall be applied retrospectively for all periods presented. The Company will adopt SFAS No. 160fair value measurement of investments in certain entities that calculate the net asset value per share (or its equivalent) determined as of January 1,the reporting entity’s measurement date. Certain attributes of the investment (such as restrictions on redemption) and transaction prices from principal-to-principal or brokered transactions will not be considered in measuring the fair value of the investment. The amendments in this standard are effective for interim and annual periods ending after December 15, 2009. Adoption

31


ASU 2009-05 provides guidance on measuring the fair value of SFAS No. 160 willliabilities under ASC 820. This standard clarifies that in the absence of a quoted price in an active market for an identical liability at the measurement date, companies may apply approaches that use the quoted price of an investment in the identical liability or similar liabilities traded as assets or other valuation techniques consistent with the fair-value measurement principles in ASC 820. The standard permits fair value measurements of liabilities that are based on the price that a company would pay to transfer the liability to a new obligor. It also permits a company to measure the fair value of liabilities using an estimate of the price it would receive to enter into the liability at that date. The new standard is effective for interim and annual periods beginning after August 27, 2009 and applies to all fair-value measurements of liabilities required by GAAP. The adoption of ASU 2009-12 and ASU 2009-05 did not have a material effectimpact on the Company’sDetroit Edison’s consolidated financial statements.
Employers’ Disclosures about Postretirement Benefit Plan Assets
On December 30, 2008,In January 2010, the FASB issued FASB Staff Position (FSP) FAS 132(R)-1,ASU 2010-06,Employers’Improving Disclosures about Postretirement Benefit Plan Assets.Fair Value MeasurementsThis FSP amends SFAS No. 132 (revised 2003),Employers’ Disclosures about Pensions. ASU 2010-06 requires the gross presentation of activity within the Level 3 fair value measurement roll forward and Other Postretirement Benefits,details of transfers in and out of Level 1 and 2 fair value measurements. The new disclosures are required of all entities that are required to provide guidance on an employer’s disclosures about plan assets of a defined benefit pension or other postretirement plan. The disclosure requirements required by this FSP arerecurring and nonrecurring fair value measurements. ASU 2010-06 is effective for fiscal years endinginterim and annual reporting periods beginning after December 15, 2009.2009, except for the gross presentation of the Level 3 fair value measurement roll forward which is effective for annual reporting periods beginning after December 15, 2010 and for interim reporting periods within those years.
Revenue Arrangements
In September 2009, the FASB ratified Issue No. 08-1,Revenue Arrangements with Multiple Deliverables (not yet codified).Issue 08-1 provides principles and application guidance on whether multiple deliverables exist, how the arrangement should be separated, and the consideration allocated. This standard shall be applied prospectively for revenue arrangements entered into or materially modified in fiscal years beginning on or after June 15, 2010, with earlier application permitted. Alternatively, an entity may elect to adopt this standard on a retrospective basis. The Company will adoptis currently assessing the impact of Issue No. 08-1 on Detroit Edison’s consolidated financial statements. Adoption of this FSPstandard is not expected to have a material impact to the consolidated financial statements.

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NOTE 4 — FAIR VALUE
Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date in a principal or most advantageous market. Fair value is a market-based measurement that is determined based on inputs, which refer broadly to assumptions that market participants’ use in pricing assets or liabilities. These inputs can be readily observable, market corroborated or generally unobservable inputs. The Company makes certain assumptions it believes that market participants would use in pricing assets or liabilities, including assumptions about risk, and the risks inherent in the inputs to valuation techniques. Credit risk of the Company and its counterparties is incorporated in the valuation of assets and liabilities through the use of credit reserves, the impact of which is immaterial for the years ended December 31, 2009.2009 and 2008. The Company believes it uses valuation techniques that maximize the use of observable market-based inputs and minimize the use of unobservable inputs.
Stock-Based Compensation
Effective January 1, 2006, our parent company, DTE Energy, adopted SFAS No. 123(R),Share-Based Payment,usingA fair value hierarchy has been established, which prioritizes the modified prospective transition method. We receive an allocation of costs associated with stock compensationinputs to valuation techniques used to measure fair value in three broad levels. The fair value hierarchy gives the highest priority to quoted prices (unadjusted) in active markets for identical assets or liabilities (Level 1) and the related impactlowest priority to unobservable inputs (Level 3). In some cases, the inputs used to measure fair value might fall in different levels of cumulative accounting adjustments. Our allocationthe fair value hierarchy. All assets and liabilities are required to be classified in their entirety based on the lowest level of input that is significant to the fair value measurement in its entirety. Assessing the significance of a particular input may require judgment considering factors specific to the asset or liability, and may affect the valuation of the asset or liability and its placement within the fair value hierarchy. The Company classifies fair value balances based on the fair value hierarchy defined as follows:
Level 1 — Consists of unadjusted quoted prices in active markets for 2008, 2007identical assets or liabilities that the Company has the ability to access as of the reporting date.
Level 2 — Consists of inputs other than quoted prices included within Level 1 that are directly observable for the asset or liability or indirectly observable through corroboration with observable market data.
Level 3 — Consists of unobservable inputs for assets or liabilities whose fair value is estimated based on internally developed models or methodologies using inputs that are generally less readily observable and 2006supported by little, if any, market activity at the measurement date. Unobservable inputs are developed based on the best available information and subject to cost-benefit constraints.
The following table presents assets and liabilities measured and recorded at fair value on a recurring basis as of December 31, 2009:
                 
              Net Balance at 
(in Millions) Level 1  Level 2  Level 3  December 31, 2009 
Assets:
                
Cash equivalents $15  $  $  $15 
Nuclear decommissioning trusts and other investments  589   325      914 
Derivative assets        2   2 
             
Total $604  $325  $2  $931 
             
Liabilities:
                
Derivative liabilities     (8)     (8)
             
Total $  $(8) $  $(8)
             
                 
Net Assets at December 31, 2009 $604  $317  $2  $923 
             

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The following table presents the fair value reconciliation of Level 3 assets and liabilities measured at fair value on a recurring basis for the years ended December 31, 2009 and 2008:
         
  Year Ended 
  December 31 
(in Millions) 2009  2008 
Asset balance as of beginning of period $4   4 
Changes in fair value recorded in regulatory assets/liabilities     2 
Purchases, issuances and settlements     (2)
Transfers in/out of Level 3  (2)   
       
Asset balance as of December 31 $2  $4 
       
The amount of total gains (losses) included in regulatory assets and liabilities attributed to the change in unrealized gains (losses) related to regulatory assets and liabilities held at December 31, 2009 and 2008 $2  $ 
       
Transfers in/out of Level 3 represent existing assets or liabilities that were either previously categorized as a higher level and for which the inputs to the model become unobservable or assets and liabilities that were previously classified as Level 3 for which the lowest significant input became observable during the period. Transfers in/out of Level 3 are reflected as if they had occurred at the beginning of the period. Transfers out of Level 3 in 2009 reflect a change in the significance of unobservable inputs and an increased reliance on broker quotes for certain transactions.
Cash Equivalents
Cash equivalents include investments with maturities of three months or less when purchased. The cash equivalents shown in the fair value table are comprised of investments in money market funds. The fair values of the shares of these funds are based on observable market prices and, therefore, have been categorized as Level 1 in the fair value hierarchy.
Nuclear Decommissioning Trusts and Other Investments
The nuclear decommissioning trust fund investments have been established to satisfy Detroit Edison’s nuclear decommissioning obligations. The nuclear decommissioning trusts and other fund investments hold debt and equity securities directly and indirectly through commingled funds and institutional mutual funds. Exchange-traded debt and equity securities held directly are valued using quoted market prices on actively traded markets. The commingled funds and institutional mutual funds which hold exchange-traded equity or debt securities are valued based on the underlying securities, using quoted prices in actively traded markets. Non-exchange-traded fixed income securities are valued based upon quotations available from brokers or pricing services. For non-exchange traded fixed income securities, the trustees receive prices from pricing services. A primary price source is identified by asset type, class or issue for each security. The trustees monitor prices supplied by pricing services and may use a supplemental price source or change the primary price source of a given security if the trustees challenge an assigned price and determine that another price source is considered to be preferable. Detroit Edison has obtained an understanding of how these prices are derived, including the nature and observability of the inputs used in deriving such prices. Additionally, Detroit Edison selectively corroborates the fair values of securities by comparison of market-based price sources.
Derivative Assets and Liabilities
Derivative assets and liabilities are comprised of physical and financial derivative contracts, including futures, forwards, options and swaps that are both exchange-traded and over-the-counter traded contracts. Various inputs are used to value derivatives depending on the type of contract and availability of market data. Exchange-traded derivative contracts are valued using quoted prices in active markets. The Company considers the following criteria in determining whether a market is considered active: frequency in which pricing information is updated, variability in pricing between sources or over time and the availability of public information. Other derivative contracts are valued based upon a variety of inputs including commodity market prices, broker quotes, interest rates, credit ratings, default rates, market-based seasonality and basis differential factors. The Company monitors the prices that

34


stock-based compensationare supplied by brokers and pricing services and may use a supplemental price source or change the primary price source of an index if prices become unavailable or another price source is determined to be more representative of fair value. The Company has obtained an understanding of how these prices are derived. Additionally, the Company selectively corroborates the fair value of its transactions by comparison of market-based price sources. Mathematical valuation models are used for derivatives for which external market data is not readily observable, such as contracts which extend beyond the actively traded reporting period.
Fair Value of Financial Instruments
The fair value of long-term debt is determined by using quoted market prices when available and a discounted cash flow analysis based upon estimated current borrowing rates when quoted market prices are not available. The table below shows the fair value relative to the carrying value for long-term debt securities. Certain other financial instruments, such as notes payable, customer deposits and notes receivable are not shown as carrying value approximates fair value. See Note 5 for further fair value information for financial and derivative instruments.
December 31, 2009December 31, 2008
Fair ValueCarrying ValueFair ValueCarrying Value
Long-Term Debt$5.2 billion$5.0 billion$5.0 billion$5.2 billion
Investments in Debt and Equity Securities
The Company generally classifies investments in debt and equity securities as either trading or available-for-sale and has recorded such investments at market value with unrealized gains or losses included in earnings or in other comprehensive income or loss, respectively. Changes in the fair value of Fermi 2 nuclear decommissioning investments are recorded as adjustments to regulatory assets or liabilities, due to a recovery mechanism from customers. The Company’s investments are reviewed for impairment each reporting period. If the assessment indicates that the impairment is other than temporary, a loss is recognized resulting in the investment being written down to its estimated fair value.
Nuclear Decommissioning Trust Funds
Detroit Edison has a legal obligation to decommission its nuclear power plants following the expiration of their operating licenses. This obligation is reflected as an asset retirement obligation on the Consolidated Statements of Financial Position. See Note 8 for additional information.
The NRC has jurisdiction over the decommissioning of nuclear power plants and requires decommissioning funding based upon a formula. The MPSC and FERC regulate the recovery of costs of decommissioning nuclear power plants and both require the use of external trust funds to finance the decommissioning of Fermi 2. Rates approved by the MPSC provide for the recovery of decommissioning costs of Fermi 2 and the disposal of low-level radioactive waste. Detroit Edison is continuing to fund FERC jurisdictional amounts for decommissioning even though explicit provisions are not included in FERC rates. The Company believes the MPSC and FERC collections will be adequate to fund the estimated cost of decommissioning using the NRC formula. The decommissioning assets, anticipated earnings thereon and future revenues from decommissioning collections will be used to decommission Fermi 2. The Company expects the liabilities to be reduced to zero at the conclusion of the decommissioning activities. If amounts remain in the trust funds for Fermi 2 following the completion of the decommissioning activities, those amounts will be disbursed based on rulings by the MPSC and FERC.
The decommissioning of Fermi 1 is funded by Detroit Edison. Contributions to the Fermi 1 trust are discretionary.
The following table summarizes the fair value of the nuclear decommissioning trust fund assets:
         
  December 31  December 31 
(in Millions) 2009  2008 
Fermi 2 $790  $649 
Fermi 1  3   3 
Low level radioactive waste  24   33 
       
Total $817  $685 
       

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At December 31, 2009, investments in the nuclear decommissioning trust funds consisted of approximately 51% in publicly traded equity securities, 48% in fixed debt instruments and 1% in cash equivalents. At December 31, 2008, investments in the nuclear decommissioning trust funds consisted of approximately 42% in publicly traded equity securities, 57% in fixed debt instruments and 1% in cash equivalents. The debt securities at both December 31, 2009 and December 31, 2008 had an average maturity of approximately 5 years.
The costs of securities sold are determined on the basis of specific identification. The following table sets forth the gains and losses and proceeds from the sale of securities by the nuclear decommissioning trust funds:
             
  Year Ended December 31
  2009 2008 2007
(in Millions)          
Realized gains $37  $34  $25 
Realized losses $(55) $(49) $(17)
Proceeds from sales of securities $295  $232  $286 
Realized gains and losses from the sale of securities for the Fermi 2 and the low level radioactive waste funds are recorded to the asset retirement obligation regulatory asset and nuclear decommissioning liability. The following table sets forth the fair value and unrealized gains for the nuclear decommissioning trust funds:
         
(in Millions)      
As of December 31, 2009    
Equity securities $420  $135 
Debt securities  388   17 
Cash and cash equivalents  9    
       
  $817  $152 
       
 
As of December 31, 2008    
Equity securities $288  $65 
Debt securities  388   17 
Cash and cash equivalents  9    
       
  $685  $82 
       
Securities held in the nuclear decommissioning trust funds are classified as available-for-sale. As Detroit Edison does not have the ability to hold impaired investments for a period of time sufficient to allow for the anticipated recovery of market value, all unrealized losses are considered to be other than temporary impairments.
Impairment charges for unrealized losses incurred by the Fermi 2 trust are recognized as a regulatory asset. Detroit Edison recognized $48 million and $92 million of unrealized losses as regulatory assets at December 31, 2009 and 2008, respectively. Since the decommissioning of Fermi 1 is funded by Detroit Edison rather than through a regulatory recovery mechanism, there is no corresponding regulatory asset treatment. Therefore, impairment charges for unrealized losses incurred by the Fermi 1 trust are recognized in earnings immediately. There were no impairment charges in 2009 and 2008 for Fermi 1. Detroit Edison recognized impairment charges of $0.2 million for Fermi 1 for the year ended December 31, 2007.
Other Available-For-Sale Securities
The following table summarizes the fair value of the Company’s investment in available-for-sale debt and equity securities, excluding nuclear decommissioning trust fund assets:
                 
  December 31, 2009 December 31, 2008
(in Millions) Fair Value Carrying value Fair Value Carrying Value
Cash equivalents $105  $105  $98  $98 
Equity securities $4  $4  $20  $20 
At December 31, 2009 and 2008, these securities are comprised primarily of money-market and equity securities. Gains (losses) related to trading securities held at December 31, 2009, 2008, and 2007 were $8 million, $(14) million and $3 million respectively.

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NOTE 5 — FINANCIAL AND OTHER DERIVATIVE INSTRUMENTS
The Company recognizes all derivatives on the Consolidated Statements of Financial Position at their fair value unless they qualify for certain scope exceptions, including the normal purchases and normal sales exception. Further, derivatives that qualify and are designated for hedge accounting are classified as either hedges of a forecasted transaction or the variability of cash flows to be received or paid related to a recognized asset or liability (cash flow hedge), or as hedges of the fair value of a recognized asset or liability or of an unrecognized firm commitment (fair value hedge). For cash flow hedges, the portion of the derivative gain or loss that is effective in offsetting the change in the value of the underlying exposure is deferred in Accumulated other comprehensive income and later reclassified into earnings when the underlying transaction occurs. For fair value hedges, changes in fair values for the derivative are recognized in earnings each period. Gains and losses from the ineffective portion of any hedge are recognized in earnings immediately. For derivatives that do not qualify or are not designated for hedge accounting, changes in the fair value are recognized in earnings each period.
The Company’s primary market risk exposure is associated with commodity prices, credit and interest rates. The Company has risk management policies to monitor and manage market risks. The Company uses derivative instruments to manage some of the exposure. Contracts the Company typically classifies as derivative instruments include power, certain coal forwards, futures, options and swaps.
Detroit Edison generates, purchases, distributes and sells electricity. Detroit Edison uses forward energy and capacity contracts to manage changes in the price of electricity and fuel. Substantially all of these contracts meet the normal purchases and sales exemption and are therefore accounted for under the accrual method. Other derivative contracts are recoverable through the PSCR mechanism when settled. This results in the deferral of unrealized gains and losses as Regulatory assets or liabilities, until realized.
The following represents the fair value of derivative instruments as of December 31, 2009:
         
  Balance Sheet  Fair 
  Location  Value 
(in Millions)      
FTRs Other current assets $2 
Emissions Other current liabilities  (5)
Emissions Other non-current liabilities  (3)
        
Total derivatives not designated as hedging instrument
     $(6)
        
         
Total derivatives:
        
Current     $(3)
Noncurrent      (3)
        
Total derivatives as reported
     $(6)
        
The effect of derivative instruments recoverable through the PSCR mechanism when realized on the Consolidated Statements of Financial Position for the year ended December 31, 2009 is as follows:
         
      Year Ended 
  Location of Gain  Gain (Loss) 
  (Loss) Recognized  Recognized in 
  in Regulatory  Regulatory Assets 
  Assets / Liabilities  / Liabilities on 
  On Derivative  Derivative 
(in Millions)      
FTRs and Emissions Regulatory Asset $(14)
FTRs and Emissions Regulatory Liability  (2)
        
Total
     $(16)
        

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The following represents the cumulative gross volume of derivative contracts outstanding as of December 31, 2009:
CommodityNumber of Units
Emissions (Tons)61,927
FTRs (MW)4,486
NOTE 6 — PROPERTY, PLANT AND EQUIPMENT
Summary of property by classification as of December 31:
         
(in Millions) 2009  2008 
Property, Plant and Equipment
        
Generation $8,833  $8,544 
Distribution  6,618   6,433 
       
Total  15,451   14,977 
       
         
Less Accumulated Depreciation and Amortization
        
Generation  (3,890)  (3,690)
Distribution  (2,243)  (2,138)
       
Total  (6,133)  (5,828)
       
Net Property, Plant and Equipment
 $9,318  $9,149 
       
AFUDC capitalized during 2009 and 2008 was approximately $12 million and $44 million, respectively.
The composite depreciation rate for Detroit Edison was 3.3% in 2009, 2008 and 2007.
The average estimated useful life for our generation and distribution property was 40 years and 37 years, respectively, at December 31, 2009.
Capitalized software costs amortization expense was approximately $15$55 million $13in 2009, $45 million in 2008, and $31 million in 2007. The gross carrying amount and accumulated amortization of capitalized software costs at December 31, 2009 were $488 million and $14$161 million, respectively. The cumulative effectgross carrying amount and accumulated amortization of capitalized software costs at December 31, 2008 were $454 million and $126 million, respectively. Amortization expense of capitalized software costs is estimated to be $60 million annually for 2010 through 2014.
Gross property under capital leases was $121 million at December 31, 2009 and December 31, 2008. Accumulated amortization of property under capital leases was $88 million and $80 million at December 31, 2009 and December 31, 2008, respectively.

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NOTE 7 — JOINTLY OWNED UTILITY PLANT
Detroit Edison has joint ownership interest in two power plants, Belle River and Ludington Hydroelectric Pumped Storage. Detroit Edison’s share of direct expenses of the adoptionjointly owned plants are included in Fuel, purchased power and gas and Operation and maintenance expenses in the Consolidated Statements of SFAS 123(R)Operations. Ownership information of the two utility plants as of December 31, 2009 was as follows:
         
      Ludington
      Hydroelectric
  Belle River Pumped Storage
In-service date  1984-1985   1973 
Total plant capacity  1,260 MW  1,872 MW
Ownership interest   *  49%
Investment (in Millions) $1,626  $197 
Accumulated depreciation (in Millions) $889  $128 
Detroit Edison’s ownership interest is 63% in Unit No. 1, 81% of the facilities applicable to Belle River used jointly by the Belle River and St. Clair Power Plants and 75% in common facilities used at Unit No. 2.
Belle River
The Michigan Public Power Agency (MPPA) has an increaseownership interest in net incomeBelle River Unit No. 1 and other related facilities. The MPPA is entitled to 19% of $1 million. the total capacity and energy of the plant and is responsible for the same percentage of the plant’s operation, maintenance and capital improvement costs.
Ludington Hydroelectric Pumped Storage
Consumers Energy Company has an ownership interest in the Ludington Hydroelectric Pumped Storage Plant. Consumers Energy is entitled to 51% of the total capacity and energy of the plant and is responsible for the same percentage of the plant’s operation, maintenance and capital improvement costs.

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NOTE 8 — ASSET RETIREMENT OBLIGATIONS
The cumulative effect adjustment was dueCompany has a legal retirement obligation for the decommissioning costs for its Fermi 1 and Fermi 2 nuclear plants. The Company has conditional retirement obligations for disposal of asbestos at certain of its power plants. To a lesser extent, the Company has conditional retirement obligations at certain service centers and disposal costs for PCB contained within transformers and circuit breakers. The Company recognizes such obligations as liabilities at fair market value when they are incurred, which generally is at the time the associated assets are placed in service. Fair value is measured using expected future cash outflows discounted at our credit-adjusted risk-free rate. In its regulated operations, the Company defers timing differences that arise in the expense recognition of legal asset retirement costs that are currently recovered in rates.
No liability has been recorded with respect to lead-based paint, as the quantities of lead-based paint in the Company’s facilities are unknown. In addition, there is no incremental cost to demolitions of lead-based paint facilities vs. non-lead-based paint facilities and no regulations currently exist requiring any type of special disposal of items containing lead-based paint.
The Ludington Hydroelectric Power Plant (a jointly owned plant) has an indeterminate life and no legal obligation currently exists to decommission the plant at some future date. Substations, manholes and certain other distribution assets within Detroit Edison have an indeterminate life. Therefore, no liability has been recorded for these assets.
A reconciliation of the asset retirement obligations for 2009 follows:
     
(in Millions)    
Asset retirement obligations at January 1, 2009 $1,226 
Accretion  80 
Liabilities settled  (10)
Revision in estimated cash flows  4 
    
Asset retirement obligations at December 31, 2009  1,300 
Less amount included in current liabilities  (15)
    
  $1,285 
    
Detroit Edison has a legal obligation to decommission its nuclear power plants following the expiration of their operating licenses. This obligation is reflected as an asset retirement obligation on the Consolidated Statements of Financial Position. Based on the actual or anticipated extended life of the nuclear plant, decommissioning expenditures for Fermi 2 are expected to be incurred primarily during the period of 2025 through 2050. It is estimated that the cost of decommissioning Fermi 2, when its license expires in 2025, will be $1.3 billion in 2009 dollars and $3.4 billion in 2025 dollars, using a 6% inflation rate. In 2001, Detroit Edison began the decommissioning of Fermi 1, with the goal of removing the radioactive material and terminating the Fermi 1 license. The decommissioning of Fermi 1 is expected to be completed by 2012. Approximately $1.2 billion of the asset retirement obligations represent nuclear decommissioning liabilities that are funded through a surcharge to electric customers over the life of the Fermi 2 nuclear plant.
The NRC has jurisdiction over the decommissioning of nuclear power plants and requires decommissioning funding based upon a formula. The MPSC and FERC regulate the recovery of costs of decommissioning nuclear power plants and both require the use of external trust funds to finance the decommissioning of Fermi 2. Rates approved by the MPSC provide for the recovery of decommissioning costs of Fermi 2 and the disposal of low-level radioactive waste. Detroit Edison is continuing to fund FERC jurisdictional amounts for decommissioning even though explicit provisions are not included in FERC rates. The Company believes the MPSC and FERC collections will be adequate to fund the estimated cost of decommissioning using the NRC formula. The decommissioning assets, anticipated earnings thereon and future revenues from decommissioning collections will be used to decommission Fermi 2. The Company expects the liabilities to be reduced to zero at the conclusion of the decommissioning activities. If amounts remain in the trust funds for Fermi 2 following the completion of the decommissioning activities, those amounts will be disbursed based on rulings by the MPSC and FERC.
A portion of the funds recovered through the Fermi 2 decommissioning surcharge and deposited in external trust accounts is designated for the removal of non-radioactive assets and the clean-up of the Fermi site. This removal and

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clean-up is not considered a legal liability. Therefore, it is not included in the asset retirement obligation, but is reflected as the nuclear decommissioning liability.
The decommissioning of Fermi 1 is funded by Detroit Edison. Contributions to the estimation and subsequent allocationFermi 1 trust are discretionary. See Note 4 for additional discussion of forfeitures for previously granted stock awards and performance shares.Nuclear Decommissioning Trust Fund Assets.
NOTE 39 — RESTRUCTURING
Performance Excellence Process
In 2005, the Company initiated a company-wide review of its operations called the Performance Excellence Process. Specifically, the Company began a series of focused improvement initiatives within Detroit Edison and associated corporate support functions.
The Company incurred costs to achieve (CTA) restructuring expense for employee severance and other costs. Other costs include project management and consultant support. PursuantIn September 2006, the MPSC issued an order approving a settlement agreement that allows Detroit Edison, commencing in 2006, to MPSC authorization,defer the incremental CTA. Further, the order provides for Detroit Edison to amortize the CTA deferrals over a ten-year period beginning inwith the third quarter of 2006,year subsequent to the year the CTA was deferred. Detroit Edison deferred approximately $102$24 million and $54 million of CTA in 2006. Detroit Edison began amortizing deferred 2006 costs in2008 and 2007 as thea regulatory asset. The recovery of these costs was provided for by the MPSC.MPSC in the order approving the settlement in the show cause proceeding and in the December 23, 2008 MPSC rate order. Amortization expenseof prior year deferred CTA costs amounted to $18 million in 2009, $16 million in 2008 and $10 million in 2008 and 2007, respectively. Detroit Edison deferred $24 million of CTA during 2008 and $54 million during 2007. See Note 4.
Amounts expensed are recorded in the Operation and maintenance line on the Consolidated StatementStatements of Operations. Deferred amounts are recorded in the regulatory asset lineRegulatory assets on the Consolidated StatementStatements of Financial Position.
Costs incurred in 2008 2007 and 20062007 are as follows:
                                          
 Employee Severance Costs(1) Other Costs Total Cost Employee Severance Costs(1) Other Costs Total Cost 
(in Millions) 2008 2007 2006 2008 2007 2006 2008 2007 2006 2008 2007 2008 2007 2008 2007 
                   
Costs incurred: $ $15 $51 $26 $50 $56 $26 $65 $107 $ $15 $26 $50 $26 $65 
Less amounts deferred or capitalized:  15 51 26 50 56 26 65 107  15 26 50 26 65 
                                
Amount expensed $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 
                                
 
(1) Includes corporate allocations

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NOTE 410 — REGULATORY MATTERS
Regulation
Detroit Edison is subject to the regulatory jurisdiction of the MPSC, which issues orders pertaining to rates, recovery of certain costs, including the costs of generating facilities and regulatory assets, conditions of service, accounting and operating-related matters. Detroit Edison is also regulated by the FERC with respect to financing authorization and wholesale electric activities. Regulation results in differences in the application of generally accepted accounting principles between regulated and non-regulated businesses.
Regulatory Assets and Liabilities
Detroit Edison applies the provisions of SFAS No. 71,Accounting for the Effects of Certain Types of Regulation,is required to its operations. SFAS No. 71 requires the recording ofrecord regulatory assets and liabilities for certain transactions that would have been treated as revenue andor expense in non-regulated businesses.
Continued applicability of SFAS No. 71regulatory accounting treatment requires that rates be designed to recover specific costs of providing regulated services and be charged to and collected from customers. Future regulatory changes or changes in the competitive environment could result in the Company discontinuing the applicationdiscontinuance of SFAS No. 71this accounting treatment for regulatory assets and liabilities for some or all of its businessour businesses and may require the write-off of the portion of any regulatory asset or liability that was no longer probable of recovery through regulated rates. Management believes that currently available facts support the continued applicationuse of SFAS No. 71.regulatory assets and liabilities and that all regulatory assets and liabilities are recoverable or refundable in the current rate environment.

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The following are balances and a brief description of the regulatory assets and liabilities at December 31:
                
(in Millions) 2008 2007  2009 2008 
    
Assets
  
Securitized regulatory assets $1,001 $1,124 
     
Recoverable income taxes related to securitized regulatory assets 549 616 
Recoverable pension and postretirement cost 
Recoverable pension and postretirement costs: 
Pension 1,133 469  $1,261 $1,133 
Postretirement costs 609 405  515 609 
Recoverable income taxes related to securitized regulatory assets 476 549 
Asset retirement obligation 452 266  415 452 
Deferred income taxes — Michigan Business Tax 343 336 
Costs to achieve Performance Excellence Process 136 154 
Other recoverable income taxes 89 94  89 89 
Enterprise Business Systems costs 24 26 
Recoverable costs under PA 141  
Excess capital expenditures 4 11 
Unamortized loss on reacquired debt 38 40 
Electric Customer Choice implementation costs 18 37 
Deferred Clean Air Act expenditures 10 28   10 
Midwest Independent System Operator charges 8 23 
Electric Customer Choice implementation costs 37 58 
Enhanced security costs 6 10 
Unamortized loss on reacquired debt 40 38 
Accrued PSCR revenue 20 75   20 
Costs to achieve Performance Excellence Process 154 146 
Enterprise Business Systems costs 26 26 
Deferred income taxes — Michigan Business Tax 336 318 
Other 3 3  18 21 
          
 3,476 2,586  3,333 3,476 
Less amount included in current assets  (20)  (75)   (20)
          
 $3,456 $2,511  $3,333 $3,456 
          
  
Securitized regulatory assets $870 $1,001 
     
 
Liabilities
  
Deferred income taxes — Michigan Business Tax $367 $335 
Asset removal costs $182 $218  157 182 
Accrued pension 72 43  75 72 
Renewable energy program 32  
Refundable costs under PA 141 27 16 
Refundable self implemented rates 27  
Refundable restoration expense 15  
Accrued PSCR refund 11   14 11 
Refundable costs under PA 141 16 
Fermi 2 refueling outage 25 4  13 25 
Deferred income taxes — Michigan Business Tax 335 318 
Other 4 5  11 4 
          
 645 588  738 645 
Less amount included in current liabilities  (52)  (5)  (27)  (52)
          
 $593 $583  $711 $593 
          

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As noted below, regulatory assets for which costs have been incurred have been included (or are expected to be included, for costs incurred subsequent to the most recently approved rate case) in Detroit Edison’s rate base, thereby providing a return on invested costs. Certain regulatory assets do not result from cash expenditures and therefore do not represent investments included in rate base or have offsetting liabilities that reduce rate base.
ASSETS
 Securitized regulatory assetsRecoverable pension and postretirement costsThe net book balanceIn 2007, the Company adopted ASC 715 (SFAS No. 158) which required, among other things, the recognition in other comprehensive income of the Fermi 2 nuclear plant was written off in 1998actuarial gains or losses and an equivalentthe prior service costs that arise during the period but that are not immediately recognized as components of net periodic benefit costs. The Company records the charge related to the additional liability as a regulatory asset was established. In 2001,since the Fermi 2 regulatorytraditional rate setting process allows for the recovery of pension and postretirement costs. The asset and certain other regulatory assets were securitized pursuant to PA 142 and an MPSC order. A non-bypassable securitization bond surcharge recoverswill reverse as the securitized regulatory asset over a fourteen-year period endingdeferred items are recognized as benefit expenses in 2015.net income. (1)
 
 Recoverable income taxes related to securitized regulatory assets— Receivable for the recovery of income taxes to be paid on the non-bypassable securitization bond surcharge. A non-bypassable securitization tax surcharge recovers the income tax over a fourteen-year period ending 2015.
 
 Recoverable pension and postretirement costs— In 2007, the Company adopted SFAS No. 158 which required, among other things, the recognition in other comprehensive income of the actuarial gains or losses and the prior

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service costs that arise during the period but that are not immediately recognized as components of net periodic benefit costs. The Company received approval from the MPSC to record the charge related to the additional liability as a regulatory asset since the traditional rate setting process allows for the recovery of pension and postretirement costs. The asset will reverse as the deferred items are recognized as benefit expenses in net income. (1)
Asset retirement obligationAsset retirement obligations were recorded pursuant to adoption of SFAS No. 143 and FIN 47. These obligations areThis obligation is primarily for Fermi 2 decommissioning costs. The asset captures the timing differences between expense recognition and current recovery in rates and will reverse over the remaining life of the related plant. (1)
Other recoverable income taxes— Income taxes receivable from Detroit Edison’s customers representing the difference in property-related deferred income taxes receivable and amounts previously reflected in Detroit Edison’s rates. This asset will reverse over the remaining life of the related plant. (1)
Excess capital expenditures— PA 141 permits, after MPSC authorization, the recovery of and a return on capital expenditures that exceed a base level of depreciation expense.
Deferred Clean Air Act expenditures— PA 141 permits, after MPSC authorization, the recovery of and a return on Clean Air Act expenditures.
Midwest Independent System Operator charges— PA 141 permits, after MPSC authorization, the recovery of and a return on charges from a regional transmission operator such as the Midwest Independent System Operator.
Electric Customer Choice implementation costs— PA 141 permits, after MPSC authorization, the recovery of and a return on costs incurred associated with the implementation of the electric Customer Choice program.
Enhanced security costs —PA 609 of 2002 permits, after MPSC authorization, the recovery of enhanced security costs for an electric generating facility.
Unamortized loss on reacquired debt— The unamortized discount, premium and expense related to debt redeemed with a refinancing are deferred, amortized and recovered over the life of the replacement issue.
Accrued PSCR revenue— Receivable for the temporary under-recovery of and a return on fuel and purchased power costs incurred by Detroit Edison which are recoverable through the PSCR mechanism.
Cost to achieve Performance Excellence Process (PEP)— The MPSC authorized the deferral of costs to implement the PEP. These costs consist of employee severance, project management and consultant support. These costs will be amortized over a ten-year period beginning with the year subsequent to the year the costs were deferred.
Enterprise Business Systems (EBS) costs— The MPSC approved the deferral and amortization over 10 years beginning in January 2009 of EBS costs that would otherwise be expensed. (1)
 
 Deferred income taxes — Michigan Business Tax (MBT)— In July 2007, the MBT was enacted by the State of Michigan. State deferred tax liabilities were established for the Company’s utilities, and offsetting regulatory assets were recorded as the impacts of the deferred tax liabilities will be reflected in rates as the related taxable temporary differences reverse and flow through current income tax expense. (1)
Cost to achieve Performance Excellence Process (PEP)— The MPSC authorized the deferral of costs to implement the PEP. These costs consist of employee severance, project management and consultant support. These costs will be amortized over a ten-year period beginning with the year subsequent to the year the costs were deferred. (1)
Other recoverable income taxes— Income taxes receivable from Detroit Edison’s customers representing the difference in property-related deferred income taxes receivable and amounts previously reflected in Detroit Edison’s rates. This asset will reverse over the remaining life of the related plant. (1)
Enterprise Business Systems (EBS) costs— The MPSC approved the deferral and amortization over 10 years beginning in January 2009 of EBS costs that would otherwise be expensed. (1)
Unamortized loss on reacquired debt— The unamortized discount, premium and expense related to debt redeemed with a refinancing are deferred, amortized and recovered over the life of the replacement issue. (1)
Electric Customer Choice implementation costs— PA 141 permits, after MPSC authorization, the recovery of and a return on costs incurred associated with the implementation of the electric Customer Choice program.
Deferred Clean Air Act expenditures— PA 141 permits, after MPSC authorization, the recovery of and a return on Clean Air Act expenditures.
Accrued PSCR revenue— Receivable for the temporary under-recovery of and a return on fuel and purchased power costs incurred by Detroit Edison which are recoverable through the PSCR mechanism.
Securitized regulatory assets— The net book balance of the Fermi 2 nuclear plant was written off in 1998 and an equivalent regulatory asset was established. In 2001, the Fermi 2 regulatory asset and certain other regulatory assets were securitized pursuant to PA 142 and an MPSC order. A non-bypassable securitization bond surcharge recovers the securitized regulatory asset over a fourteen-year period ending in 2015.
 
(1) Regulatory assets not earning a return.
(1)Regulatory assets not earning a return.

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LIABILITIES
Deferred income taxes — Michigan Business Tax —In July 2007, the MBT was enacted by the State of Michigan. State deferred tax assets were established for the Company’s utilities, and offsetting regulatory liabilities were recorded as the impacts of the deferred tax assets will be reflected in rates.
 Asset removal costs— The amount collected from customers for the funding of future asset removal activities.
 
 Accrued pension— Pension expense refundable to customers representing the difference created from volatility in the pension obligation and amounts recognized pursuant to MPSC authorization.
 
 Accrued PSCR refundRenewable energy —— Payable for the temporary over-recoveryAmounts collected in rates in excess of and a return on power supply costs and transmission costs incurred by Detroit Edison which are recoverable through the PSCR mechanism.renewable energy expenditures.
 
 Refundable costs under PA 141 —Detroit Edison’s 2007 Choice Incentive Mechanism (CIM) reconciliation and allocation resulted in the elimination of Regulatory Asset Recovery Surcharge (RARS) balances for commercial and industrial customers. RARS revenues received in 2008 that exceed the regulatory asset balances are required to be refunded to the affected classes.
 
 Refundable self implemented rates —Amounts due customers for self implemented rates in excess of amounts provided for in January 2010 Detroit Edison MPSC order.
Refundable restoration expense —Amounts refundable for the MPSC approved restoration expenses tracking mechanism that tracks the difference between actual restoration expense and the amount provided for in base rates, recognized pursuant to the MPSC authorization.
Accrued PSCR refund— Liability for the temporary over-recovery of and a return on power supply costs and transmission costs incurred by Detroit Edison which are recoverable through the PSCR mechanism.
Fermi 2 refueling outage— Accrued liability for refueling outage at Fermi 2 pursuant to MPSC authorization.
Deferred income taxes — Michigan Business Tax —In July 2007, the MBT was enacted by the State of Michigan. State deferred tax assets were established for the Company’s utilities, and offsetting regulatory liabilities were recorded as the impacts of the deferred tax assets will be reflected in rates.
MPSC Show Cause Order
In March 2006, the MPSC issued an order directing Detroit Edison to show cause by June 1, 2006 why its rates should not be reduced in 2007. Subsequently, Detroit Edison filed its response to this order and the MPSC issued an order approving a settlement agreement in this proceeding on August 31, 2006. The order provided for an annualized rate reduction of $53 million for 2006, effective September 5, 2006. Beginning January 1, 2007, and continuing until April 13, 2008, one year from the filing of the general rate case on April 13, 2007, rates were reduced by an additional $26 million, for a total reduction of $79 million annually. The revenue reduction is net of the recovery of the amortization of the costs associated with the implementation of the Performance Excellence Process. The settlement agreement provided for some level of realignment of the existing rate structure by allocating a larger percentage share of the rate reduction to the commercial and industrial customer classes than to the residential customer classes.
As part of the settlement agreement, a CIM was established with a base level of electric choice sales set at 3,400 GWh. The CIM prescribes regulatory treatment of changes in non-fuel revenue attributed to increases or decreases in electric Customer Choice sales. If electric Customer Choice sales exceed 3,600 GWh, Detroit Edison will be able to recover 90% of its reduction in non-fuel revenue from full service customers, up to $71 million. If electric Customer Choice sales fall below 3,200 GWh, Detroit Edison will credit 100% of the increase in non-fuel revenue to the unrecovered regulatory asset balance. In March 2008, Detroit Edison filed a reconciliation of its CIM for the year 2007. Detroit Edison’s annual Electric Choice sales for 2007 were 2,239 GWh which was below the base level of sales of 3,200 GWh. Accordingly, the Company used the resulting additional non-fuel revenue to reduce unrecovered regulatory asset balances related to the RARS mechanism. This reconciliation did not result in any rate increase.
In November 2008, a settlement was filed in the 2007 CIM reconciliation. In the settlement, the parties agreed that the Detroit Edison 2007 CIM reconciliation and allocation filing was correct. All RARS revenues received in 2008 that exceed the regulatory asset balances will be refunded to the affected customer classes, and the only remaining classes to be reconciled in the RARS reconciliation case are the Residential and Special Manufacturing Contract classes. On January 13, 2009 the MPSC issued an order approving the settlement agreement.

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2007 Electric Rate Case Filing
Pursuant to the February 2006 MPSC order in Detroit Edison’s rate restructuring case and the August 2006 MPSC order in the settlement of the show cause case, Detroit Edison filed a general rate case on April 13, 2007 based on a 2006 historical test year. Supplements and updates were filed on August 31, 2007 and February 20, 2008.
On December 23, 2008,January 11, 2010, the MPSC issued an order in Detroit Edison’s February 20, 2008 updatedJanuary 26, 2009 rate case filing. The MPSC approved an annual revenue increase of $84$217 million effective January 14, 2009 or 2.0% averagea 4.8% increase in Detroit Edison’s annual revenue requirement for 2009.2010. Included in the approved $84 million increase in revenues iswas a return on equity of 11% on an expected 49% equity and 51% debt capital structure. Since the final rate relief ordered was less than the Company’s self-implemented rate increase of $280 million effective on July 26, 2009, the MPSC ordered refunds for the period the self-implemented rates were in effect. Detroit Edison has recorded a refund liability of $27 million at December 31, 2009 representing the 2009 portion of the estimated refund due customers, including interest. The MPSC ordered Detroit Edison to file a refund plan by April 1, 2010.
Other key aspects of the MPSC order include the following:
In order to more accurately reflect the actual cost of providing service to business customers, the MPSC adopted an immediate 39% phase out of the residential rate subsidy, with the remaining amount to be eliminated in equal installments over the next five years, every October 1.
Accepted Detroit Edison’s proposal to reinstate and modify the tracking mechanism on Electric Choice sales (CIM) with a base level of 1,561 GWh. The modified mechanism will not have a cap on the amount recoverable.
Accepted Detroit Edison’s proposal to terminate the Pension Equalization Mechanism.
Approved an annual reconciliation mechanism to track expenses associated with restoration costs (storm and non-storm related expenses) and line clearance expenses. Annual reconciliations will be required using a base expense level of $110 million and $51 million, respectively.
Approved Detroit Edison’s proposal to recover a return on $15 million of costs in working capital associated with expenses associated with preparation of an application for a new nuclear generation facility at its current Fermi 2 site.
2009 Electric Rate Case Filing
Detroit Edison filed a general rate case on January 26, 2009 based on a twelve months ended June 2008 historical test year. The filing with the MPSC requested a $378 million, or 8.1% average increase in Detroit Edison’s annual revenue requirement for the twelve months ended June 30, 2010 projected test year.
The requested $378 million increase in revenues is required to recover the increased costs associated with environmental compliance, operation and maintenance of the Company’s electric distribution system and generation plants, customer uncollectible accounts, inflation, the capital costs of plant additions and the reduction in territory sales.
In addition, Detroit Edison’s filing made, among other requests, the following proposals:
  Continued progress toward correcting the existing rate structure to more accurately reflect the actual cost of providing service to business customers;
 
  Continued application of an adjustment mechanism to enable the Company to address the costs associatedfor Electric Choice sales that reconciles actual customer choice sales with retail electric customers migrating to and from Detroit Edison’s full service retail electric tariff service;a base customer choice sales level of 1,586 GWh;
 
  ApplicationContinued application of an uncollectible expense true-up mechanism based on the $87 millionadjustment mechanisms to track expenses associated with restoration costs (storm and non-storm related expenses) and line clearance expenses. Annual reconciliations will be required using a base expense level of uncollectible expenses that occurred during$117 million and $47 million, respectively. The change in base expense level was applied effective as of the 12 month period ended June 2008;July 26, 2009 self-implementation date;

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  Continued applicationImplementation of a pilot Revenue Decoupling Mechanism, that will compare actual non-weather normalized sales per customer with the storm restoration expense recovery mechanism and modificationbase sales per customer level established in this case for the period February 1, 2010 to the line clearance expense recovery mechanism;January 31, 2011; and
 
  Implementation of an Uncollectible Expense Tracking Mechanism, based on a revenue decoupling mechanism.$66 million expense level, with an 80/20 percent sharing of the expenses above or below the base amount. The Uncollectible Expenses Tracking Mechanism was applied effective as of the July 26, 2009 self-implementation date.
Cost-Based Tariffs for SchoolsRenewable Energy Plan
In JanuaryMarch 2009, Detroit Edison filed aits Renewable Energy Plan with the MPSC as required under 2008 PA 295. The Renewable Energy Plan application that included two new cost-based tariffs for schools, universitiesrequests authority to recover approximately $35 million of additional revenue in 2009. The proposed revenue increase is necessary in order to properly implement Detroit Edison’s 20-year renewable energy plan to address the provisions of 2008 PA 295, to deliver cleaner, renewable electric generation to its customers, to further diversify Detroit Edison’s and community colleges. The filing is in compliance with Public Act 286 which required utilitiesthe State of Michigan’s sources of electric supply, and to file tariffs that ensure that eligible educational institutions are charged retail electric rates that reflectaddress the actual coststate and national goals of providing service to those customers. In February 2009, anincreasing energy independence. An MPSC order consolidated this proceeding withwas issued June 2, 2009 approving the January 26, 2009 electric rate case filing.renewable energy plan and customer surcharges. The Renewable Energy Plan surcharges became effective in September 2009.
Accounting for Costs Related to Enterprise Business SystemsEnergy Optimization Plans
In July 2004,March 2009, Detroit Edison filed an accounting applicationEnergy Optimization Plan with the MPSC requesting authorityas required under 2008 PA 295. The Energy Optimization Plan application is designed to capitalizehelp each customer class reduce their electric usage by: (1) building customer awareness of energy efficiency options and amortize costs related to EBS, consisting(2) offering a diverse set of computer equipment, softwareprograms and development costs, as well as related training, maintenance and overhead costs. In April 2005, the MPSC approved a settlement agreement providingparticipation options that result in energy savings for each customer class. Detroit Edison’s Energy Optimization Plan application proposed energy optimization expenditures for the deferralperiod 2009-2011 of certain EBS$134 million and further requests approval of surcharges that are designed to recover these costs. An MPSC order was issued June 2, 2009 approving the Energy Optimization Plans of $117 million for Detroit Edison. The surcharges to recover these costs which would otherwise be expensed, aswere implemented effective June 3, 2009. An MPSC order was issued September 29, 2009 approving incentive mechanisms for the utility. The mechanism allows a regulatory asset for future rate recovery starting January 1, 2006. At December 31, 2008, approximately $26 millionmaximum payout of EBS costs have been deferred as a regulatory asset. In15% of program expenditures when the MPSC’s December 2008 order inutility meets or exceeds the 2007savings target by 15%.
2009 Detroit Edison rate case, the Commission approved the recovery of deferred EBS costs over a 10-year period beginning in January 2009.
Fermi 2 Enhanced Security Costs SettlementDepreciation Filing
The Customer Choice and Electricity Reliability Act, as amended in 2003, allows for the recovery of reasonable and prudent costs of new and enhanced security measures required by state or federal law, including providing for reasonable security from an act of terrorism. In April 2007, the MPSC approved a settlement agreementordered Michigan utilities to file depreciation studies using the current method, an approach that authorizes Detroit Edison to recover Fermi 2 Enhanced Security Costs (ESC) incurred duringconsiders the periodtime value of September 11, 2001 through December 31, 2005. The settlement defined Detroit Edison’s ESC, discounted back to September 11, 2001, as $9.1 million plus carrying charges. A total of $13 million, including carrying charges, has been deferred as a regulatory asset. Detroit Edison is authorized to incorporate into its ratesmoney and an enhanced security factor over a period not to exceed five years. Amortization expense related to this regulatory asset was approximately $4 million and $3 million forinflation adjusted method proposed by the years ended December 31, 2008, and 2007, respectively.
Reconciliation of Regulatory Asset Recovery Surcharge
Company that removes excess escalation. In December 2006,compliance with the MPSC order, Detroit Edison filed a reconciliationits ordered depreciation studies in November 2009. The various required depreciation studies indicate composite depreciation rates from 3.05% to 3.54%. The Company has proposed no change to its current composite depreciation rate of costs underlying its existing RARS. This true-up filing was made to maximize the remaining time for recovery of significant cost increases prior to expiration of the RARS 5-year recovery limit under PA 141. Detroit Edison requested a reconciliation of the regulatory asset surcharge to ensure proper recovery by the end of the 5-year period of: (1) Clean Air Act Expenditures, (2) Capital3.33%. The Company expects an order in Excess of Base Depreciation, (3) MISO Costs and (4) the regulatory liability for the 1997 Storm Charge. In July 2007, the MPSC approved a negotiated RARS deficiency settlement that resulted in a $10 million write-down of RARS-related costs in 2007. As discussed above, the CIMthis proceeding in the MPSC Show-Cause Order will reduce the regulatory asset. Approximately $11 million and $28 million was credited to the unrecovered regulatory asset balance during the years ended December 31, 2008 and 2007, respectively. The CIM expired in April 2008.fourth quarter of 2010.
Power Supply Cost Recovery Proceedings
The PSCR process is designed to allow us to recover all of our power supply costs if incurred under reasonable and prudent policies and practices. Our power supply costs include fuel costs, purchased and net interchange power costs, nitrogen oxide and sulfur dioxide emission allowances costs, transmission costs and MISO costs. The MPSC reviews these costs, policies and practices for prudence in annual plan and reconciliation filings.
20052007 Plan Year In March 2006, Detroit Edison filed its 2005 PSCR reconciliation that sought approval for recovery of an under-collection of approximately $144 million at December 31, 2005 from its commercial and industrial customers. In addition to the 2005 PSCR plan year reconciliation, the filing included reconciliation for the Pension Equalization Mechanism (PEM) for the periods from November 24, 2004 through December 31, 2004 and from January 1, 2005 through December 31, 2005. The PEM reconciliation seeks to allocate and refund approximately $12 million to customers based on their contributions to pension expense during the subject periods.

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An order was issued on May 22, 2007 approving a 2005 PSCR under-collection amount of $94 million and the recovery of this amount through a surcharge for 12 months beginning in June 2007. In addition, the order approved Detroit Edison’s proposed PEM reconciliation that was refunded to customers on a bills-rendered basis during June 2007. The surcharge will be reconciled in the Company’s 2008 PSCR reconciliation.
2006 Plan Year —In March 2007, Detroit Edison filed its 2006 PSCR reconciliation that sought approval for recovery of an under-collection of approximately $51 million. Included in the 2006 PSCR reconciliation filing was the Company’s PEM reconciliation that reflects a $21 million over-collection which is subject to refund to customers. An MPSC order was issued on April 22, 2008January 25, 2010 approving the 2006a 2007 PSCR under-collectionunder collection amount of $51$38 million inclusive of a $2.7 million outage disallowance and the recovery of this amount as part of the 20072008 PSCR factor.reconciliation. In addition, the order approved Detroit Edison’s PEMPension Equalization Mechanism reconciliation and authorized the Company to refund the $22$21 million over-recovery,over recovery, including interest, to customers in May 2008. February 2010.

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The refund will be reconciled in the Company’s 2008 PEM reconciliation.
2007 Plan Year —In September 2006, Detroit Edison filed its 2007 PSCR plan case seeking approval of a levelized PSCR factor of 6.98 mills per kWh above the amount included in base rates for all PSCR customers. The Company’s PSCR plan filing included $130 million for the recovery of its projected 2006 PSCR under-collection, bringing the total requested PSCR factor to 9.73 mills/kWh. The Company filed supplemental testimony and briefs in December 2006 supporting its updated request to include approximately $81 million for the recovery of its projected 2006 PSCR under-collection. The MPSC issued a temporary order in December 2006 approving the Company’s request. In addition, Detroit Edison was granted the authority to include all PSCR over/(under) collections in future PSCR plans, thereby reducing the time between refund or recovery of PSCR reconciliation amounts. The Company began to collect its 2007 power supply costs, including the 2006 rollover amount, through a PSCR factor of 8.69 mills/kWh on January 1, 2007. In August 2007, the MPSC approvedfollowing table summarizes Detroit Edison’s 2007 PSCR plan case and authorized the Company to charge a maximum power supply cost recovery factor of 8.69 mills/kWh in 2007. The Company filed its 2007 PSCR reconciliation case in March 2008 and updated the filing in December 2008. The updated filing requests recovery of a $41 million PSCR under-collection through its 2008 PSCR plan. Included in the 2007 PSCR reconciliation filing wascurrently pending with the Company’s 2007 PEM reconciliation that reflects a $21 million over-collection, including interest and prior year refunds. The Company expects an order in this proceeding in the second quarter of 2009.MPSC:
2008 Plan Year —In September 2007, Detroit Edison filed its 2008 PSCR plan case seeking approval of a levelized PSCR factor of 9.23 mills/kWh above the amount included in base rates for all PSCR customers. Also included in the filing was a request for approval of the Company’s emission compliance strategy which included pre-purchases of emission allowances as well as a request for pre-approval of a contract for capacity and energy associated with a renewable (wind) energy project. On January 31, 2008, Detroit Edison filed a revised PSCR plan case seeking approval of a levelized PSCR factor of 11.22 mills/kWh above the amount included in base rates for all PSCR customers. The revised filing supports a 2008 power supply expense forecast of $1.4 billion and includes $43 million for the recovery of a projected 2007 PSCR under-collection. On July 29, 2008, the MPSC issued a temporary order approving Detroit Edison’s request to increase the PSCR factor to 11.22 mills/kWh. In January 2009, the MPSC approved the Company’s 2008 PSCR plan and authorized the Company to charge a maximum PSCR factor of 11.22 mills/kWh for 2008.
Net OverPSCR Cost of PowerDescription of Net
PSCR YearDate Filed(Under)-recoverySoldUnder-recovery
2008March 2009($15.6) million$1.3 billionThe total amount reflects an under-recovery of $14.8 million, plus $0.8 million in accrued interest due from customers
2009 Plan Year— In September 2008, Detroit Edison filedsubmitted its 2009 PSCR plan case seeking approval of a levelized PSCR factor of 17.67 mills/kWh abovefiling to the amount included in base rates for residential customers and a levelized PSCR factor of 17.29 mills/kWh above the amount included in base rates for commercial and industrial customers. The Company is supporting a total power supply expense forecast of $1.73 billion.MPSC. The plan also includes approximately $69 million for the recovery of its projected 2008 PSCR under-collection from all customers and approximately $12 million for the refund of its 2005 PSCR reconciliation surcharge over-collection to commercial and industrial customers only. On June 29, 2009, the parties to this proceeding submitted a Settlement Agreement in this matter agreeing to maximum PSCR factors of 1.67 mills/kWh for residential customers and 1.35 mills/kWh for commercial and industrial customers and otherwise resolving this 2009 PSCR Plan case. An MPSC order was issued on January 25, 2010 approving the settlement.
2010 Plan Year— In September 2009, Detroit Edison submitted its 2010 PSCR plan case seeking approval of a levelized PSCR factor of 5.64 mills/kWh below the amount included in base rates for all PSCR customers. The filing supports a 2010 power supply expense forecast of $1.2 billion. Also included in the filing is a request for approval of the Company’s expense associated with the use of urea in the selective catalytic reduction units at Monroe power plant as well as a request for approval of a contract for capacity and energy associated with a renewable (wind)wind energy project. The Company’s PSCR Plan will allow the Company has also requested authority to recover its reasonablytransfer prices for renewable energy, coke oven gas expense and prudently incurred power supply expense including, fuel costs, purchased and net interchange power costs, nitrogen oxide and sulfur dioxide emission allowance costs, transmission costs and MISO costs. The Company self-implemented a PSCR factor of 11.64 mills/kWh above the amount included in base rates for residential customers and a PSCR factor of 11.22 mills/kWh above the amount included in base rates for commercial and industrial customers on bills rendered in

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January 2009. Subsequently, as a result of the December 23, 2008 MPSC order in the 2007 Detroit Edison Rate case, the Company implemented a PSCR factor of 3.18 mills/kWh below the amount included in base rates for residential customers and a PSCR factor of 3.60 mills/kWh below the amount included in base rates for commercial and industrial customers for bills rendered effective January 14, 2009.other potential expenses.
OtherMerger Control Premium Costs
In July 2007, the State of Michigan Court of Appeals published its decision with respect to an appeal by Detroit Edison and others of certain provisions of a November 2004 MPSC order, including reversing the MPSC’s denial of recovery of merger control premium costs. In its published decision, the Court of Appeals held that Detroit Edison is entitled to recover its allocated share of the merger control premium and remanded this matter to the MPSC for further proceedings to establish the precise amount and timing of this recovery. Detroit Edison has filed a supplement to its April 2007 rate case to address the recovery of the merger control premium costs. Other parties filed requests for leave to appeal to the Michigan Supreme Court from the Court of Appeals decision and in September 2008, the Michigan Supreme Court granted the requests to address the merger control premium as well as the recovery of transmission costs through the PSCR. On May 1, 2009, the Michigan Supreme Court issued an order reversing the Court of Appeals decision with respect to recovery of the merger control premium, and reinstated the MPSC’s decision excluding the control premium costs from Detroit Edison’s general rates. The Court affirmed the lower court’s decision upholding the right of Detroit Edison to recover electric transmission costs through the Company’s PSCR clause. The Company is unable to predictrequested rehearing of the Supreme Court order on the merger premium and the Michigan Attorney General requested rehearing of the transmission portion of the order. On June 26, 2009, the Michigan Supreme Court denied request for a rehearing. The above actions did not have an impact on the Company’s consolidated financial or other outcome of any legal or regulatory proceeding at this time.statements.
Other
The Company is unable to predict the outcome of the unresolved regulatory matters discussed herein. Resolution of these matters is dependent upon future MPSC orders and appeals, which may materially impact the financial position, results of operations and cash flows of the Company.

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NOTE 511NUCLEAR OPERATIONSINCOME TAXES
GeneralIncome Tax Summary
Fermi 2, the Company’s nuclear generating plant, began commercial operation in 1988. Fermi 2 has a design electrical rating (net) of 1,150 MW. This plant represents approximately 10% of Detroit Edison’s summer net rated capability. The net book balanceWe are part of the Fermi 2 plant was written offconsolidated federal income tax return of DTE Energy. The federal income tax expense for Detroit Edison is determined on an individual company basis with no allocation of tax benefits or expenses from other affiliates of DTE Energy. We had an income tax payable of $75 million at December 31, 1998,2009 and an equivalentincome tax payable of $33 million at December 31, 2008 due to DTE Energy.
Total income tax expense varied from the statutory federal income tax rate for the following reasons:
             
(Dollars in Millions) 2009  2008  2007 
Income tax expense at 35% statutory rate $211  $181  $163 
             
Investment tax credits  (6)  (6)  (7)
Depreciation  3   3   3 
Employee Stock Ownership Plan dividends  (4)  (2)  (4)
Medicare Part D subsidy  (5)  (4)  (4)
Domestic production activities deduction  (5)  (2)  (2)
State and other income taxes, net of federal benefit  36   19   1 
Other, net  (2)  (3)  (1)
          
Total $228  $186  $149 
          
             
Effective income tax rate  37.7%  36.0%  32.0%
          
Components of income tax expense (benefits) were as follows:
             
(in Millions) 2009  2008  2007 
Current income taxes Federal $168  $66  $257 
State and other income tax expense  45   30   3 
          
Total current income taxes  213   96   260 
          
Deferred income taxes Federal  4   91   (109)
State and other income tax expense  11   (1)  (2)
          
Total deferred income taxes  15   90   (111)
          
Total $228  $186  $149 
          
Investment tax credits are deferred and amortized to income over the average life of the related property.
Deferred tax assets and liabilities are recognized for the estimated future tax effect of temporary differences between the tax basis of assets or liabilities and the reported amounts in the financial statements. Deferred tax assets and liabilities are classified as current or noncurrent according to the classification of the related assets or liabilities. Deferred tax assets and liabilities not related to assets or liabilities are classified according to the expected reversal date of the temporary differences. Consistent with rate making treatment, deferred taxes are offset in the table below for temporary differences which have related regulatory assets and liabilities.
Deferred tax assets (liabilities) were comprised of the following at December 31:
         
(in Millions) 2009  2008 
Property, plant and equipment $(1,409) $(1,297)
Securitized regulatory assets  (474)  (545)
Pension and benefits  103   110 
Other comprehensive income  9   (1)
Other, net  (76)  (142)
       
  $(1,847) $(1,875)
       

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(in Millions) 2009  2008 
Deferred income tax liabilities $(2,832) $(2,777)
Deferred income tax assets  985   902 
       
  $(1,847) $(1,875)
       
         
Current deferred income tax asset (included in Current Assets — Other) $24  $19 
Long term deferred income tax liabilities  (1,871)  (1,894)
       
  $(1,847) $(1,875)
       
The above table excludes deferred tax liabilities associated with unamortized investment tax credits that are shown separately on the Consolidated Statements of Financial Position.
Uncertain Tax Positions
A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:
             
(in Millions) 2009  2008  2007 
Balance at January 1 $70  $7  $12 
Additions for tax positions of current years  10   72   2 
Additions for tax positions of prior years  24   (9)   
Reductions for tax positions of prior years  (8)     (7)
          
Balance at December 31 $96  $70  $7 
          
Unrecognized tax benefits at December 31, 2009, if recognized, would favorably impact our effective tax rate by $2 million.
The Company recognizes interest and penalties pertaining to income taxes in Interest expense and Other expenses, respectively, on its Consolidated Statements of Operations. Accrued interest pertaining to income taxes totaled $6 million and $1 million at December 31, 2009 and December 31, 2008, respectively. The Company had no accrued penalties pertaining to income taxes. The Company recognized $5 million for interest expense related to income taxes during 2009 and an immaterial amount during 2008.
In 2009, DTE Energy and its subsidiaries settled a federal tax audit for the 2004 through 2006 tax years. The resulting change to unrecognized tax benefits was not significant. The Company’s U.S. federal income tax returns for years 2007 and subsequent years remain subject to examination by the IRS. The Company’s Michigan Business Tax for the year 2008 is subject to examination by the State of Michigan. The Company also files tax returns in numerous state and local jurisdictions with varying statutes of limitation.
Michigan Business Tax
In July 2007, the Michigan Business Tax (MBT) was enacted by the State of Michigan to replace the Michigan Single Business Tax (MSBT) effective January 1, 2008. The MBT is comprised of an apportioned modified gross receipts tax of 0.8 percent and an apportioned business income tax of 4.95 percent. The MBT provides credits for Michigan business investment, compensation, and research and development. Legislation was also enacted, in 2007, by the State of Michigan creating a deduction for businesses that realize an increase in their deferred tax liability due to the enactment of the MBT. The MBT is accounted for as an income tax.
The MBT consolidated deferred tax liability balance is $354 million as of December 31, 2009 and is reported net of the related federal tax benefit. The MBT deferred tax asset balance is $367 million as of December 31, 2009 and is reported net of the related federal deferred tax liability. The regulated asset balance is $343 million and the regulated liability balance is $367 million as of December 31, 2009 and is further discussed in Note 10.

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NOTE 12 — LONG-TERM DEBT
Our long-term debt outstanding and weighted average interest rates(1) of debt outstanding at December 31 were:
         
(in Millions) 2009  2008 
Detroit Edison Taxable Debt, Principally Secured
        
5.9% due 2010 to 2038 $2,829  $2,841 
Detroit Edison Tax- Exempt Revenue Bonds (2)
        
5.5% due 2011 to 2038  1,263   1,263 
       
   4,092   4,104 
Less amount due within one year  (513)  (13)
       
  $3,579  $4,091 
       
         
Securitization Bonds
        
6.5% due 2010 to 2015 $933  $1,064 
Less amount due within one year  (140)  (132)
       
  $793  $932 
       
(1)Weighted average interest rates as of December 31, 2009 are shown below the description of each category of debt.
(2)Detroit Edison Tax-Exempt Revenue Bonds are issued by a public body that loans the proceeds to Detroit Edison on terms substantially mirroring the Revenue Bonds.
Debt Issuances
In 2009, we issued the following long-term debt:
               
(in Millions)           
Month Issued Type Interest Rate  Maturity  Amount 
 
April Tax-Exempt Revenue Bonds (1)  6.00%  2036   69 
June Tax-Exempt Revenue Bonds (2)  5.625%  2020   32 
June Tax-Exempt Revenue Bonds (3)  5.25%  2029   60 
June Tax-Exempt Revenue Bonds (4)  5.50%  2029   59 
November Tax-Exempt Revenue Bonds (5)  3.05%  2024   65 
              
            $285 
              
(1)Proceeds were used to refund existing Tax-Exempt Revenue Bonds.
(2)These Tax-Exempt Revenue Bonds were converted from a variable rate mode and remarketed in a fixed rate mode to maturity.
(3)These Tax-Exempt Revenue Bonds were converted from a variable rate mode and remarketed in a fixed rate mode with a five-year mandatory put.
(4)These Tax-Exempt Revenue Bonds were converted from a variable rate mode and remarketed in a fixed rate mode with a seven-year mandatory put.
(5)These Tax-Exempt Revenue Bonds were issued in a fixed rate mode with a three-year mandatory put. Proceeds were used to refund existing Tax-Exempt Revenue Bonds.

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Debt Retirements and Redemptions
The following debt was established. In 2001,retired, through optional redemption or payment at maturity, during 2009.
               
(in Millions)           
Month Retired Type Interest Rate  Maturity  Amount 
 
April Tax-Exempt Revenue Bonds (1) Variable  2036  $69 
December Tax-Exempt Revenue Bonds (1)  6.40%  2024   65 
              
            $134 
              
(1)These Tax-Exempt Revenue Bonds were redeemed with the proceeds from the issuance of new Detroit Edison Tax-Exempt Revenue Bonds.
The following table shows the Fermi 2 regulatory asset was securitized.scheduled debt maturities, excluding any unamortized discount or premium on debt:
                             
                      2015 &    
(in Millions) 2010  2011  2012  2013  2014  thereafter  Total 
Amount to mature $513  $152  $303  $313  $341  $2,475  $4,097 
Default Provisions
Substantially all of the net properties of Detroit Edison also owns Fermi 1,are subject to the lien of its mortgage. Should Detroit Edison fail to timely pay its indebtedness under this mortgage, such failure may create cross defaults in the indebtedness of DTE Energy.
NOTE 13 — PREFERRED AND PREFERENCE SECURITIES
At December 31, 2009, Detroit Edison had approximately 6.75 million shares of preferred stock with a nuclearpar value of $100 per share and 30 million shares of preference stock with a par value of $1 per share authorized, with no shares issued.
NOTE 14 — SHORT-TERM CREDIT ARRANGEMENTS AND BORROWINGS
Detroit Edison has a $69 million, five-year unsecured revolving credit agreement expiring in October 2010 and a $212 million, two-year unsecured revolving credit agreement expiring in April 2011. The five-year and two-year credit facilities are with a syndicate of 22 banks and may be used for general corporate borrowings, but are intended to provide liquidity support for our commercial paper program. No one bank provides more than 8.5% of the commitment in any facility. Borrowings under the facilities are available at prevailing short-term interest rates. The above agreements require the Company to maintain a total funded debt to capitalization ratio, as defined in the agreements, of no more than 0.65 to 1. At December 31, 2009, the debt to total capitalization ratio for Detroit Edison is 0.52 to 1. Should we have delinquent obligations of at least $50 million to any creditor; such delinquency will be considered a default under our credit agreements.
We had no outstanding commercial paper of as of December 31, 2009 and December 31, 2008.
Detroit Edison had no short-term borrowings at December 31, 2009 and $75 million outstanding at December 31, 2008. The weighted average interest rate for short-term borrowings was 1.3% at December 31, 2008.

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NOTE 15 — CAPITAL AND OPERATING LEASES
Lessee— The Company leases various assets under capital and operating leases, including coal cars, computers, vehicles and other equipment. The lease arrangements expire at various dates through 2023.
Future minimum lease payments under non-cancelable leases at December 31, 2009 were:
         
  Capital  Operating 
(in Millions) Leases  Leases 
2010 $9  $23 
2011  7   22 
2012  5   22 
2013  5   19 
2014  4   14 
Thereafter  7   77 
       
Total minimum lease payments  37  $177 
        
Less imputed interest  5     
        
Present value of net minimum lease payments  32     
Less current portion  7     
        
Non-current portion $25     
        
Rental expense for operating leases was $48 million in 2009, $39 million in 2008, and $48 million in 2007.
NOTE 16 — COMMITMENTS AND CONTINGENCIES
Environmental
Air— Detroit Edison is subject to EPA ozone transport and acid rain regulations that limit power plant that was shut downemissions of sulfur dioxide and nitrogen oxides. Since 2005, EPA and the State of Michigan have issued additional emission reduction regulations relating to ozone, fine particulate, regional haze and mercury air pollution. The new rules will lead to additional controls on fossil-fueled power plants to reduce nitrogen oxide, sulfur dioxide and mercury emissions. To comply with these requirements, Detroit Edison has spent approximately $1.5 billion through 2009. The Company estimates Detroit Edison will make future undiscounted capital expenditures of up to $73 million in 19722010 and is currently being decommissioned. The NRC has jurisdictionup to $2.2 billion of additional capital expenditures through 2019 based on current regulations. Further, additional rulemakings are expected over the licensingnext few years which could require additional controls for sulfur dioxide, nitrogen oxides and operationhazardous air pollutants (HAPs). It is not possible to quantify the impact of Fermi 2those expected rulemakings at this time.
In July 2009, DTE Energy received a Notice of Violation/Finding of Violation (NOV/FOV) from the EPA alleging, among other things, that five Detroit Edison power plants violated New Source Performance standards, Prevention of Significant Deterioration requirements, and Title V operating permit requirements under the decommissioningClean Air Act. We believe that the plants identified by the EPA have complied with applicable regulations. Depending upon the outcome of Fermi 1.our discussions with the EPA regarding the NOV/FOV, the EPA could bring legal action against Detroit Edison. We could also be required to install additional pollution control equipment at some or all of the power plants in question, engage in Supplemental Environmental Programs, and/or pay fines. We cannot predict the financial impact or outcome of this matter, or the timing of its resolution.
Water— In response to an EPA regulation, Detroit Edison is required to examine alternatives for reducing the environmental impacts of the cooling water intake structures at several of its facilities. Based on the results of completed studies and expected future studies, Detroit Edison may be required to install additional control technologies to reduce the impacts of the water intakes. Initially, it was estimated that Detroit Edison could incur up to approximately $55 million over the four to six years subsequent to 2008 in additional capital expenditures to comply with these requirements. However, a January 2007 circuit court decision remanded back to the EPA several provisions of the federal regulation that may result in a delay in compliance dates. The decision also raised the possibility that Detroit Edison may have to install cooling towers at some facilities at a cost substantially greater than was initially estimated for other mitigative technologies. In 2008, the Supreme Court agreed to review the remanded cost-benefit analysis provision of the rule and in April 2009 upheld EPA’s use of this provision in determining best technology available for reducing environmental impacts. Concurrently, the EPA continues to

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develop a revised rule, a draft of which is expected to be published by summer 2010. The EPA has also proposed an information collection request to begin a review of steam electric effluent guidelines. It is not possible at this time to quantify the impacts of these developing requirements.
Contaminated Sites— Detroit Edison conducted remedial investigations at contaminated sites, including three former manufactured gas plant (MGP) sites. The investigations have revealed contamination related to the by-products of gas manufacturing at each site. In addition to the MGP sites, the Company is also in the process of cleaning up other contaminated sites, including the area surrounding an ash landfill, electrical distribution substations, and underground and aboveground storage tank locations. The findings of these investigations indicated that the estimated cost to remediate these sites is expected to be incurred over the next several years. At December 31, 2009 and 2008, the Company had $9 million and $12 million, respectively, accrued for remediation.
Landfill— Detroit Edison owns and operates a permitted engineered ash storage facility at the Monroe Power Plant to dispose of fly ash from the coal fired power plant. Detroit Edison performed an engineering analysis in 2009 and identified the need for embankment side slope repairs and reconstruction.
Nuclear Operations
Property Insurance
Detroit Edison maintains several different types of property insurance policies specifically for the Fermi 2 plant. These policies cover such items as replacement power and property damage. The Nuclear Electric Insurance Limited (NEIL) is the primary supplier of the insurance policies.
Detroit Edison maintains a policy for extra expenses, including replacement power costs necessitated by Fermi 2’s unavailability due to an insured event. This policy has a 12-week waiting period and provides an aggregate $490 million of coverage over a three-year period.
Detroit Edison has $500 million in primary coverage and $2.25 billion of excess coverage for stabilization, decontamination, debris removal, repair and/or replacement of property and decommissioning. The combined coverage limit for total property damage is $2.75 billion.
In 2007, the Terrorism Risk Insurance Extension Act of 2005 (TRIA) was extended through December 31, 2014. A major change in the extension is the inclusion of “domestic” acts of terrorism in the definition of covered or “certified” acts. For multiple terrorism losses caused by acts of terrorism not covered under the TRIA occurring within one year after the first loss from terrorism, the NEIL policies would make available to all insured entities up to $3.2 billion, plus any amounts recovered from reinsurance, government indemnity, or other sources to cover losses.
Under the NEIL policies, Detroit Edison could be liable for maximum assessments of up to approximately $30$28 million per event if the loss associated with any one event at any nuclear plant in the United States should exceed the accumulated funds available to NEIL.

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Public Liability Insurance
As of January 1, 2010, as required by federal law, Detroit Edison maintains $300$375 million of public liability insurance for a nuclear incident. For liabilities arising from a terrorist act outside the scope of TRIA, the policy is subject to one industry aggregate limit of $300 million. Further, under the Price-Anderson Amendments Act of 2005, deferred premium charges up to $117.5 million could be levied against each licensed nuclear facility, but not more than $17.5 million per year per facility. Thus, deferred premium charges could be levied against all owners of licensed nuclear facilities in the event of a nuclear incident at any of these facilities.
Decommissioning
Detroit Edison has a legal obligation to decommission its nuclear power plants following the expiration of their operating licenses. This obligation is reflected as an asset retirement obligation on the Consolidated Statements of Financial Position. Based on the actual or anticipated extended life of the nuclear plant, decommissioning expenditures for Fermi 2 are expected to be incurred primarily during the period of 2025 through 2050. It is estimated that the cost of decommissioning Fermi 2, when its license expires in 2025, will be $1.3 billion in 2008 dollars and $3.4 billion in 2025 dollars, using a 6% inflation rate. In 2001, Detroit Edison began the decommissioning of Fermi 1, with the goal of removing the radioactive material and terminating the Fermi 1 license. The decommissioning of Fermi 1 is expected to be completed by 2012.
The NRC has jurisdiction over the decommissioning of nuclear power plants and requires decommissioning funding based upon a formula. The MPSC and FERC regulate the recovery of costs of decommissioning nuclear power plants and both require the use of external trust funds to finance the decommissioning of Fermi 2. Rates approved by the MPSC provide for the recovery of decommissioning costs of Fermi 2 and the disposal of low-level radioactive waste. Detroit Edison is continuing to fund FERC jurisdictional amounts for decommissioning even though explicit provisions are not included in FERC rates. The Company believes the MPSC and FERC collections will be adequate to fund the estimated cost of decommissioning using the NRC formula. The decommissioning assets, anticipated earnings thereon and future revenues from decommissioning collections will be used to decommission Fermi 2. The Company expects the liabilities to be reduced to zero at the conclusion of the decommissioning activities. If amounts remain in the trust funds for Fermi 2 following the completion of the decommissioning activities, those amounts will be disbursed based on rulings by the MPSC and FERC.
A portion of the funds recovered through the Fermi 2 decommissioning surcharge and deposited in external trust accounts is designated for the removal of non-radioactive assets and the clean-up of the Fermi site. This removal and clean-up is not considered a legal liability. Therefore, it is not included in the asset retirement obligation, but is reflected as the nuclear decommissioning regulatory liability.
The decommissioning of Fermi 1 is funded by Detroit Edison. Contributions to the Fermi 1 trust are discretionary.
The following table summarizes the fair value of the nuclear decommissioning trust fund assets.
         
  As of December 31 
(in Millions) 2008  2007 
Fermi 2 $649  $778 
Fermi 1  3   13 
Low level radioactive waste  33   33 
       
Total $685  $824 
       
At December 31, 2008, investments in the external nuclear decommissioning trust funds consisted of approximately 42% in publicly traded equity securities, 57% in fixed debt instruments and 1% in cash equivalents. The debt securities had an average maturity of approximately 5 years. At December 31, 2007, investments in the external nuclear decommissioning trust funds consisted of approximately 54% in publicly traded equity securities, 45% in fixed income and 1% in cash equivalents. The debt securities had an average maturity of approximately 5.3 years.

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The costs of securities sold are determined on the basis of specific identification. The following table sets forth the gains and losses and proceeds from the sale of securities by the nuclear decommissioning trust funds:
             
  Year Ended December 31
(in Millions) 2008 2007 2006
Realized gains $34  $25  $21 
Realized losses $(49) $(17) $(9)
Proceeds from sales of securities $232  $286  $253 
Realized gains and losses and proceeds from sales of securities for the Fermi 2 and the low level Radioactive Waste funds are recorded to the asset retirement obligation regulatory asset and nuclear decommissioning regulatory liability, respectively. The following table sets forth the fair value and unrealized gains for the nuclear decommissioning trust funds:
         
  Fair  Unrealized 
(in Millions) Value  Gains 
As of December 31, 2008        
Equity Securities $288  $65 
Debt Securities  388   17 
Cash and Cash Equivalents  9    
       
  $685  $82 
       
As of December 31, 2007        
Equity Securities $443  $170 
Debt Securities  373   9 
Cash and Cash Equivalents  8    
       
  $824  $179 
       
Securities held in the nuclear decommissioning trust funds are classified as available-for-sale. As Detroit Edison does not have the ability to hold impaired investments for a period of time sufficient to allow for the anticipated recovery of market value, all unrealized losses are considered to be other than temporary impairments.
Impairment charges for unrealized losses incurred by the Fermi 2 trust are recognized as a regulatory asset. Detroit Edison recognized $92 million and $22 million of unrealized losses as regulatory assets for the years ended December 31, 2008 and 2007, respectively. Since the decommissioning of Fermi 1 is funded by Detroit Edison rather than through a regulatory recovery mechanism, there is no corresponding regulatory asset treatment. Therefore, impairment charges for unrealized losses incurred by the Fermi 1 trust are recognized in earnings immediately. For the year ended December 31, 2008 no impairment charges were recognized by Detroit Edison for unrealized losses incurred by the Fermi 1 trust. For the year ended December 31, 2007, Detroit Edison recognized impairment charges of $0.2 million, for unrealized losses incurred by the Fermi 1 trust.
Nuclear Fuel Disposal Costs
In accordance with the Federal Nuclear Waste Policy Act of 1982, Detroit Edison has a contract with the U.S. Department of Energy (DOE) for the future storage and disposal of spent nuclear fuel from Fermi 2. Detroit

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Edison is obligated to pay the DOE a fee of 1 mill per kWh of Fermi 2 electricity generated and sold. The fee is a component of nuclear fuel expense. Delays have occurred in the DOE’s program for the acceptance and disposal of spent nuclear fuel at a permanent repository.repository and the proposed fiscal year 2011 federal budget recommends termination of funding for completion of the government’s long-term storage facility. Detroit Edison is a party in the litigation against the DOE for both past and future costs associated with the DOE’s failure to accept spent nuclear fuel under the timetable set forth in the Federal Nuclear Waste Policy Act of 1982. Detroit Edison currently employs a usedspent nuclear fuel storage strategy utilizing a spent fuel pool. We have begun work on an on-site dry cask storage facility which is expected to provide sufficient storage capability for the life of the plant as defined by the original operating license. Issues relating to long-term waste disposal policy and to the disposition of funds contributed by Detroit Edison ratepayers to the federal waste fund await future governmental action.

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NOTE 6 — JOINTLY OWNED UTILITY PLANTGuarantees
In certain limited circumstances, the Company enters into contractual guarantees. The Company may guarantee another entity’s obligation in the event it fails to perform. The Company may provide guarantees in certain indemnification agreements. Finally, the Company may provide indirect guarantees for the indebtedness of others.
Detroit Edison has joint ownership interest in two power plants, Belle River and Ludington Hydroelectric Pumped Storage. Ownership informationguaranteed a bank term loan of $11 million related to the sale of its steam heating business to Thermal Ventures II, L.P. In conjunction with a refinancing of the two utility plants as of December 31, 2008 was as follows:
         
      Ludington
      Hydroelectric
  Belle River Pumped Storage
In-service date  1984-1985   1973 
Total plant capacity 1,260MW 1,872MW
Ownership interest   *  49%
Investment (in Millions) $1,588  $165 
Accumulated depreciation (in Millions) $853  $106 
*Detroit Edison’s ownership interest is 63% in Unit No. 1, 81% of the facilities applicable to Belle River used jointly by the Belle River and St. Clair Power Plants and 75% in common facilities used at Unit No. 2.
Belle River
The Michigan Public Power Agency (MPPA) has an ownership intereststeam heating business in Belle River Unit No. 12009, the Company performed a reconsideration analysis and other related facilities. The MPPA is entitled to 19% ofdetermined the total capacity and energy of the plant and is responsible for the same percentage of the plant’s operation, maintenance and capital improvement costs.
Ludington Hydroelectric Pumped Storage
Consumers Energy Company has an ownership interest in the Ludington Hydroelectric Pumped Storage Plant. Consumers Energy is entitled to 51% of the total capacity and energy of the plant and is responsible for the same percentage of the plant’s operation, maintenance and capital improvement costs.
NOTE 7 — INCOME TAXES
Income Tax Summary
We are part of the consolidated federal income tax return of DTE Energy. The federal income tax expense for Detroit Edison is determined on an individual company basis with no allocation of tax benefits or expenses from other affiliates of DTE Energy. We have an income tax payable of $33 million at December 31, 2008 and an income tax receivable of $34 million at December 31, 2007 due to/from DTE Energy.
Total income tax expense varied from the statutory federal income tax rate for the following reasons:
             
(Dollars in Millions) 2008  2007  2006 
Income tax expense at 35% statutory rate $181  $163  $169 
 
Investment tax credits  (6)  (7)  (7)
Depreciation  3   3   3 
Employee Stock Ownership Plan dividends  (2)  (4)  (4)
Medicare Part D subsidy  (4)  (4)  (5)
State and other income taxes, net of federal benefit  19   1   2 
Other, net  (5)  (3)  4 
          
Total $186  $149  $162 
          
             
Effective income tax rate  36.0%  32.0%  33.6%
          

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Components of income tax expense (benefits) were as follows:
             
(in Millions) 2008  2007  2006 
Current income taxes Federal $66  $257  $157 
State and other income tax expense  30   3   3 
          
Total current income taxes  96   260   160 
          
Deferred federal and other income tax expense Federal  91   (109)  1 
State and other income tax expense  (1)  (2)  1 
          
Total deferred income taxes  90   (111)  2 
          
             
Total $186  $149  $162 
          
Investment tax credits are deferred and amortized to income over the average life of the related property.
Deferred tax assets and liabilities are recognized for the estimated future tax effect of temporary differences between the tax basis of assets or liabilities and the reported amounts in the financial statements. Deferred tax assets and liabilities are classified as current or noncurrent according to the classification of the related assets or liabilities. Deferred tax assets and liabilities not related to assets or liabilities are classified according to the expected reversal date of the temporary differences. Consistent with rate making treatment, deferred taxes are offset in the table below for temporary differences which have related regulatory assets and liabilities.
Deferred tax assets (liabilities) were comprised of the following at December 31:
         
(in Millions) 2008  2007 
Property, plant and equipment $(1,297) $(1,156)
Securitized regulatory assets  (545)  (621)
Pension and benefits  110   101 
Other comprehensive income  (1)  (2)
Other, net  (142)  (176)
       
  $(1,875) $(1,854)
       
         
Deferred income tax liabilities $(2,777) $(2,662)
Deferred income tax assets  902   808 
       
  $(1,875) $(1,854)
       
Current deferred income tax asset (liabilities) included in Current Assets — Other or Current Liabilities — Other $19  $(29)
Long term deferred income tax liabilities  (1,894)  (1,825)
       
  $(1,875) $(1,854)
       
The above table excludes deferred tax liabilities associated with unamortized investment tax credits that are shown separately on the Consolidated Statement of Financial Position.

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Uncertain Tax Positions
The Company adopted the provisions of FASB Interpretation No. 48,Accounting for Uncertainty in Income Taxes — an interpretation of FASB Statement No. 109 (FIN 48)on January 1, 2007. This interpretation prescribes a more-likely-than-not recognition threshold and a measurement attribute for the financial statement reporting of tax positions taken or expectedsteam heating business entity to be taken on a tax return. Asvariable interest entity as a result of the implementation of FIN 48,insufficient equity at risk. It was determined that the Company recognized a decrease in liabilities that was accounted for as an increase tois not the January 1, 2007 balance of retained earnings in an immaterial amount. A reconciliation of the beginningprimary beneficiary and ending amount of unrecognized tax benefits is as follows:
         
(in Millions) 2008  2007 
Balance at January 1 $7  $12 
Additions for tax positions of current years  72   2 
Reductions for tax positions of prior years  (9)   
Settlements     (7)
       
Balance at December 31 $70  $7 
       
Unrecognized tax benefits at December 31, 2008, if recognized, would favorably impact our effective tax rate by $2 million. During the next twelve months, it is reasonably possible that DTE Energy Company and its subsidiaries will settle certain federal tax audits. The anticipated changes in the unrecognized tax benefits will not be significant.
The Company recognizes interest and penalties pertaining to income taxes in Interest expense and Other expenses, respectively, on its Consolidated Statements of Operations. Accrued interest pertaining to income taxes totaled $1 million at December 31, 2008 and December 31, 2007. The Company had no accrued penalties pertaining to income taxes. The Company recognized an immaterial amount for interest expense related to income taxes during 2008 and $1 million during 2007.
The U.S. federal income tax returns for years 2004 and subsequent years remain subject to examination by the IRS for DTE Energy Company and its subsidiaries. The Michigan Business Tax for the year 2008 is subject to examination by the State of Michigan for DTE Energy and its subsidiaries. The Company also files tax returns in various state and local tax jurisdictions with varying statutes of limitation.
Michigan Business Tax
In July 2007, the Michigan Business Tax (MBT) was enacted by the State of Michigan to replace the Michigan Single Business Tax (MSBT) effective January 1, 2008. The MBT is comprised of an apportioned modified gross receipts tax of 0.8 percent and an apportioned business income tax of 4.95 percent. The MBT provides credits for Michigan business investment, compensation, and research and development. The MBT is accounted for as an income tax.
In 2007 a state deferred tax liability of $318 million was recognized by the Company for cumulative differences between book and tax assets and liabilities for the Company. Effective September 30, 2007, legislation was adopted by the State of Michigan creating a deduction for businesses that realize an increase in their deferred tax liability due to the enactment of the MBT. Therefore, a deferred tax asset of $318 million was established related to the future deduction. The deduction will be claimed during the period of 2015 through 2029. The recognition of the enactment of the MBT did not have an impact on our income tax provision for 2007.
The 2007 MBT deferred tax liability was increased in 2008 by $17 million to $335 million to reflect changes in federal income tax temporary differences primarily due to an approved IRS change inhistorical accounting method for the Company for the tax year 2007. The related one-time deferred tax asset for the tax deduction created for businesses that realize an increase in their deferred tax liability due to the enactment of the MBT was also increased by $17 million to $335 million. The corresponding regulatory assets and liabilities were also increased by $17 million to $335 million in accordance with SFAS No. 71,Accounting for the Effects of Certain Types of Regulation,as the impacts of the deferred tax liabilities and assets recognized upon enactment and amendment of the MBT will be reflected in our rates.

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In 2008, the state deferred tax liability increased by $1 million to $336 million as of December 31, 2008 and the related regulatory asset increased to $336 million as of December 31, 2008.
NOTE 8 — LONG-TERM DEBT
Our long-term debt outstanding and weighted average interest rates(1) of debt outstanding at December 31 were:
         
(in Millions) 2008  2007 
Detroit Edison Taxable Debt, Principally Secured
        
5.9% due 2010 to 2038 $2,841  $2,305 
Detroit Edison Tax- Exempt Revenue Bonds (2)
        
5.2% due 2011 to 2036  1,263   1,213 
       
   4,104   3,518 
Less amount due within one year  (13)  (45)
       
  $4,091  $3,473 
       
Securitization Bonds
        
6.4% due 2009 to 2015 $1,064  $1,185 
Less amount due within one year  (132)  (120)
       
  $932  $1,065 
       
(1)Weighted average interest rates as of December 31, 2008 are shown below the description of each category of debt.
(2)Detroit Edison Tax Exempt Revenue Bonds are issued by a public body that loans the proceeds to Detroit Edison on terms substantially mirroring the Revenue Bonds.
Debt Issuances
In 2008, we issued the following long-term debt:
                 
(in Millions)            
Month Issued  Type Interest Rate  Maturity  Amount 
 
April Tax-Exempt Revenue Bonds (2) (3) Variable  2036   69 
May Tax-Exempt Revenue Bonds (2) (3) Variable  2029   118 
May Tax-Exempt Revenue Bonds (2) (4)  5.30%  2030   51 
June Senior Notes (1)  5.60%  2018   300 
July Tax-Exempt Revenue Bonds (2) (6) Variable  2020   32 
October Senior Notes (1)  6.40%  2013   250 
December Tax-Exempt Revenue Bonds (2) (5)  6.75%  2038   50 
                
              $870 
                
(1)Proceeds were used to pay down short-term debt and for general corporate purposes.
(2)Detroit Edison Tax-Exempt Revenue Bonds are issued by a public body that loans the proceeds to Detroit Edison on terms substantially mirroring the Revenue Bonds.
(3)Proceeds were used to refinance auction rate Tax-Exempt Revenue Bonds.
(4)These Tax-Exempt Revenue Bonds were converted from an auction rate mode and remarketed in a fixed rate mode to maturity.
(5)Proceeds to be used to finance the construction, acquisition, improvement and installation of certain solid waste disposal facilities at Detroit Edison’s Monroe Power Plant.
(6)Proceeds were used to refinance Tax-Exempt Revenue Bonds that matured July 2008.

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Debt Retirements and Redemptions
The following debt was retired, through optional redemption or payment at maturity, during 2008.
                 
(in Millions)            
Month Retired  Type Interest Rate  Maturity  Amount 
 
April Tax-Exempt Revenue Bonds (1) Variable  2036  $69 
May Tax-Exempt Revenue Bonds (1) Variable  2029   118 
July Tax-Exempt Revenue Bonds (2)  7.00%  2008   32 
                
              $219 
                
(1)These Tax-Exempt Revenue Bonds were converted from auction rate mode and subsequently redeemed with proceeds from the issuance of new Detroit Edison Tax-Exempt Revenue Bonds.
(2)These Tax-Exempt Revenue Bonds were redeemed with the proceeds from the issuance of new Detroit Edison Tax-Exempt Revenue Bonds.
The following table shows the scheduled debt maturities, excluding any unamortized discount or premium on debt:
                             
                      2014 &  
(in Millions) 2009 2010 2011 2012 2013 thereafter Total
             
Amount to mature $145  $652  $303  $402  $490  $3,183  $5,175 
Default Provisions
     Substantially all of the net properties of Detroit Edison are subject to the lien of its mortgage. Should Detroit Edison fail to timely pay its indebtedness under this mortgage, such failure may create cross defaults in the indebtedness of DTE Energy.
NOTE 9 — PREFERRED SECURITIES
remains unchanged. At December 31, 2008, Detroit Edison had approximately 6.75 million shares of preferred stock with a par value of $100 per share and 30 million shares of preference stock with a par value of $1 per share authorized, with no shares issued.
NOTE 10 — SHORT-TERM CREDIT ARRANGEMENTS AND BORROWINGS
Detroit Edison has a $206 million, five-year unsecured revolving credit facility expiring in October 2009, and a $69 million, five-year unsecured revolving credit agreement expiring in October 2010. The five-year credit facilities are with a syndicate of banks and may be utilized for general corporate borrowings, but are intended to provide liquidity support for our commercial paper program. Borrowings under the facilities are available at prevailing short-term interest rates. In addition, Detroit Edison has a short-term unsecured bank loan facility expiring in July 2009, under which $75 million was outstanding at December 31, 2008. The agreements require us to maintain a debt to total capitalization ratio of no more than 0.65 to 1. Should we have delinquent obligations of at least $50 million to any creditor, such delinquency will be considered a default under our credit agreements.
Detroit Edison is currently in compliance with its covenants.
We had no outstanding commercial paper of as of December 31, 2008 and $181 million at December 31, 2007.
The weighted average interest rate for short-term borrowings were 1.3% at December 31, 2008 and 5.4% at December 31, 2007.

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Detroit Edison terminated a $200 million short-term financing agreement secured by customer accounts receivable in 2008.
NOTE 11 — CAPITAL AND OPERATING LEASES
Lessee— We lease various assets under capital and operating leases, including coal cars, computers, vehicles and other equipment. The lease arrangements expire at various dates through 2023.
Future minimum lease payments under non-cancelable leases at December 31, 2008 were:
         
  Capital  Operating 
(in Millions) Leases  Leases 
2009 $11  $27 
2010  9   21 
2011  7   20 
2012  5   22 
2013  5   18 
Thereafter  12   91 
       
Total minimum lease payments  49  $199 
        
Less imputed interest  (8)    
        
Present value of net minimum lease payments  41     
Less current portion  (8)    
        
Non-current portion $33     
        
Rental expense for operating leases was $39 million in 2008, $48 million in 2007, and $44 million in 2006.
NOTE 12 — FAIR VALUE
Effective January 1, 2008, the Company adopted SFAS No. 157. This Statement defines fair value, establishes a framework for measuring fair value and expands the disclosures about fair value measurements. The Company has elected the option to defer the effective date of SFAS No. 157 as it pertains to non-financial assets and liabilities to January 1, 2009.
SFAS No. 157 defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date in a principal or most advantageous market. Fair value is a market-based measurement that is determined based on inputs, which refer broadly to assumptions that market participants use in pricing assets or liabilities. These inputs can be readily observable, market corroborated or generally unobservable inputs. The Company makes certain assumptions it believes that market participants would use in pricing assets or liabilities, including assumptions about risk, and the risks inherent in the inputs to valuation techniques. Credit risk of the Company and its counterparties is incorporated in the valuation of assets and liabilities through the use of credit reserves, the impact of which is immaterial for the year ended December 31, 2008. The Company believes it uses valuation techniques that maximize the use of observable market-based inputs and minimize the use of unobservable inputs.
SFAS No. 157 establishes a fair value hierarchy, which prioritizes the inputs to valuation techniques used to measure fair value in three broad levels. The fair value hierarchy gives the highest priority to quoted prices (unadjusted) in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). In some cases, the inputs used to measure fair value might fall in different levels of the fair value hierarchy. SFAS No. 157 requires that assets and liabilities be classified in their entirety based on the lowest level of input that is significant to the fair value measurement in its entirety. Assessing the significance of a particular input may require judgment considering factors specific to the asset or liability, and may affect the valuation of the asset or liability and its placement within the fair value hierarchy. The Company classifies fair value balances based on the fair value hierarchy defined by SFAS No. 157 as follows:
Level 1 — Consists of unadjusted quoted prices in active markets for identical assets or liabilities that the Company has reserves for the ability to access asentire amount of the reporting date.

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Level 2 — Consists of inputs other than quoted prices included within Level 1 that are directly observable for the asset or liability or indirectly observable through corroboration with observable market data.
Level 3 — Consists of unobservable inputs for assets or liabilities whose fair value is estimated based on internally developed models or methodologies using inputs that are generally less readily observable and supported by little, if any, market activity at the measurement date. Unobservable inputs are developed based on the best available information and subject to cost-benefit constraints.
The following table presents assets and liabilities measured and recorded at fair value on a recurring basis as of December 31, 2008:
                 
              Net Balance at 
(in Millions) Level 1  Level 2  Level 3  December 31, 2008 
Assets:
                
Cash equivalents $9  $  $  $9 
Nuclear decommissioning trusts and other investments  464   310      774 
Derivative assets        4   4 
             
Total $473  $310  $4  $787 
             
                 
Liabilities:
                
Derivative liabilities     (1)     (1)
             
Total $  $(1) $  $(1)
             
Net Assets (Liabilities) at December 31, 2008 $473  $309  $4  $786 
             
The following table presents the fair value reconciliation of Level 3 derivative assets and liabilities measured at fair value on a recurring basis for the year ended December 31, 2008:
     
(in Millions) Derivatives 
Asset balance as of January 1, 2008 $4 
Changes in fair value recorded in regulatory liabilities  2 
Changes in fair value recorded in other comprehensive income   
Purchases, issuances and settlements  (2)
Transfers in/out of Level 3   
    
Asset balance as of December 31, 2008 $4 
    
The amount of total gains included in net income attributed to the change in unrealized gains (losses) related to assets and liabilities held at December 31, 2008 $ 
    
Net gains of $2 million related to Level 3 derivative assets and liabilities are reported in regulatory liabilities for the year ended December 31, 2008.
Cash Equivalents
Cash equivalents include investments with maturities of three months or less when purchased. The cash equivalents shown in the fair value table are comprised of investments in money market funds. The fair values of the shares of these funds are based on observable market prices and, therefore, have been categorized as Level 1 in the fair value hierarchy.
Nuclear Decommissioning Trusts
The trust fund investments have been established to satisfy Detroit Edison’s nuclear decommissioning obligations. The nuclear decommissioning trust fund investments hold debt and equity securities directly and indirectly through commingled funds and institutional mutual funds. The commingled funds and institutional mutual funds which hold exchange-traded equity or debt securities are valued using quoted prices in actively traded markets. Non-exchange traded fixed income securities are valued based upon quotations available from brokers or pricing services. For

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non-exchange traded fixed income securities, the trustees receive prices from pricing services. A primary price source is identified by asset type, class or issue for each security. The trustees monitor prices supplied by pricing services and may use a supplemental price source or change the primary price source of a given security if the trustees challenge an assigned price and determine that another price source is considered to be preferable. Detroit Edison has obtained an understanding of how these prices are derived, including the nature and observability of the inputs used in deriving such prices. Additionally, Detroit Edison selectively corroborates the fair values of securities by comparison of market-based price sources.
Derivative Assets and Liabilities
Derivative assets and liabilities are comprised of physical and financial derivative contracts, including forwards, options and financial transmission rights. Various inputs are used to value derivatives depending on the type of contract and availability of market data. Exchange-traded derivative contracts are valued using quoted prices in active markets. Other derivative contracts are valued based upon a variety of inputs including commodity market prices, interest rates, credit ratings, default rates, market-based seasonality and basis differential factors. Mathematical valuation models are used for derivatives for which external market data is not readily observable.
Fair Value of Financial Instruments
The fair value of financial instruments is determined by using various market data and other valuation techniques. The table below shows the fair value relative to the carrying value for long-term debt securities. The carrying value of certain other financial instruments, such as notes payable, customer deposits and notes receivable approximate fair value and are not shown. As of December 31, 2008, the Company had approximately $747 million of tax exempt securities insured by insurers. Since December 31, 2007, overall credit market conditions have resulted in credit rating downgrades and may result in future credit rating downgrades for these insurers. The Company does not expect the impact on interest rates or fair value to be material.
                 
  2008  2007 
  Fair Value  Carrying Value  Fair Value  Carrying Value 
Long-Term Debt $5.0 billion $5.2 billion $4.8 billion $4.7 billion
NOTE 13 — FINANCIAL AND OTHER DERIVATIVE INSTRUMENTS
We comply with SFAS No. 133,Accounting for Derivative Instruments and Hedging Activities, as amended and interpreted. Under SFAS No. 133, all derivatives are recognized on the Consolidated Statements of Financial Position at their fair value unless they qualify for certain scope exceptions, including normal purchases and normal sales exception. Further, derivatives that qualify and are designated for hedge accounting are classified as either hedges of a forecasted transaction or the variability of cash flows to be received or paid related to a recognized asset or liability (cash flow hedge), or as hedges of the fair value of a recognized asset or liability or of an unrecognized firm commitment (fair value hedge). For cash flow hedges, the portion of the derivative gain or loss that is effective in offsetting the change in the value of the underlying exposure is deferred in Accumulated other comprehensive income and later reclassified into earnings when the underlying transaction occurs. For fair value hedges, changes in fair values for both the derivative and the underlying hedged exposure are recognized in earnings each period. Gains and losses from the ineffective portion of any hedge are recognized in earnings immediately. For derivatives that do not qualify or are not designated for hedge accounting, changes in the fair value are recognized in earnings each period.
Our primary market risk exposure is associated with commodity prices and credit. We have risk management policies to monitor and decrease market risks. We use derivative instruments to manage some of the exposure. We do not hold or issue derivative instruments for trading purposes.

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Commodity Price Risk
Detroit Edison uses forward energy and capacity contracts to manage changes in the price of electricity and fuel. Contracts that are derivatives and meet the normal purchases and sales exemption are accounted for under the accrual method. Other derivative contracts are recoverable through the PSCR mechanism when realized. This results in the deferral of unrealized gains and losses or regulatory assets or liabilities until realized.
Credit Risk
We are exposed to credit risk if customers or counterparties do not comply with their contractual obligations. We maintain credit policies that significantly minimize overall credit risk. These policies include an evaluation of potential customers’ and counterparties’ financial condition, credit rating, collateral requirements or other credit enhancements such as letters of credit or guarantees. We generally use standardized agreements that allow the netting of positive and negative transactions associated with a single counterparty.
The Company maintains a provision for credit losses based on factors surrounding the credit risk of its customers, historical trends, and other information. Based on the Company’s credit policies and its December 31, 2008 provision for credit losses, the Company’s exposure to counterparty nonperformance is not expected to result in material effects on the Company’s financial statements.
NOTE 14 — COMMITMENTS AND CONTINGENCIES
Environmental
Air— Detroit Edison is subject to EPA ozone transport and acid rain regulations that limit power plant emissions of sulfur dioxide and nitrogen oxides. Since 2005, EPA and the State of Michigan issued additional emission reduction regulations relating to ozone, fine particulate, regional haze and mercury air pollution. The new rules will lead to additional controls on fossil-fueled power plants to reduce nitrogen oxide, sulfur dioxide and mercury emissions. To comply with these requirements, Detroit Edison has spent approximately $1.4 billion through 2008. The Company estimates future undiscounted capital expenditures at up to $100 million in 2009 and up to $2.8 billion of additional capital expenditures through 2018 based on current regulations.
Water— In response to an EPA regulation, Detroit Edison is required to examine alternatives for reducing the environmental impacts of the cooling water intake structures at several of its facilities. Based on the results of the studies to be conducted over the next several years, Detroit Edison may be required to install additional control technologies to reduce the impacts of the water intakes. Initially, it was estimated that Detroit Edison could incur up to approximately $55 million over the four to six years subsequent to 2008 in additional capital expenditures to comply with these requirements. However, a January 2007 circuit court decision remanded back to the EPA several provisions of the federal regulation that may result in a delay in compliance dates. The decision also raised the possibility that Detroit Edison may have to install cooling towers at some facilities at a cost substantially greater than was initially estimated for other mitigative technologies. In 2008, the Supreme Court agreed to review the remanded cost-benefit analysis provision of the rule. A decision is expected in the first quarter of 2009. Concurrently, the EPA continues to develop a revised rule, which is expected to be published in early 2009.
Contaminated Sites— Detroit Edison conducted remedial investigations at contaminated sites, including three former manufactured gas plant (MGP) sites, the area surrounding an ash landfill and several underground and aboveground storage tank locations. The findings of these investigations indicated that the estimated cost to remediate these sites is expected to be incurred over the next several years. At December 31, 2008 and 2007, the Company had $12 million and $15 million, respectively, accrued for remediation.bank loan guarantee.
Labor Contracts
There are several bargaining units for the Company’s union employees. The majority of our union employees are under contracts that expire in June 2010 and August 2012.

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Purchase Commitments
Detroit Edison has an Energy Purchase Agreement to purchase electricity from the Greater Detroit Resource Recovery Authority (GDRRA). Under the Agreement, Detroit Edison purchased steam through 2008. The term of the Energy Purchase Agreement for the purchase of electricity runs through June 2024. We purchased approximately $42 million of steam and electricity in each of 2008, 2007 and 2006. We estimate electric purchase commitments from 2009 through 2024 will not exceed $300 million in the aggregate.
In January 2003, the Company sold the steam heating business of Detroit Edison to Thermal Ventures II, LP. Under the terms of sale, Detroit Edison guaranteed bank loans of $13 million that Thermal Ventures II, LP used for capital improvements to the steam heating system. At December 31, 2008 and 2007, the Company had reserves of $13 million related to the bank loan guarantee.
As of December 31, 2008,2009, the Company was party to numerous long-term purchase commitments relating to a variety of goods and services required for the Company’s business. These agreements primarily consist of fuel supply commitments and energy trading contracts. The Company estimates that these commitments will be approximately $1.2$1.5 billion from 20092010 through 2024.2025. The Company also estimates that 20092010 capital expenditures will be approximately $800$940 million. The Company has made certain commitments in connection with expected capital expenditures. Certain of these commitments are with variable interest entities where the Company determined it was not the primary beneficiary as it does not have significant exposure to losses.
Bankruptcies
We purchaseThe Company purchases and sellsells electricity from and to numerous companies operating in the steel, automotive, energy, retail and other industries. Certain of ourits customers have filed for bankruptcy protection under Chapter 11 of the U.S. Bankruptcy Code. WeThe Company regularly reviewreviews contingent matters relating to these customers and ourits purchase and sale contracts and we recordrecords provisions for amounts considered at risk of probable loss. We believe our previouslyThe Company believes its accrued amounts are adequate for probable losses.loss. The final resolution of these matters may have a material effect on ourits consolidated financial statements.
We provideThe Company provides services to the domestic automotive industry, including GM, Ford Motor Company (Ford) and Chrysler and many of their vendors and suppliers. Chrysler filed for bankruptcy protection on April 30, 2009. We have reserved approximately $7 million of pre-petition accounts receivable related to Chrysler as of December 31, 2009. GM andfiled for bankruptcy protection on June 1, 2009. We have not reserved or written off any pre-petition accounts receivable related to GM as of December 31, 2009. Closing of GM or Chrysler have recently received loans fromplants or other facilities that operate within Detroit Edison’s service territory will also negatively impact the U.S. Government to provide them with the working capital necessary to continue to operateCompany’s operating revenues in the short term.future periods. In February 2009, GM and Chrysler submitted viability plans to the U.S. Government indicating that additional loans were necessary to continue operations in the short term. Further plant closures, bankruptcies or a federal government mandated restructuring program could have a significant impact on our results. As the circumstances surrounding the viabilityeach represented two percent of these entities are dynamic and uncertain, we continue to monitor developments as they occur.its annual electric sales volumes, respectively.

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Other
We areThe Company is involved in certain other legal, regulatory, administrative and environmental proceedings before various courts, arbitration panels and governmental agencies concerning claims arising in the ordinary course of business. These proceedings include certain contract disputes, additional environmental reviews and investigations, audits, inquiries from various regulators, and pending judicial matters. WeThe Company cannot predict the final disposition of such proceedings. WeThe Company regularly reviewreviews legal matters and recordrecords provisions for claims that are considered probable of loss. The resolution of pending proceedings is not expected to have a material effect on ourthe Company’s operations or financial statements in the periodperiods they are resolved.
See Note 410 for a discussion of contingencies related to Regulatory Matters.
NOTE 1517 — RETIREMENT BENEFITS AND TRUSTEED ASSETS
Adoption of SFAS No. 158,Employers’ Accounting for Defined Benefit Pension and Other Postretirement PlansMeasurement Date
In September 2006, the FASB issued SFAS No. 158,Employers’ Accounting for Defined Benefit Pension and Other Postretirement Plans — an Amendment of FASB Statements No. 87, 88, 106, and 132(R). SFAS No.158 requires companies to (1) recognize the over funded or under funded status of defined benefit pension and other

54


postretirement plans in its financial statements, (2) recognize as a component of other comprehensive income, net of tax, the actuarial gains or losses and the prior service costs or credits that arise during the period but are not immediately recognized as components of net periodic benefit cost, (3) recognize adjustments to other comprehensive income when the actuarial gains or losses, prior service costs or credits, and transition assets or obligations are recognized as components of net periodic benefit cost, (4) measure postretirement benefit plan assets and plan obligations as of the date of the employer’s statement of financial position, and (5) disclose additional information in the notes to financial statements about certain effects on net periodic benefit cost in the upcoming fiscal year that arise from delayed recognition of the actuarial gains and losses and the prior service cost and credits.
The requirement to recognize the funded status of a postretirement benefit plan and the related disclosure requirements is effective for fiscal years ending after December 15, 2006. The Company adopted this requirement as of December 31, 2006. In 2008, as required by SFAS 158, the Company changed the measurement date of its pension and postretirement benefit plans from November 30 to December 31. As a result, the Company recognized an adjustment of $15 million ($9 million after-tax) to retained earnings, which represents approximately one month of pension and other postretirement benefit costs for the period from December 1, 2007 to December 31, 2008. Retrospective application of the changes required by SFAS No. 158 is prohibited; therefore certain disclosures below are not comparable.
Detroit Edison received approval from the MPSC to record the impact of the adoption of SFAS 158 provision related to the funded status as a regulatory asset since the traditional rate setting process allows for the recovery of pension and other postretirement plan costs.
Measurement Date
All amounts and balances reported in the following tables as of December 31, 20082009 and December 31, 20072008 are based on measurement dates of December 31, 20082009 and November 30, 2007,December 31, 2008, respectively.
Pension Plan Benefits
Detroit Edison participates in various plans that provide pension and other postretirement benefits for DTE Energy and its affiliates. Detroit Edison is allocated net periodic benefit costs for its share of the amounts of the combined plans. In prior years, Detroit Edison served as the plan sponsor for a pension plan that changed in 2008 to be sponsored by DTE Energy Corporate Services, LLC, (LLC) a subsidiary of DTE Energy. The change in plan sponsorship did not change the pension cost or contributions allocated to Detroit Edison, or the benefits of plan participants.
The Company’s policy is to fund pension costs by contributing amounts consistent with the Pension Protection Act of 2006 provisions and additional amounts we deem appropriate. In December 2008, the Company contributed $100 million to the pension plans. Also, the Company contributed $50 million to its pension plans in January 2009. The Company anticipates making up to a $250$200 million contribution to the pension plans in 2009.2010.
Net pension cost includes the following components:
                        
 Pension Plans  Pension Plans 
(in Millions) 2008 2007 2006  2009 2008 2007 
Service cost $45 $51 $51  $43 $45 $51 
Interest cost 148 138 136  158 148 138 
Expected return on plan assets  (163)  (148)  (135)  (165)  (163)  (148)
Amortization of:  
Net actuarial loss 27 46 45  38 27 46 
Prior service cost 5 6 8  7 5 6 
Special termination benefits  8 38    8 
              
Net pension cost $62 $101 $143  $81 $62 $101 
              
Special termination benefits in the above tables represent costs associated with our Performance Excellence Process.
         
  Pension Plans 
(in Millions) 2009  2008 
Other changes in plan assets and benefit obligations recognized in other comprehensive income and regulatory assets
        
Net actuarial loss $177  $665 
Amortization of net actuarial loss  (38)  (27)
Prior service cost     12 
Amortization of prior service cost  (7)  (6)
       
Total recognized in other comprehensive income and regulatory assets $132  $644 

5554


                
 Pension Plans  Pension Plans 
(in Millions) 2008 2007  2009 2008 
Other changes in plan assets and benefit obligations recognized in other comprehensive income and regulatory assets
 
Net actuarial loss (gain) $665 $(187)
Amortization of net actuarial (gain)  (27)  (45)
Prior service cost 12 1 
Amortization of prior service cost  (6)  (7)
     
Total recognized in other comprehensive income and regulatory assets $644 $(238)
          
Total recognized in net periodic pension cost and other comprehensive income and regulatory assets $707 $(137) $213 $707 
Estimated amounts to be amortized from accumulated other comprehensive income and regulatory assets into net periodic benefit cost during next fiscal year  
Net actuarial loss $37 $27  $70 $37 
Prior service cost 7 6  5 7 
The following table reconciles the obligations, assets and funded status of the plan as well as the amount recognized as pension liability in the consolidated statementConsolidated Statements of financial positionFinancial Position at December 31. During 2008, the sponsor of a pension plan changed from Detroit Edison to the LLC. As a result, as of December 31, 2009 and 2008, the tables below include assets and obligations for Detroit Edison only. At December 31, 2007,the beginning of 2008, as Detroit Edison was the pension plan sponsor, the tables below included assets and obligations for Detroit Edison and all affiliates participating in the combined plan.
                
 Pension Plans  Pension Plans 
(in Millions) 2008 2007  2009 2008 
Accumulated benefit obligation, end of year
 $2,206 $2,567  $2,490 $2,206 
          
  
Change in projected benefit obligation Projected benefit obligation, beginning of year $2,754 $2,920  $2,368 $2,754 
Adjustment due to plan sponsorship change  (385)     (385)
December 2007 benefit payments  (15)     (15)
Service cost 45 55  43 45 
Interest cost 149 162  158 149 
Actuarial (gain) loss  (53)  (189) 264  (53)
Benefits paid  (156)  (203)  (156)  (156)
Measurement date change 16    16 
Special termination benefits  8 
Plan amendments 13 1   13 
          
Projected benefit obligation, end of year
 $2,368 $2,754  $2,677 $2,368 
          
  
Change in plan assets
  
Plan assets at fair value, beginning of year $2,599 $2,373  $1,387 $2,599 
Adjustment due to plan sponsorship change  (752)     (752)
December 2007 contributions 150    150 
December 2007 payments  (15)     (15)
Actual return on plan assets  (557) 246  252  (557)
Company contributions 104 183  204 104 
Measurement date change 14    14 
Benefits paid  (156)  (203)  (156)  (156)
          
 
Plan assets at fair value, end of year $1,387 $2,599  $1,687 $1,387 
     
 
Funded status of the plans $ $(155)
December contribution  150 
          
Funded status, end of year $(981) $(5) $(990) $(981)
          
 
Amount recorded as: 
Current liabilities $(3) $(3)
Noncurrent liabilities  (987)  (978)
     
 $(990) $(981)
     
 
Amounts recognized in regulatory assets (see Note 10)
 
Net actuarial loss $1,241 $1,106 
Prior service cost 20 27 
     
Regulatory assets $1,261 $1,133 
     

5655


         
  Pension Plans 
(in Millions) 2008  2007 
Amount recorded as:        
Noncurrent assets $  $372 
Current liabilities  (3)  (3)
Noncurrent liabilities  (978)  (374)
       
  $(981) $(5)
       
         
Amounts recognized in regulatory assets
        
Net actuarial loss $1,106  $454 
Prior service cost  27   15 
       
Regulatory assets $1,133  $469 
       
The aggregate accumulated benefit obligation, projected benefit obligation and fair value of plan assets as of December 31, 2008 for plans with benefit obligations in excess of plan assets was $2.2 billion, $2.4 billion and $1.4 billion, respectively.
The aggregate accumulated benefit obligation and projected benefit obligation of plan assets as of December 31, 2007 for plans with benefit obligations in excess of plan assets was $48 million and $50 million, respectively. There was no fair value related to plans with benefit obligations in excess of plan assets as of December 31, 2007. The aggregate accumulated benefit obligation, projected benefit obligation and fair value of plan assets as of December 31, 2007 for plans with plan assets in excess of benefit obligations was $2.5 billion, $2.7 billion and $2.6 billion, respectively.
Assumptions used in determining the projected benefit obligation and net pension costs are listed below:
                        
 2008 2007 2006 2009 2008 2007
Projected benefit obligation
  
Discount rate  6.90%  6.50%  5.70%  5.90%  6.90%  6.50%
Rate of compensation increase  4.00%  4.00%  4.00%  4.00%  4.00%  4.00%
  
Net pension costs
  
Discount rate  6.50%  5.70%  5.90%  6.90%  6.50%  5.70%
Rate of compensation increase  4.00%  4.00%  4.00%  4.00%  4.00%  4.00%
Expected long-term rate of return on Plan assets  8.75%  8.75%  8.75%
Expected long-term rate of return on plan assets  8.75%  8.75%  8.75%
At December 31, 2008,2009, the benefits related to the Company’s qualified and nonqualified pension plans expected to be paid in each of the next five years and in the aggregate for the five fiscal years thereafter are as follows:
                            
 2014 &      
(in Millions) 2009 2010 2011 2012 2013 thereafter Total(in Millions) 
2010 $161 
2011 165 
2012 169 
2013 175 
2014 180 
2015 - 2019 993 
     
Amount to be paid $156 $159 $163 $169 $173 $963 $1,783 
Total $1,843 
   
The Company employs a consistent formal process in determining the long-term rate of return for various asset classes. The CompanyManagement reviews historic financial market risks and returns and long-term historic relationships between the asset classes of equities, fixed income and other assets, consistent with the widely accepted capital market principle that asset classes with higher volatility generate a greater return over the long-term. Current market factors such as inflation, interest rates, asset class risks and asset class returns are evaluated and considered before long-term capital market assumptions are determined. The long-term portfolio return is also established employing a consistent formal process, with due consideration of diversification, active investment management and rebalancing. Peer data is reviewed to check for reasonableness.
The Company employs a total return investment approach whereby a mix of equities, fixed income and other investments are used to maximize the long-term return on plan assets consistent with prudent levels of risk.risk, with consideration given to the liquidity needs of the plan. The intent of this strategy is to minimize plan expenses over the long-term. Risk tolerance is established through consideration of future plan cash flows, plan funded status, and corporate financial considerations. The investment portfolio contains a diversified blend of equity, fixed income and other investments. Furthermore, equity investments are diversified across U.S. and non-U.S. stocks, growth and value investment styles, and large and small market capitalizations. Fixed income securities generally include corporate bonds of companies from diversified industries, mortgage-backed securities, and U.S. Treasuries. Other assets such as private equity and absolute returnhedge funds are used judiciously to enhance long termlong-term returns while improving portfolio diversification. Derivatives may be utilized in a risk controlled manner,

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to potentially increase the portfolio beyond the market value of invested assets and reduce portfolio investment risk. Investment risk is measured and monitored on an ongoing basis through annual liability measurements, periodic asset/liability studies, and quarterly investment portfolio reviews.

56


Target allocations for plan assets as of December 31, 2009 are listed below:
U.S. Large Cap Equity Securities25%
U.S. Small Cap and Mid Cap Equity Securities6
Non U.S. Equity Securities14
Fixed Income Securities26
Hedge Funds and Similar Investments20
Private Equity and Other6
Short-Term Investments3
100%
The plans’ weighted-average asset allocationsfair values of the Company’s plans assets at December 31, 2009, by asset category at December 31 wereare as follows:
             
  2008 2007 Target
U.S. equity securities  31%  48%  35%
Non U.S. equity securities  16%  18%  20%
Debt securities  24%  19%  20%
Hedge funds and similar  22%  12%  20%
Private equity and other  7%  3%  5%
             
   100%  100%  100%
             
Fair Value Measurements at
December 31, 2009
                 
              Balance at 
(in Millions)(a) Level 1  Level 2  Level 3  December 31, 2009 
Asset Category:
                
Short-term investments (b) $  $42  $  $42 
Equity securities                
U.S. Large Cap(c)  436   20      456 
U.S. Small/Mid Cap(d)  101   2      103 
Non U.S(e)  153   79      232 
Fixed income securities(f)  31   397      428 
Other types of investments                
Hedge Funds and Similar Investments(g)        320   320 
Private Equity and Other(h)        106   106 
             
Total $721  $540  $426  $1,687 
             
(a)See Note 4 — Fair Value for a description of levels within the fair value hierarchy.
(b)This category predominantly represents certain short-term fixed income securities and money market investments that are managed in separate accounts or commingled funds. Pricing for investments in this category are obtained from quoted prices in actively traded markets or valuations from brokers or pricing services.
(c)This category comprises both actively and not actively managed portfolios that track the S&P 500 low cost equity index funds. Investments in this category are exchange-traded securities whereby unadjusted quote prices can be obtained. Exchange-traded securities held in a commingled fund are classified as Level 2 assets.
(d)This category represents portfolios of small and medium mid capitalization domestic equities. Investments in this category are exchange-traded securities whereby unadjusted quote prices can be obtained. Exchange-traded securities held in a commingled fund are classified as Level 2 assets.
(e)This category primarily consists of portfolios of non-U.S. developed and emerging market equities. Investments in this category are exchange-traded securities whereby unadjusted quote prices can be obtained. Exchange-traded securities held in a commingled fund are classified as Level 2 assets.
(f)This category includes corporate bonds from diversified industries, U.S. Treasuries, and mortgage backed securities. Pricing for investments in this category is obtained from quoted prices in actively traded markets and quotations from broker or pricing services. Non-exchange traded securities and exchange-traded securities held in commingled funds are classified as Level 2 assets.
(g)This category includes a diversified group of funds and strategies that attempt to capture financial market inefficiencies. Pricing for investments in this category is based on limited observable inputs as there is little, if any, publicly available pricing. Valuations for assets in this category may be based on relative publicly-traded securities, derivatives, and privately-traded securities.
(h)This category includes a diversified group of funds and strategies that primarily invests in private equity partnerships. This category also includes investments in timber and private mezzanine debt. Pricing for investments in this category is based on limited observable inputs as there is little, if any, publicly available

57


pricing. Valuations for assets in this category may be based on discounted cash flow analyses, relative publicly-traded comparables and comparable transactions.
The pension trust holds debt and equity securities directly and indirectly through commingled funds and institutional mutual funds. Exchange-traded debt and equity securities held directly are valued using quoted market prices in actively traded markets. The commingled funds and institutional mutual funds which hold exchange-traded equity or debt securities are valued based on underlying securities, using quoted prices in actively traded markets. Non-exchange traded fixed income securities are valued by the trustee based upon quotations available from brokers or pricing services. A primary price source is identified by asset type, class or issue for each security. The trustees monitor prices supplied by pricing services and may use a supplemental price source or change the primary price source of a given security if the trustees challenge an assigned price and determine that another price source is considered to be preferable. Detroit Edison has obtained an understanding of how these prices are derived, including the nature and observability of the inputs used in deriving such prices. Additionally, Detroit Edison selectively corroborates the fair values of securities by comparison of market-based price sources.
Fair Value Measurements Using Significant Unobservable Inputs (Level 3):
             
  Hedge Funds       
  and Similar  Private Equity    
(in Millions) Investments  and Other  Total 
Beginning Balance at January 1, 2009 $310  $105  $415 
Total realized/unrealized gains (losses)  20   (7)  13 
Purchases, sales and settlements  (10)  8   (2)
          
Ending Balance at December 31, 2009 $320  $106  $426 
          
             
The amount of total gains (losses) for the period attributable to the change in unrealized gains or losses related to assets still held at the end of the period $23  $(7) $16 
          
The Company also sponsors defined contribution retirement savings plans. Participation in one of these plans is available to substantially all represented and non-represented employees. The Company matches employee contributions up to certain predefined limits based upon eligible compensation and the employee’s contribution rate. The cost of these plans was $16 million in 2009, $16 million in 2008, and $17 million in 2007, and $23 million in 2006.2007.
Other Postretirement Benefits
The Company participates in plans sponsored by LLC that provide certain postretirement health care and life insurance benefits for employees who are eligible for these benefits. The Company’s policy is to fund certain trusts to meet our postretirement benefit obligations. Separate qualified Voluntary Employees Beneficiary Association (VEBA) trusts exist for represented and non-represented employees. In 2008, the Company made a cash contribution of $76 million to the postretirement benefit plans. At the discretion of management, subject to MPSC requirements, the Company may make up to a $90 million contribution to the VEBA trusts in 2009.2010.
Net postretirement cost includes the following components:
                        
(in Millions) 2008 2007 2006  2009 2008 2007 
Service cost $48 $48 $45  $45 $48 $48 
Interest cost 94 90 88  102 94 90 
Expected return on plan assets  (58)  (54)  (49)  (42)  (58)  (54)
Amortization of:  
Net loss 27 51 53  53 27 51 
Prior service costs 2 4 4  2 2 4 
Net transition obligation 2 7 7  2 2 7 
Special termination benefits  2 6    2 
              
Net postretirement cost $115 $148 $154  $162 $115 $148 
              

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Special termination benefits in the above tables represent costs associated with our Performance Excellence Process.
                
(in Millions) 2008 2007  2009 2008 
Other changes in plan assets and APBO recognized in regulatory assets
  
Net actuarial loss (gain) $237 $(216)
Amortization of net actuarial (gain)  (28)  (51)
Net actuarial (gain) loss $(38) $237 
Amortization of net actuarial loss  (52)  (28)
Prior service (credit)  (1)  (39)   (1)
Amortization of prior service cost  (2)  (4)  (2)  (2)
Amortization of transition (asset)  (2)  (7)  (2)  (2)
          
Total recognized in regulatory assets $204 $(317) $(94) $204 
          
 
Total recognized in net periodic pension cost and regulatory assets $319 $(169) $68 $319 
          
                
(in Millions)  
Estimated amounts to be amortized from regulatory assets into net periodic benefit cost during next fiscal year
  
Net actuarial loss $49 $27  $38 $49 
Prior service cost $2 $2  2 2 
Net transition obligation $2 $2  2 2 

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The following table reconciles the obligations, assets and funded status of the plans including amounts recorded as accrued postretirement cost in the consolidated statementConsolidated Statements of financial positionFinancial Position at December 31:
         
(in Millions) 2008  2007 
Change in accumulated post retirement benefit obligation during the year
        
Accumulated postretirement benefit obligation, beginning of year $1,479  $1,660 
December 2007 cash flow  (4)   
Service cost  48   48 
Interest cost  94   90 
Plan amendments  (1)  (39)
Actuarial gain  (7)  (214)
Measurement date change  11    
Benefits paid  (72)  (73)
Special termination benefits     2 
Medicare Part D  5   5 
       
Accumulated postretirement benefit obligation , end of year $1,553  $1,479 
       
         
Change in plan assets during the year
        
Plan assets at fair value, beginning of year $658  $636 
December 2007 cash flow  1    
Actual return on plan assets  (189)  56 
Measurement date change  5    
Company contributions  76   36 
Benefits paid  (73)  (70)
       
Plan assets at fair value, end of year $478  $658 
       
                
(in Millions) 2008 2007  2009 2008 
Funded status of the Plans, as of November 30 $ $(821)
December adjustment  5 
Change in accumulated post retirement benefit obligation during the year
 
Accumulated postretirement benefit obligation, beginning of year $1,553 $1,479 
December 2007 cash flow   (4)
Service cost 45 48 
Interest cost 102 94 
Plan amendments   (1)
Actuarial (gain)/loss 21  (7)
Measurement date change  11 
Benefits paid  (75)  (72)
Medicare Part D 4 5 
     
Accumulated postretirement benefit obligation , end of year $1,650 $1,553 
     
 
Change in plan assets during the year
 
Plan assets at fair value, beginning of year $478 $658 
December 2007 cash flow  1 
Actual return on plan assets 99  (189)
Measurement date change  5 
Company contributions 90 76 
Benefits paid  (75)  (73)
     
Plan assets at fair value, end of year $592 $478 
     
 
      
Funded status, as of December 31 $(1,075) $(816) $(1,058) $(1,075)
     
      
Non-current liabilities $(1,075) $(816) $(1,058) $(1,075)
          
  
Amounts recognized in regulatory assets 
Amounts recognized in regulatory assets (see Note 10)
 
Net actuarial loss $600 $391  $510 $600 
Prior service cost $ $3   (2)  
Net transition obligation $9 $11  7 9 
          
 $609 $405  $515 $609 
          
Assumptions used in determining the projected benefit obligation and net benefit costs are listed below:
                        
 2008 2007 2006 2009 2008 2007 
Projected Benefit Obligation
  
Discount rate  6.90%  6.50%  5.70%  5.90%  6.90%  6.50%
  
Net Benefit Costs
  
Discount rate  6.50%  5.70%  5.90%  6.90%  6.50%  5.70%
Expected long-term rate of return on Plan assets  8.75%  8.75%  8.75%  8.75%  8.75%  8.75%
Health care trend rate pre-65  7.00%  8.00%  9.00%  7.00%  7.00%  8.00%
Health care trend rate post-65  6.00%  7.00%  8.00%  7.00%  6.00%  7.00%
Ultimate health care trend rate  5.00%  5.00%  5.00%  5.00%  5.00%  5.00%
Year in which ultimate reached 2011 2011 2011  2016 2011 2011 
A one-percentage-point increase in health care cost trend rates would have increased the total service cost and interest cost components of benefit costs by $23$24 million and increased the accumulated benefit obligation by $198$217 million at December 31, 2008.2009. A one-percentage-point decrease in the health care cost trend rates would have decreased the total service and interest cost components of benefit costs by $19$20 million and would have decreased the accumulated benefit obligation by $168$185 million at December 31, 2008.2009.

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At December 31, 2008,2009, the benefits expected to be paid, including prescription drug benefits, in each of the next five years and in the aggregate for the five fiscal years thereafter are as follows:
                             
                      2014 &  
(in Millions) 2009 2010 2011 2012 2013 thereafter Total
   
Amount to be paid $96  $102  $105  $106  $110  $595  $1,114 
The process used in determining the long-term rate of return for assets and the investment approach for the other postretirement benefits plans is similar to those previously described for the pension plans.
The plans’ weighted-average asset allocations and related targets by asset category at December 31 were as follows:
             
  2008 2007 Target
U.S. equity securities  39%  50%  27%
Non U.S. equity securities  17%  18%  24%
Debt securities  26%  20%  16%
Hedge funds and similar  13%  11%  28%
Private equity and other  5%  1%  5%
             
   100%  100%  100%
             
     
(in Millions)   
2010 $92 
2011  97 
2012  100 
2013  104 
2014  108 
2015 - 2019  611 
    
Total $1,112 
    
In December 2003, the Medicare Act was signed into law which provides for a non-taxable federal subsidy to sponsors of retiree health care benefit plans that provide a benefit that is at least “actuarially equivalent” to the benefit established by law. The effects of the subsidy reduced net periodic postretirement benefit costs by $17 million in 2009, $11 million in 2008 and $12 million in 2007 and $16 million in 2006.2007.
At December 31, 2008,2009, the gross amount of federal subsidies expected to be received in each of the next five years and in the aggregate for the five fiscal years thereafter was as follows:
                            
 2014 &      
(in Millions) 2009 2010 2011 2012 2013 thereafter Total(in Millions) 
2010 $5 
2011 6 
2012 6 
2013 6 
2014 7 
2015 - 2019 39 
     
Amount to be paid $3 $4 $4 $5 $5 $29 $50 
Total $69 
   
The process used in determining the long-term rate of return for assets and the investment approach for the other postretirement benefits plans is similar to those previously described for the pension plans.
Target allocations for plan assets as of December 31, 2009 are listed below:
U.S. Large Cap Equity Securities20%
U.S. Small Cap and Mid Cap Equity Securities5
Non U.S. Equity Securities20
Fixed Income Securities25
Hedge Funds and Similar Investments20
Private Equity and Other10
Short-Term Investments0
100%
The fair values of the Company’s plan assets at December 31, 2009, by asset category are as follows:
Fair Value Measurements at
December 31, 2009
                 
              Balance at 
(in Millions)(a) Level 1  Level 2  Level 3  December 31, 2009 
Asset Category:
                
Short-term investments(b) $  $12  $  $12 
Equity securities                
U.S. Large Cap(c)  102   55      157 
U.S. Small/Mid Cap(d)  32   34      66 
Non U.S(e)  50   47      97 
Fixed income securities(f)  5   160      165 
Other types of investments                
Hedge Funds and Similar Investments(g)        63   63 
Private Equity and Other(h)        32   32 
             
Total $189  $308  $95  $592 
             
(a)See Note 4 — Fair Value for a description of levels within the fair value hierarchy.

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(b)This category predominantly represents certain short-term fixed income securities and money market investments that are managed in separate accounts or commingled funds. Pricing for investments in this category are obtained from quoted prices in actively traded markets or valuations from brokers or pricing services.
(c)This category comprises both actively and not actively managed portfolios that track the S&P 500 low cost equity index funds. Investments in this category are exchange-traded securities whereby unadjusted quote prices can be obtained. Exchange-traded securities held in a commingled fund are classified as Level 2 assets.
(d)This category represents portfolios of small and medium mid capitalization domestic equities. Investments in this category are exchange-traded securities whereby unadjusted quote prices can be obtained. Exchange-traded securities held in a commingled fund are classified as Level 2 assets.
(e)This category primarily consists of portfolios of non-U.S. developed and emerging market equities. Investments in this category are exchange-traded securities whereby unadjusted quote prices can be obtained. Exchange-traded securities held in a commingled fund are classified as Level 2 assets.
(f)This category includes corporate bonds from diversified industries, U.S. Treasuries, and mortgage backed securities. Pricing for investments in this category is obtained from quoted prices in actively traded markets and quotations from broker or pricing services. Non-exchange traded securities and exchange-traded securities held in commingled funds are classified as Level 2 assets.
(g)This category includes a diversified group of funds and strategies that attempt to capture financial market inefficiencies. Pricing for investments in this category is based on limited observable inputs as there is little, if any, publicly available pricing. Valuations for assets in this category may be based on relative publicly-traded securities, derivatives, and privately-traded securities.
(h)This category includes a diversified group of funds and strategies that primarily invests in private equity partnerships. This category also includes investments in timber and private mezzanine debt. Pricing for investments in this category is based on limited observable inputs as there is little, if any, publicly available pricing. Valuations for assets in this category may be based on discounted cash flow analyses, relative publicly-traded comparables and comparable transactions.
The VEBA trusts hold debt and equity securities directly and indirectly through commingled funds and institutional mutual funds. Exchange-traded debt and equity securities held directly are valued using quoted market prices in actively traded markets. The commingled funds and institutional mutual funds which hold exchange-traded equity or debt securities are valued based on underlying securities, using quoted prices in actively traded markets. Non-exchange traded fixed income securities are valued by the trustee based upon quotations available from brokers or pricing services. A primary price source is identified by asset type, class or issue for each security. The trustees monitor prices supplied by pricing services and may use a supplemental price source or change the primary price source of a given security if the trustees challenge an assigned price and determine that another price source is considered to be preferable. Detroit Edison has obtained an understanding of how these prices are derived, including the nature and observability of the inputs used in deriving such prices. Additionally, Detroit Edison selectively corroborates the fair values of securities by comparison of market-based price sources.
Fair Value Measurements Using Significant Unobservable Inputs (Level 3):
             
  HedgeFunds Similar  Private Equityand   
(in Millions) Investments  Other  Total 
Beginning Balance at January 1, 2009 $52  $26  $78 
Total realized/unrealized gains (losses)  4   3   7 
Purchases, sales and settlements  7   3   10 
          
Ending Balance at December 31, 2009 $63  $32  $95 
          
             
The amount of total gains (losses) for the period attributable to the change in unrealized gains or losses related to assets still held at the end of the period $4  $2  $6 
          

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NOTE 1618 — SUPPLEMENTAL CASH FLOW INFORMATION
A detailed analysis of the changes in assets and liabilities that are reported in the Consolidated Statements of Cash Flows follows:
             
(in Millions) 2009  2008  2007 
Changes in Assets and Liabilities, Exclusive of Changes Shown Separately
            
Accounts receivable, net $16  $72  $(163)
Inventories  30   (24)  (47)
Recoverable pension and postretirement costs  (13)  (852)  594 
Accrued pension liability — affiliates  9   598   (330)
Accounts payable  (56)  (82)  73 
Accrued power supply cost recovery revenue  7   82   41 
Accrued payroll  2   3   (50)
Income taxes payable  (109)  (29)  10 
General taxes     (12)  4 
Risk management and trading activities  8   1   (4)
Accrued postretirement liability — affiliates  (17)  259   (239)
Other assets  (26)  3   (387)
Other liabilities  110   99   285 
          
  $(39) $118  $(213)
          
Supplementary cash and non-cash information for the years ended December 31 were as follows:
             
(in Millions) 2009  2008  2007 
Cash Paid For            
Interest (excluding interest capitalized) $328  $290  $295 
Income taxes  319   24   280 

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NOTE 19 — RELATED PARTY TRANSACTIONS
We haveThe Company has agreements with affiliated companies to sell energy for resale, purchase power, provide fuel supply services, and provide power plant operation and maintenance services. We have an agreementThe Company has agreements with certain DTE Energy affiliates where we charge them for their use of the shared capital assets of the Company. Prior to March 31, 2007, under a service agreement with DTE Energy, various DTE Energy affiliates, including Detroit Edison, provided corporate support services inclusive of various financial, auditing, tax, legal, treasury and cash management, human resources, information technology, and regulatory services, which were billed to DTE Energy corporate. Subsequent to March 31, 2007, a newly formed shared service company began to accumulate the aforementioned corporate support services type expenses, which previously had been recorded on the various operating units of DTE Energy Company, including Detroit Edison. These administrative and general expenses incurred by the shared services company were then charged to various subsidiaries of DTE Energy, including Detroit Edison.
The following is a summary of transactions with affiliated companies:
             
(in Millions) 2008  2007  2006 
Revenues
            
Energy sales $  $  $46 
Other services  6   5   5 
Shared capital assets  23   21   13 
Costs
            
Fuel and power purchases  5   3   35 
Other services and interest  7   6   3 
Corporate expenses (net)  388   331   (86)

60


                        
(in Millions) 2008 2007 2006  2009 2008 2007 
Revenues
 
Energy sales $1 $ $ 
Other services 4 6 5 
Shared capital assets 28 23 21 
Costs
 
Fuel and power purchases 3 5 3 
Other services and interest 3 7 6 
Corporate expenses (net) 313 388 331 
Other
  
Dividends declared 228 305 305  305 228 305 
Dividends paid 305 305 305  305 305 305 
Capital contribution 175 175 150  250 175 175 
                
 December 31,  December 31, 
(in Millions) 2008 2007  2009 2008 
Assets
  
Accounts receivable $5 $3  $3 $5 
Notes receivable 41   82 41 
Liabilities & Equity
  
Accounts payable 103 138  74 103 
Short-term borrowings  277 
Other liabilities  
Accrued pension liability 978 374  987 978 
Accrued postretirement liability 1,075 816  1,058 1,075 
Dividends payable  76 
Our accounts receivable from affiliated companies and accounts payable to affiliated companies are payable upon demand and are generally settled in cash within a monthly business cycle.
NOTE 1720 — SUPPLEMENTARY QUARTERLY FINANCIAL INFORMATION (UNAUDITED)
                                        
 First Second Third Fourth   First Second Third Fourth   
(in Millions) Quarter Quarter Quarter Quarter(1) Year Quarter Quarter Quarter(1) Quarter Year 
2009
 
Operating Revenues $1,118 $1,108 $1,289 $1,199 $4,714 
Operating Income 214 189 318 178 899 
Net Income 78 79 149 70 376 
 
2008
  
Operating Revenues $1,153 $1,173 $1,440 $1,108 $4,874  1,153 1,173 1,440 1,108 4,874 
Operating Income 139 151 316 194 800  139 151 316 194 800 
Net Income 41 51 159 80 331  41 51 159 80 331 
 
2007 
Operating Revenues 1,094 1,210 1,403 1,193 4,900 
Operating Income 131 162 227 223 743 
Net Income 40 60 107 110 317 
 
(1) InThe 2009 Third Quarter results were adjusted for the fourth quartereffect of 2007,the January 2010 Detroit Edison recordedMPSC rate order that required the refund of a portion of the self implemented rate increase effective on July 26, 2009. The adjustments that increased operating income by $27resulted in a reduction of Operating Revenues of $11 million, ($18Operating Income of $11 million after-tax) to correct prior amounts. These adjustments were primarily to record property, plant and equipment and deferred CTA costs for expenditures that had been expensed in earlier quartersNet Income of 2007, including $14 million ($9 million after-tax) expensed in the second quarter of 2007.$7 million.

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Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
Item 9.Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
None.
Item 9A. Controls and Procedures
Item 9A.Controls and Procedures
See Item 8. Financial Statements and Supplementary Data for management’s evaluation of disclosure controls and procedures, its report on internal control over financial reporting, and its conclusion on changes in internal control over financial reporting.

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Item 9B. Other Information
Item 9B.Other Information
None.
Part III
Item 10. Directors, Executive Officers and Corporate Governance
Item 10.Directors, Executive Officers and Corporate Governance
Item 11. Executive Compensation
Item 11.Executive Compensation
Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Item 12.Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Item 13. Certain Relationships and Related Transactions, and Director Independence
Item 13.Certain Relationships and Related Transactions, and Director Independence
All omitted per General Instruction I (2) (c) of Form 10-K for wholly owned subsidiaries (reduced disclosure format).
Item 14. Principal Accountant Fees and Services
Item 14.Principal Accountant Fees and Services
For the yearsyear ended December 31, 2009 professional services were performed by PricewaterhouseCoopers LLP (PwC). For the year ended December 31, 2008, and 2007, professional services were performed by Deloitte & Touche LLP, the member firms of Deloitte Touche Tohmatsu, and their respective affiliates (collectively, “Deloitte”). The following table presents fees for professional services rendered by PwC and Deloitte for the audit of Detroit Edison’s annual financial statements for the years ended December 31, 20082009 and December 31, 2007,2008, respectively, and fees billed for other services rendered by PwC and Deloitte during those periods.
                
 2008 2007  2009 2008 
Audit fees (1) $1,206,038 $1,275,216  $1,231,865 $1,466,413 
Audit-related fees (2) 7,000 6,179  37,400 45,500 
          
Total $1,213,038 $1,281,395  $1,269,265 $1,511,913 
          
 
(1) Represents the aggregrateaggregate fees for the audits of Detroit Edison’s annual financial statements and for the reviews of the financial statements included in Detroit Edison’s Quarterly Reports on Form 10-Q. .
 
(2) Represents the aggregrateaggregate fees billed for audit-related services.
The above listed fees were pre-approved by the DTE Energy audit committee. Prior to engagement, the DTE Energy audit committee pre-approves these services by category of service. The DTE Energy audit committee may delegate to the chair of the audit committee, or to one or more other designated members of the audit committee, the authority to grant pre-approvals of all permitted services or classes of these permitted services to be provided by the independent auditor up to but not exceeding a pre-defined limit. The decision of the designated member to pre-approve a permitted service will be reported to the DTE Energy audit committee at the next scheduled meeting.

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Part IV
Item 15. Exhibits and Financial Statement Schedules
Item 15.Exhibits and Financial Statement Schedules
(a) The following documents are filed as part of this Annual Report on Form 10-K.
(1) 
(1)Consolidated financial statements. See “Item 8 — Financial Statements and Supplementary Data.”
(2)Financial statement schedule. See “Item 8 — Financial Statements and Supplementary Data.”
(3)Exhibits.
(2) Financial statement schedule. See “Item 8 — Financial Statements and Supplementary Data.”
(3) Exhibits.
(i) Exhibits filed herewith.
(i)Exhibits filed herewith.
   
4-2614-267 Supplemental Indenture, dated as of DecemberNovember 1, 20082009 to the Mortgage and Deed of Trust dated as of October 1, 1924 between The Detroit Edison Company and The Bank of New York Mellon Trust Company N.A., as successor trustee providing for General and Refunding Mortgage Bonds, 2008(2009 Series LT.CT).
   
4-268 
4-262Twenty-EighthThirtieth Supplemental Indenture, dated as of DecemberNovember 1, 20082009 to the Collateral Trust Indenture, dated as of June 30, 1993 between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A, providing for 2008N.A., as successor trustee (2009 Series LT 6.75%CT Variable Rate Senior Notes due 2038.2024).
   
12-3212-36 Computation of Ratio of Earnings to Fixed Charges.
   
23-22 Consent of PricewaterhouseCoopers LLP.
   
23-2123-23 Consent of Deloitte & Touche LLP.
   
31-4531-53 Chief Executive Officer Section 302 Form 10-K Certification of Periodic Report.
   
31-4631-54 Chief Financial Officer Section 302 Form 10-K Certification of Periodic Report.
(ii) Exhibits incorporated herein by reference.
(ii)Exhibits incorporated herein by reference.
   
3(a)3(a) Restated Articles of Incorporation of The Detroit Edison Company, as filed December 10, 1991. (Exhibit 3-13 to Form 10-Q for the quarter ended June 30, 1999).
   
3(b)3(b) Bylaws of The Detroit Edison Company, as amended through September 22, 1999. (Exhibit 3-14 to Form 10-Q for the quarter ended September 30, 1999).
   
4(a)4(a) Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit B-1 to Registration Statement on Form A-2 (File No. 2-1630)) and indentures supplemental thereto, dated as of dates indicated below, and filed as exhibits to the filings set forth below:

Supplemental Indenture, dated as of December 1, 1940, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit B-14 to Registration Statement on Form A-2 (File No. 2-4609)). (amendment)

Supplemental Indenture, dated as of September 1, 1947, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit B-20 to Registration Statement on Form S-1 (File No. 2-7136)). (amendment)

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  Supplemental Indenture, dated as of March 1, 1950, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust

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Company, N.A., as successor trustee (Exhibit B-22 to Registration Statement on Form S-1 (File No. 2-8290)). (amendment)

Supplemental Indenture, dated as of November 15, 1951, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit B-23 to Registration Statement on Form S-1 (File No. 2-9226)). (amendment)

Supplemental Indenture, dated as of August 15, 1957, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 3-B-30 to Form 8-K dated September 11, 1957). (amendment)

Supplemental Indenture, dated as of December 1, 1966, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 2-B-32 to Registration Statement on Form S-9 (File No. 2-25664)). (amendment)

Supplemental Indenture, dated as of February 15, 1990, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-212 to Form 10-K for the year ended December 31, 2000). (1990 Series B, C, E and F) Supplemental Indenture, dated as of May 1, 1991, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-178 to Form 10-K for the year ended December 31, 1996). (1991 Series BP and CP)

Supplemental Indenture, dated as of May 15, 1991, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-179 to Form 10-K for the year ended December 31, 1996). (1991 Series DP)

Supplemental Indenture, dated as of February 29, 1992, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-187 to Form 10-Q for the quarter ended March 31, 1998). (1992 Series AP)

Supplemental Indenture, dated as of April 26, 1993, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-215 to Form 10-K for the year ended December 31, 2000). (amendment)

Supplemental Indenture, dated as of June 30, 1993, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-216 to Form 10-K for the year ended December 31, 2000). (1993 Series AP)

Supplemental Indenture, dated as of August 1, 1999, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-204 to Form 10-Q for the quarter ended September 30, 1999). (1999 Series AP, BP and CP)

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  Supplemental Indenture, dated as of August 1, 2000, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-210 to Form 10-Q for the quarter ended September 30, 2000). (2000 Series BP)

Supplemental Indenture, dated as of March 15, 2001, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-222 to Form 10-Q for the quarter ended March 31, 2001). (2001 Series AP)

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Supplemental Indenture, dated as of May 1, 2001, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between Detroit Edison and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-226 to Form 10-Q for the quarter ended June 30, 2001). (2001 Series BP)

Supplemental Indenture, dated as of August 15, 2001, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-227 to Form 10-Q for the quarter ended September 30, 2001). (2001 Series CP)

Supplemental Indenture, dated as of September 15, 2001, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-228 to Form 10-Q for the quarter ended September 30, 2001). (2001 Series D and E)

Supplemental Indenture, dated as of September 17, 2002, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4.1 to Registration Statement on Form S-3 (File No. 333-100000)). (amendment and successor trustee)

Supplemental Indenture, dated as of October 15, 2002, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-230 to Form 10-Q for the quarter ended September 30, 2002). (2002 Series A and B)

Supplemental Indenture, dated as of December 1, 2002, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-232 to Form 10-K for the year ended December 31, 2002). (2002 Series C and D)

Supplemental Indenture, dated as of August 1, 2003, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-235 to Form 10-Q for the quarter ended September 30, 2003). (2003 Series A)

Supplemental Indenture, dated as of March 15, 2004, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-238 to Form 10-Q for the quarter ended March 31, 2004). (2004 Series A and B)

Supplemental Indenture, dated as of July 1, 2004, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-240 to Form 10-Q for the quarter ended June 30, 2004). (2004 Series D)

Supplemental Indenture, dated as of April 1, 2005, to the Mortgage and Deed of Trust, dated as

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of October 1, 1924, between Detroit Edison and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4.3 to Registration Statement on Form S-4 (File No. 333-123926)). (2005 Series AR and BR)

Supplemental Indenture, dated as of September 15, 2005, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4.2 to Form 8-K dated September 29, 2005). (2005 Series C)

Supplemental Indenture, dated as of September 30, 2005, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between Detroit Edison and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-248 to Form 10-Q for the quarter ended September 30, 2005). (2005 Series E)

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Supplemental Indenture, dated as of May 15, 2006, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-250 to Form 10-Q for the quarter ended June 30, 2006). (2006 Series A)

Supplemental Indenture, dated as of December 1, 2007, to the Mortgage and Deed of Trust, dated as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4.2 to Form 8-K dated December 18, 2007). (2007 Series A)

Supplemental Indenture, dated as of April 1, 2008 to Mortgage and Deed of Trust as of October 1, 1924, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-251 to Form 10-Q for the quarter ended March 31, 2008. (2008 Series DT)

Supplemental Indenture, dated as of May 1, 2008 to Mortgage and Deed of Trust dated as of October 1, 1924 between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-253 to Form 10-Q for the quarter ended June 30, 2008). (2008 Series ET)

Supplemental Indenture, dated as of June 1, 2008 to Mortgage and Deed of Trust dated as of October 1, 1924 between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-255 to Form 10-Q for the quarter ended June 30, 2008). (2008 Series G)

Supplemental Indenture, dated as of July 1, 2008 to Mortgage and Deed of Trust dated as of October 1, 1924 between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-257 to Form 10-Q for the quarter ended June 30, 2008). (2008 Series KT)

Supplemental Indenture, dated as of October 1, 2008 to Mortgage and Deed of Trust dated as of October 1, 1924 between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-259 to Form 10-Q for the quarter ended September 30, 2008). (2008 Series J)
   
  Supplemental Indenture, dated as of December 1, 2008 to Mortgage and Deed of Trust dated as of October 1, 1924 between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee, providing for General and Refunding Mortgage Bonds. (Exhibit 4-261 to Form 10-K for the year ended December 31, 2008). (2008 Series LT)
 4(b)
Supplemental Indenture, dated as of March 15, 2009 to Mortgage and Deed of Trust dated as of October 1, 1924 between The Detroit Edison Company and The Bank of New York Mellon Trust Company N.A., as successor trustee (Exhibit 4-263 to Form 10-Q for the quarter ended March 31, 2009). (2009 Series BT)
4(b) Collateral Trust Indenture, dated as of June 30, 1993, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-152 to Registration Statement on Form S-3 (File No. 33-50325)).
   
 4(c) Ninth Supplemental Indenture, dated as of October 10, 2001, to the Collateral Trust Indenture, dated as of June 30, 1993, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-229 to Form 10-Q for the quarter ended September 30, 2001). (6.125% Senior Notes due 2010)
   
 4(d) Tenth Supplemental Indenture, dated as of October 23, 2002, to the Collateral Trust Indenture, dated as of June 30, 1993, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-231 to Form 10-Q for the quarter ended September 30, 2002). (5.20% Senior Notes due 2012 and 6.35% Senior Notes due 2032)

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 4(e) Eleventh Supplemental Indenture, dated as of December 1, 2002, to the Collateral Trust Indenture, dated as of June 30, 1993, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-233 to Form 10-Q for the quarter ended March 31, 2003). (5.45% Senior Notes due 2032 and 5.25% Senior Notes due 2032)
   
 4(f) Twelfth Supplemental Indenture, dated as of August 1, 2003, to the Collateral Trust Indenture, dated as of June 30, 1993, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-236 to Form 10-Q for the quarter ended September 30, 2003). (5 1/2% Senior Notes due 2030)

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 4(g) Thirteenth Supplemental Indenture, dated as of April 1, 2004, to the Collateral Trust Indenture, dated as of June 30, 1993, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-237 to Form 10-Q for the quarter ended March 31, 2004). (4.875% Senior Notes Due 2029 and 4.65% Senior Notes due 2028)
   
 4(h) Fourteenth Supplemental Indenture, dated as of July 15, 2004, to the Collateral Trust Indenture, dated as of June 30, 1993, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-239 to Form 10-Q for the quarter ended June 30, 2004). (2004 Series D 5.40% Senior Notes due 2014)
   
 4(i) Sixteenth Supplemental Indenture, dated as of April 1, 2005, to the Collateral Trust Indenture, dated as of June 30, 1993, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4.1 to Registration Statement on Form S-4 (File No. 333-123926)). (2005 Series AR 4.80% Senior Notes due 2015 and 2005 Series BR 5.45% Senior Notes due 2035)
   
 4(j) Eighteenth Supplemental Indenture, dated as of September 15, 2005, to the Collateral Trust Indenture, dated as of June 30, 1993, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4.1 to Form 8-K dated September 29, 2005). (2005 Series C 5.19% Senior Notes due October 1, 2023)
   
 4(k) Nineteenth Supplemental Indenture, dated as of September 30, 2005, to the Collateral Trust Indenture, dated as of June 30, 1993, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-247 to Form 10-Q for the quarter ended September 30, 2005). (2005 Series E 5.70% Senior Notes due 2037)
   
 4(l) Twentieth Supplemental Indenture, dated as of May 15, 2006, to the Collateral Trust Indenture dated as of June 30, 1993, between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-249 to Form 10-Q for the quarter ended June 30, 2006). (2006 Series A Senior Notes due 2036)
   
 4(m) Twenty-Second Supplemental Indenture, dated as of December 1, 2007, to the Collateral Trust Indenture, dated as of June 30, 1993, between The Detroit Edison Company and The Bank of New York Trust Company, N.A., as successor trustee (Exhibit 4.1 to Form 8-K dated December 18, 2007). (2007 Series A Senior Notes due 2038)
   
 4(n)Twenty-Third Supplemental Indenture, dated as of April 1, 2008, to the Collateral Trust Indenture, dated as of June 30, 1993, between The Detroit Edison Company and The Bank of New York Trust Company, N.A., as successor trustee (Exhibit 4-252 to Form 10-Q for the quarter ended March 31, 2008). (2008 Series DT Variable Rate Senior Notes due 2036)

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4(o) Twenty-Fourth Supplemental Indenture, dated as of May 1, 2008, to the Collateral Trust Indenture, dated as of June 30, 1993, between The Detroit Edison Company and The Bank of New York Trust Company, N.A., as successor trustee (Exhibit 4-254 to Form 10-Q for the quarter ended June 30, 2008). (2008 Series ET Variable Rate Senior Notes due 2029)
   
 Amendment dated June 1, 2009 to the Twenty-fourth Supplemental Indenture, dated as of May 1, 2008 to the Collateral Trust Indenture, dated as of June 30, 1993 between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A. as successor trustee (2008 Series ET Variable Rate Senior Notes due 2029) (Exhibit 4-265 to Form 10-Q for the quarter ended June 30, 2009)
   
 4(p) Twenty-Fifth Supplemental Indenture, dated as of June 1, 2008, to the Collateral Trust Indenture, dated as of June 30, 1993, between The Detroit Edison Company and The Bank of New York Trust Company, N.A., as successor trustee (Exhibit 4-256 to Form 10-Q for the quarter ended June 30, 2008). (2008 Series G 5.60% Senior Notes due 2018)
   
 4(q) Twenty-Sixth Supplemental Indenture, dated as of July 1, 2008, to the Collateral Trust Indenture, dated as of June 30, 1993, between The Detroit Edison Company and The Bank of New York Trust Company, N.A., as successor trustee (Exhibit 4-258 to Form 10-Q for the quarter ended June 30, 2008). (2008 Series KT Variable Rate Senior Notes due 2020)
   
 Amendment dated June 1, 2009 to the Twenty-sixth Supplemental Indenture, dated as of July 1, 2008 to the Collateral Trust Indenture, dated as of June 30, 1993 between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (2008 Series KT Variable Rate Senior Notes due 2020) (Exhibit 4-266 to Form 10-Q for the quarter ended June 30, 2009)

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 4(r) Twenty-Seventh Supplemental Indenture, dated as of October 1, 2008, to the Collateral Trust Indenture, dated as of June 30, 1993, between The Detroit Edison Company and The Bank of New York Trust Company, N.A., as successor trustee (Exhibit 4-260 to Form 10-Q for the quarter ended September 30, 2008). (2008 Series J 6.40% Senior Notes due 2013)
   
 Twenty-Eighth Supplemental Indenture, dated as of December 1, 2008 to the Collateral Trust Indenture, dated as of June 30, 1993 between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A. (Exhibit 4-262 to Detroit Edison’s Form 10-K for the year ended December 31, 2008). (2008 Series LT 6.75% Senior Notes due 2038)
   
  Twenty-Ninth Supplemental Indenture, dated as of March 15, 2009, to the Collateral Trust Indenture, dated as of June 30, 1993 between The Detroit Edison Company and The Bank of New York Mellon Trust Company, N.A., as successor trustee (Exhibit 4-264 to Detroit Edison’s Form 10-Q for the quarter ended March 31, 2009). (2009 Series BT 6.00% Senior Notes due 2036)
 4(s)
4(c) Trust Agreement of Detroit Edison Trust I. (Exhibit 4.9 to Registration Statement on Form S-3 (File No. 333-100000)).
   
4(t)4(d) Trust Agreement of Detroit Edison Trust II. (Exhibit 4.10 to Registration Statement on Form S-3 (File No. 333-100000)).
   
10(a)10(a) Securitization Property Sales Agreement dated as of March 9, 2001, between The Detroit Edison Securitization Funding LLC and The Detroit Edison Company. (Exhibit 10-42 to Form 10-Q for the quarter ended March 31, 2001).
   
10(b) Certain arrangements pertaining to the employment of Anthony F. Earley, Jr. with The Detroit Edison Company, dated April 25, 1994. (Exhibit 10-53 to Form 10-Q for the quarter ended March 31, 1994).
   
10(c)Certain arrangements pertaining to the employment of Gerard M. Anderson with The Detroit Edison Company, dated October 6, 1993. (Exhibit 10-48 to Form 10-K for year ended December 31, 1993).
   
1010(d)(b)Certain arrangements pertaining to the employment of David E. Meador with The Detroit Edison Company, dated January 14, 1997. (Exhibit 10-5 to Form 10-K for the year ended December 31, 1996).
10(e)Amended and Restated Post-Employment Income Agreement, dated March 23, 1998, between The Detroit Edison Company and Anthony F. Earley, Jr. (Exhibit 10-21 to Form 10-Q for the quarter ended March 31, 1998).
10(f)The Detroit Edison Company Supplemental Long-Term Disability Plan, dated January 27, 1997. (Exhibit 10-4 to Form 10-K for the year ended December 31, 1996).
10(g) Form of The Detroit Edison Company’s Five-Year Credit Agreement, dated as of October 17, 2005, by and among The Detroit Edison Company, the lenders party thereto, Barclays Bank PLC, as Administrative Agent, and Citibank, N.A. and JPMorgan Chase Bank, N.A., as Co-Syndication Agents (Exhibit 10.1 to Form 8-K dated October 17, 2005).
   
10(c)10(h) Form of Amendment No.1 to The Detroit Edison Company’s Five-YearTwo-Year Credit Agreement, dated as of January 10, 2007,April 29, 2009, by and among The Detroit Edison, Company, the lenders party thereto, Barclays, Bank PLC, as Administrative Agent, and Citibank, N.A.JPMorgan and JPMorgan Chase Bank, N.A.,RBS, as Co-Syndication AgentsAgents. (Exhibit 10.1 to Form 8-K dated January 10, 2007)filed May 5, 2009).
   
10(d)Form of Second Amended and Restated Five-Year Credit Agreement, dated as of October 17, 2005, by and among The Detroit Edison Company, the lenders party thereto, Barclays Bank PLC, as Administrative Agent, and Citibank, N.A. and JPMorgan Chase Bank, N.A., as Co-Syndication Agents (Exhibit 10.2 to Form 8-K dated October 17, 2005).
10(e)Form of Amendment No. 1. to Second Amended and Restated Five-Year Credit Agreement dated as of January 10, 2007, by and among The Detroit Edison Company, the lenders party thereto, Barclays Bank PLC, as Administrative Agent, and Citibank, N.A. and JPMorgan Chase Bank, N.A., as Co-Syndication Agents (Exhibit 10.2 to Form 8-K dated January 10, 2007).
10(f)Certain arrangements pertaining to the employment of Anthony F. Earley, Jr. with The Detroit Edison Company, dated April 25, 1994. (Exhibit 10-53 to Form 10-Q for the quarter ended March 31, 1994).
10(g)Certain arrangements pertaining to the employment of Gerard M. Anderson with The Detroit Edison Company, dated October 6, 1993. (Exhibit 10-48 to Form 10-K for year ended December 31, 1993).

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10(h)Certain arrangements pertaining to the employment of David E. Meador with The Detroit Edison Company, dated January 14, 1997. (Exhibit 10-5 to Form 10-K for the year ended December 31, 1996).
10(i)Amended and Restated Post-Employment Income Agreement, dated March 23, 1998, between The Detroit Edison Company and Anthony F. Earley, Jr. (Exhibit 10-21 to Form 10-Q for the quarter ended March 31, 1998).
10(j)The Detroit Edison Company Supplemental Long-Term Disability Plan, dated January 27, 1997. (Exhibit 10-4 to Form 10-K for the year ended December 31, 1996).
10(k)Executive Vehicle Plan of The Detroit Edison Company, dated as of September 1, 1999. (Exhibit 10-41 to Form 10-Q for the quarter ended March 31, 2001).
99(a)99(a) Belle River Participation Agreement, dated as of December 1, 1982, between The Detroit Edison Company and Michigan Public Power Agency. (Exhibit 28-5 to Registration Statement No. 2-81501).

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99(b)99(b) Belle River Transmission Ownership and Operating Agreement, dated as of December 1, 1982, between The Detroit Edison Company and Michigan Public Power Agency. (Exhibit 28-6 to Registration Statement No. 2-81501).
(iii) Exhibits furnished herewith.
(iii) Exhibits furnished herewith.
   
32-4532-53 Chief Executive Officer Section 906 Form 10-K Certification of Periodic Report.
   
32-4632-54 Chief Financial Officer Section 906 Form 10-K Certification of Periodic Report.

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The Detroit Edison Company
Schedule II — Valuation and Qualifying Accounts
                        
 Year Ended December 31  Year Ended December 31 
(in Millions) 2008 2007 2006  2009 2008 2007 
Allowance for Doubtful Accounts (shown as deduction from accounts receivable in the consolidated statements of financial position)
 
Allowance for Doubtful Accounts (shown as deduction from Accounts Receivable in the Consolidated Statements of Financial Position)
 
Balance at Beginning of Period $93 $72 $54  $121 $93 $72 
Additions:  
Charged to costs and expenses 81 63 53  62 81 63 
Charged to other accounts (1) 5 4 3  7 5 4 
Deductions (2)  (58)  (46)  (38)  (72)  (58)  (46)
              
Balance at End of Period $121 $93 $72 
Balance At End of Period $118 $121 $93 
              
 
(1) Collection of accounts previously written off.
 
(2) Non-collectible accounts written off.

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Signatures
Pursuant to the requirements of Section 13 or 15 (d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
     
 THE DETROIT EDISON COMPANY

(Registrant)
 
 (Registrant)
Date: February 27, 200923, 2010 By /s/ PETER B. OLEKSIAK
ANTHONY F. EARLEY, JR.   
   Anthony F. Earley, Jr. Peter B. Oleksiak
   Chairman of the Board and
Chief Executive Officer 
Vice President and Controller, and
 Chief Accounting Officer
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the date indicated.
       
By /s/ ANTHONY F. EARLEY, JR. By /s/ PETER B. OLEKSIAK
       
  Anthony F. Earley, Jr.
Chairman of the Board and
Chief Executive Officer
   Peter B. Oleksiak
Chairman of the Board and
Vice President, and Controller and
Chief Executive Officer Investor Relations, and
Chief Accounting Officer
       
By /s/ SANDRA KAY ENNIS By /s/ DAVID E. MEADOR
       
  Sandra Kay EnnisDavid E. Meador

Director and Corporate Secretary
   David E. Meador
Director, Executive Vice President
and Chief Financial Officer
       
By /s/ BRUCE D. PETERSON    
       
  Bruce D. Peterson

Director
    
Date: February 27, 200923, 2010

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