- ------------------------------------------------------------------------------- - ------------------------------------------------------------------------------- FORM 10-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 (MARK ONE) [X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 1996 [_] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 COMMISSION REGISTRANT; STATE OF INCORPORATION; IRS EMPLOYER FILE NUMBER ADDRESS; AND TELEPHONE NUMBER IDENTIFICATION NO. ----------- ----------------------------------- ------------------ 1-11375 UNICOM CORPORATION 36-3961038 (an Illinois corporation) 37th Floor, 10 South Dearborn Street Post Office Box A-3005 Chicago, Illinois 60690-3005 312/394-7399 1-1839 COMMONWEALTH EDISON COMPANY 36-0938600 (an Illinois corporation) 37th Floor, 10 South Dearborn Street Post Office Box 767 Chicago, Illinois 60690-0767 312/394-4321 SECURITIES REGISTERED PURSUANT TO SECTION 12(B) OF THE ACT: TITLE OF EACH CLASS NAME OF EACH EXCHANGE - --------------------------- ON WHICH REGISTERED ------------------------- UNICOM CORPORATION Common Stock, without par value New York, Chicago and Pacific COMMONWEALTH EDISON COMPANY (Listed on inside cover) INDICATE BY CHECK MARK WHETHER THE REGISTRANTS (1) HAVE 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, AND (2) HAVE BEEN SUBJECT TO SUCH FILING REQUIREMENTS FOR THE PAST 90 DAYS. YES X . No . 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 registrants' 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. [X] - ------------------------------------------------------------------------------- - ------------------------------------------------------------------------------- COMMONWEALTH EDISON COMPANY Securities Registered Pursuant to Section 12(b) of the Act: NAME OF EACH EXCHANGE TITLE OF EACH CLASS ON WHICH REGISTERED - --------------------------------------- --------------------------- First Mortgage Bonds: 7 5/8% Series 25, due June 1, 2003 8% Series 26, due October 15, New York 2003 8 1/8% Series 35, due January 15, 2007 Sinking Fund Debentures: 3%, due April 1, 1999 2 7/8%, due April 1, 2001 New York 7 5/8% Series 1, due February 15, 2003 2 3/4%, due April 1, 1999 New York and Chicago Cumulative Preference Stock, without par value: $1.90; $2.00; $7.24; $8.40; $8.38; and $8.40 Series B New York, Chicago and Pacific $2.425 New York 8.48% ComEd-Obligated Mandatorily Redeemable Preferred Securities of Subsidiary Trust New York THE ESTIMATED AGGREGATE MARKET VALUE OF UNICOM CORPORATION'S 216,108,691 shares of outstanding Common Stock, without par value, was approximately $4,800,000,000 as of February 28, 1997. In excess of 99.9% of Unicom Corporation's voting stock was owned by non-affiliates as of that date. THE ESTIMATED AGGREGATE MARKET VALUE OF COMMONWEALTH EDISON COMPANY'S outstanding $1.425 Convertible Preferred Stock, Cumulative Preference Stock and Company-Obligated Mandatorily Redeemable Preferred Securities of Subsidiary Trusts was approximately $970,000,000 as of February 28, 1997. Unicom Corporation held in excess of 99.99% of the 214,218,990 shares of outstanding Common Stock, $12.50 par value, of Commonwealth Edison Company as of that date. DOCUMENTS INCORPORATED BY REFERENCE: Portions of Unicom Corporation's Current Report on Form 8-K dated January 31, 1997 are incorporated by reference into Parts I, II and IV of the Unicom Corporation Annual Report on Form 10-K and portions of its definitive Proxy Statement to be filed prior to April 30, 1997 relating to its Annual Meeting of shareholders to be held on May 29, 1997 are incorporated by reference into Part III of the Unicom Corporation Annual Report on Form 10-K. Portions of Commonwealth Edison Company's Current Report on Form 8-K dated January 31, 1997 are incorporated by reference into Parts I, II and IV of the Commonwealth Edison Company Annual Report on Form 10-K and portions of its definitive Information Statement to be filed prior to April 30, 1997 relating to its Annual Meeting of shareholders to be held on May 29, 1997 are incorporated by reference into Part III of the Commonwealth Edison Company Annual Report on Form 10-K. UNICOM CORPORATION AND COMMONWEALTH EDISON COMPANY FORM 10-K FOR THE FISCAL YEAR ENDED DECEMBER 31, 1996 This document contains the Annual Reports on Form 10-K for the fiscal year ended December 31, 1996 for each of Unicom Corporation and Commonwealth Edison Company. Information contained herein relating to an individual registrant is filed by such registrant on its own behalf. Accordingly, except for its subsidiaries, Commonwealth Edison Company makes no representation as to information relating to Unicom Corporation or to any other companies affiliated with Unicom Corporation. TABLE OF CONTENTS PAGE ---- Definitions............................................................... 1 ANNUAL REPORT ON FORM 10-K FOR UNICOM CORPORATION: Part I Item 1. Business........................................................ 2 General............................................................... 2 Changes in the Electric Utility Industry.............................. 3 Net Electric Generating Capability.................................... 6 Construction Program.................................................. 6 Rate Matters.......................................................... 9 Fuel Supply........................................................... 10 Regulation............................................................ 11 Employees............................................................. 18 Interconnections...................................................... 18 Franchises............................................................ 18 Executive Officers of the Registrant.................................. 19 Operating Statistics.................................................. 20 Forward Looking Information........................................... 21 Item 2. Properties...................................................... 21 Item 3. Legal Proceedings............................................... 22 Item 4. Submission of Matters to a Vote of Security Holders............. 23 Part II Item 5. Market for Registrant's Common Equity and Related Stockholder Matters................................................................ 23 Item 6. Selected Financial Data......................................... 24 Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations...................................................... 24 Item 8. Financial Statements and Supplementary Data..................... 24 Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure............................................ 24 Part III Item 10. Directors and Executive Officers of the Registrant............. 24 Item 11. Executive Compensation......................................... 25 Item 12. Security Ownership of Certain Beneficial Owners and Manage- ment................................................................... 25 Item 13. Certain Relationships and Related Transactions................. 25 i UNICOM CORPORATION AND COMMONWEALTH EDISON COMPANY FORM 10-K FOR THE FISCAL YEAR ENDED DECEMBER 31, 1996 TABLE OF CONTENTS (CONCLUDED) PAGE ---- ANNUAL REPORT ON FORM 10-K FOR COMMONWEALTH EDISON COMPANY: Part I Item 1. Business........................................................ 26 Item 2. Properties...................................................... 27 Item 3. Legal Proceedings............................................... 27 Item 4. Submission of Matters to a Vote of Security Holders............. 27 Part II Item 5. Market for Registrant's Common Equity and Related Stockholder Matters................................................................ 28 Item 6. Selected Financial Data......................................... 28 Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations........................................... 28 Item 8. Financial Statements and Supplementary Data..................... 28 Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure............................................ 28 Part III Item 10. Directors and Executive Officers of the Registrant............. 28 Item 11. Executive Compensation......................................... 28 Item 12. Security Ownership of Certain Beneficial Owners and Management. 28 Item 13. Certain Relationships and Related Transactions................. 28 ANNUAL REPORTS ON FORM 10-K FOR UNICOM CORPORATION AND COMMONWEALTH EDISON COMPANY: Part IV Item 14. Exhibits, Financial Statement Schedules and Reports on Form 8-K............................................................... 29 Report of Independent Public Accountants on Supplemental Schedule to Unicom Corporation..................................................... 37 Report of Independent Public Accountants on Supplemental Schedule to Commonwealth Edison Company............................................ 38 Schedule II--Valuation and Qualifying Accounts.......................... 39 Signature Page to Unicom Corporation Annual Report on Form 10-K......... 40 Signature Page to Commonwealth Edison Company Annual Report on Form 10-K.............................................................. 41 ii DEFINITIONS The following terms are used in this document with the following meanings: TERM MEANING -------------------- --------------------------------------------------------- BWR Boiling water reactor CERCLA Comprehensive Environmental Response, Compensation and Liability Act of 1980, as amended CFC Chlorofluorocarbon Clean Air Amendments Clean Air Act Amendments of 1990 ComEd Commonwealth Edison Company Congress U.S. Congress Cotter Cotter Corporation, which is a wholly-owned subsidiary of ComEd. DOE U.S. Department of Energy EMFs Electric and magnetic fields FERC Federal Energy Regulatory Commission FERC Order FERC Open Access Order No. 888 issued in April 1996 IBEW International Brotherhood of Electrical Workers (AFL-CIO) ICC Illinois Commerce Commission IDNS Illinois Department of Nuclear Safety Illinois EPA Illinois Environmental Protection Agency Indiana Company Commonwealth Edison Company of Indiana, Inc., which is a wholly-owned subsidiary of ComEd. IPCB Illinois Pollution Control Board ISO Independent System Operator January 31, 1997 Unicom's Current Report on Form 8-K including auditor's Form 8-K Reports opinion dated January 31, 1997 and ComEd's Current Report on Form 8-K including auditor's opinion dated January 31, 1997 MAIN Mid-America Interconnected Network MGP Manufactured gas plant NLRB National Labor Relations Board NPDES National Pollutant Discharge Elimination System NPL National Priorities List NRC Nuclear Regulatory Commission PRPs Potentially responsible parties under CERCLA PTAB Property Tax Appeals Board Rate Order ICC rate order issued in January 1995, as subsequently modified Remand Order ICC rate order issued in January 1993, as subsequently modified SEC Securities and Exchange Commission Trust ComEd Financing I, which is a wholly-owned subsidiary trust of ComEd. Unicom Unicom Corporation Unicom Enterprises Unicom Enterprises Inc., which is a wholly-owned subsidiary of Unicom. Unicom Thermal Unicom Thermal Technologies Inc., which is a wholly-owned subsidiary of Unicom Enterprises. Units ComEd's nuclear generating units known as Byron Unit 2 and Braidwood Units 1 and 2 U.S. EPA U.S. Environmental Protection Agency 1 ANNUAL REPORT ON FORM 10-K FOR UNICOM CORPORATION PART I ITEM 1. BUSINESS. GENERAL Unicom was incorporated in January 1994 and became the parent holding company of ComEd and Unicom Enterprises in a corporate restructuring that became effective on September 1, 1994. ComEd, an electric utility, is the principal subsidiary of Unicom. Unicom Enterprises is an unregulated subsidiary of Unicom and is engaged, through subsidiaries, in energy service activities. Unicom also has one other subsidiary that was formed to engage in unregulated activities. Unicom's principal executive offices are located at 10 South Dearborn Street, Post Office Box A-3005, Chicago, Illinois 60690-3005, and its telephone number is 312/394-7399. ComEd continues to represent substantially all of the assets, revenues and net income of Unicom; and Unicom's resources and results of operations are largely dependent on, and reflect, those of ComEd. Consequently, the following discussion focuses on ComEd's utility operations although information is also provided about Unicom's unregulated operations. Utility Operations ComEd is engaged principally in the production, purchase, transmission, distribution and sale of electricity to a diverse base of residential, commercial, industrial and wholesale customers. ComEd was organized in the state of Illinois on October 17, 1913 as a result of the merger of Cosmopolitan Electric Company into the original corporation named Commonwealth Edison Company. The latter had been incorporated on September 17, 1907. ComEd's electric service territory has an area of approximately 11,300 square miles and an estimated population of approximately eight million as of December 31, 1996. It includes the city of Chicago, an area of about 225 square miles with an estimated population of approximately three million from which ComEd derived approximately one-third of its ultimate consumer revenues in 1996. ComEd had approximately 3.4 million electric customers at December 31, 1996. ComEd's principal executive offices are located at 10 South Dearborn Street, Post Office Box 767, Chicago, Illinois 60690-0767, and its telephone number is 312/394-4321. See "Fuel Supply," "Regulation" and "Item 3. Legal Proceedings" herein for information concerning administrative and legal proceedings and certain other matters involving ComEd, the Indiana Company and Cotter. The outcome of certain of the proceedings or matters described or referred to therein, if not favorable to ComEd and the Indiana Company, could have a material adverse effect on the future business and operating results of Unicom, ComEd and the Indiana Company. Unregulated Operations Unicom Enterprises is engaged, through its subsidiaries, in energy service activities which are not subject to utility regulation by state or federal agencies. Its principal subsidiary, Unicom Thermal, currently provides district cooling services to office and other buildings in the city of Chicago under a non-exclusive use agreement with Chicago expiring in 2014. District cooling involves, in essence, the production of chilled water at a central location(s) and its circulation to customers' buildings through a closed circuit of supply and return piping. Such water is circulated through customers' premises primarily for air conditioning. This process is used in lieu of self-generated cooling. As a result of the Clean Air Amendments, the manufacture of CFCs has been curtailed, commencing in January 1996, thereby creating an excellent marketing opportunity for non-CFC based systems, such as Unicom Thermal's district cooling. Unicom Thermal is involved in or considering district cooling projects in 2 other cities, including a project in Boston with Boston Edison Technologies Group, Inc., a project in Windsor, Ontario, Canada with Ontario Hydro and a project in Houston, Texas with Houston Light and Power Energy Services Company. CHANGES IN THE ELECTRIC UTILITY INDUSTRY Unicom and its predominant business, electric energy generation, transmission and distribution, are in a period of fundamental change in the manner in which customers obtain, and energy suppliers provide, energy services. These changes are attributable to changes in technology, the relaxation of regulatory barriers to utilities' respective service territories as well as to efforts to change the manner in which electric utilities are regulated. Federal law and regulations have been amended to provide for open transmission system access, and various states are considering, or have adopted, new regulatory structures to allow access by some or all customers to energy suppliers in addition to the local utility. ComEd and other energy suppliers, energy customers and other interested parties have been active participants in the discussions related to the economic and technical issues associated with reform. As a result of these efforts, legislation was introduced in Illinois during January 1997 which is intended to provide both electric service providers and their customers with an orderly transition to a less regulated market for electric service. Under the legislative proposal, utilities would be granted a period in which to offer direct access experiments that would allow them and customers to gain experience with the effects of such access, with a requirement to provide such access starting in 2000. Such a requirement would be phased-in to customers over several years, starting with larger load customers. The legislation would provide utilities with an opportunity to recover costs, which might not otherwise be recoverable, in charges for electric service in a less regulated market through, among other things, cost savings and a transition charge for customers who use alternate suppliers of electric power and energy. The legislation would provide for a leveling of certain regulatory oversight and tax provisions among electric service providers in Illinois and would also allow certain restructurings of utility operations in order to facilitate their response to a competitive environment. The legislation would also provide for annual base rate decreases of 1.5 percent, starting in 2000 and continuing through 2004. ComEd supports the proposed legislation and believes there is support among a number of constituencies for its provisions. Other legislative proposals have also been introduced for consideration, which contain different provisions with respect to timing and cost recovery. The Governor of Illinois has formed a three-person advisory committee to advise with respect to electric utility deregulation issues. No assurance can be given as to when any such legislation may be adopted or in what form it may be adopted. In response to changes in the industry, ComEd has implemented certain customer initiatives designed to improve and strengthen customer relationships and is undertaking an evaluation of its operations and assets, particularly generating assets, with a view toward positioning itself for market and industry changes. As discussed below, ComEd's actions to date have included a five-year base rate cap, efforts to control expenditure growth through personnel reductions, operational efficiencies and sales of generating plants. Although ComEd's operating results and financial condition have historically been affected by various rate proceedings, ComEd expects that these industry changes, and ComEd's activities anticipating or responding to them, will directly impact its operating results and financial condition over the next several years. Electric Utility Industry. The electric utility industry has historically consisted of vertically integrated companies which combine generation, transmission and distribution assets; serving customers within relatively defined service territories; and operating under extensive regulation with respect to rates, operations and other matters. Utilities operated under a regulatory compact with the state, with a statutory obligation to serve all of the electricity needs within their service territory in a 3 nondiscriminatory manner. Historically, investment and operating decisions have been made based upon the utilities' respective assessment of those current and projected needs of its customers. In view of this obligation, regulation has focused on investment and operating costs, and rates have been based on a recovery of some or all of such prudently incurred costs plus a return on invested capital. Such rate regulation, and the ability of utilities to recover investment and other costs through rates, has provided the basis for recording certain costs as regulatory assets. These assets represent costs which are allocated over future periods reflecting related regulatory treatment, rather than expensed in the current period. As noted previously, the United States electric utility industry is in a process of fundamental change as state legislators and regulators re-examine their approach to regulation and its objectives and consider a transition to a competitive or market-based system of pricing for electric energy. Although the process and approach have varied from state to state in terms of the elements and timing of implementation, it is evident that the question is no longer if, but rather how and when there will be a more competitive electricity market. The Federal Energy Policy Act of 1992, among other things, empowered FERC to introduce a greater level of competition into the wholesale marketplace for electric energy. In April 1996, the FERC Order was issued requiring utilities to file open access tariffs with regard to their transmission systems. These tariffs set forth the terms, including prices, under which other parties and the utility's wholesale marketing function may use the utility's transmission system. ComEd has filed an open access tariff with the FERC. The FERC Order requires the separation of the transmission operations and wholesale marketing functions so as to ensure that unaffiliated third parties have access to the same information as to system availability and other requirements. The FERC Order further requires utilities to operate an electronic bulletin board to make transmission price and access data available to all potential users. A key feature of the FERC Order is that it contemplates full recovery of a utility's costs "stranded" by competition. These costs are "stranded" or "strandable" to the extent market-based rates would be insufficient to allow for their full recovery. To recover stranded costs, the utility must show that it had a reasonable expectation that it would continue to serve the customer in question under its regulatory compact. An important element of reform proposals under consideration is the ability of other suppliers to provide energy in competition with a utility within its service territory. This element generally has included consideration of some future form of "retail wheeling," whereby a utility's transmission and distribution system is made available to other energy suppliers for delivery of their services to retail customers. In addition, some governmental entities, such as cities, may elect to "municipalize" a utility's distribution facilities through condemnation proceedings. Such municipalities would then be able to purchase electric power on a wholesale basis and resell it to customers over the newly acquired facilities. The FERC Order provides for the recovery of a utility's investment stranded by municipalization. While municipalization is possible under the present regulatory system, ComEd is not required to grant alternative electric suppliers access to its distribution system through any type of "retail wheeling." Presumably, under such a modified regulatory structure, customers will base energy purchase decisions on a combination of factors, including price, reliability and service. In addition to the potential effects on revenues and marketing and sales efforts, such changes can raise the question as to whether an affected utility's rates are based on cost-based regulation, allowing recovery of incurred costs, or are based on something else, i.e., the marketplace. Under generally accepted accounting principles, the latter determination would require the write off of regulatory assets and liabilities and would require an examination as to the recoverability in revenues of other incurred costs, with any portion determined to be unrecoverable being subject to write off. Various approaches have been proposed to deal with such strandable costs, from full recovery, as provided in the FERC Order, to no recovery, as proposed by at least some of the participants in virtually all legislative debates on regulatory reform proposals. For additional information, see "Regulatory Assets and Liabilities" in Note 1 of Notes to Financial Statements in the January 31, 1997 Form 8-K Reports. 4 Retail wheeling and municipalization are significant issues for electric utility companies, including ComEd, because of their potential to strand a utility's costs. Without the development of a more fully competitive marketplace, it is not possible to develop an estimate of strandable costs with any degree of accuracy. Any calculation of potentially strandable costs requires that a set of assumptions be made, including the timing of open access (customer choice), the extent of open access allowed, potential market prices over time, sales and load growth forecasts, operating performance over time, allowed rates over time, cost structure over time, mitigation opportunities and strandable cost recoveries. The calculation of strandable costs is extremely sensitive to the assumptions made, and the resulting estimates are potentially misleading if removed from the context in which they were calculated. At this point in time, ComEd does not subscribe to a certain set of assumptions or a particular estimate. The proposed legislation described above, which ComEd supports, would provide utilities the opportunity to recover their stranded costs, if any. However, ComEd believes the amount of its strandable costs could be material without allowance for recovery of costs and investments it incurred under its regulatory compact, including its duty to serve. Most reform proposals anticipating increased competition include some form of stranded cost recovery. ComEd is taking steps, such as cost- control measures, improving generating station reliability and additional depreciation, to minimize its potential stranded investment. See "Rate Matters" for additional information. ComEd. ComEd is responding, and is undertaking a significant planning effort with respect to further responses, to the developments within the utility industry. During the past several years such efforts have focused on cost reductions, including personnel reductions, efficiencies in purchasing and inventory management, and an incentive compensation system keyed to cost reduction and control. Notwithstanding these efforts, ComEd's costs remain high in comparison to its neighboring utilities. ComEd is examining its assets, particularly generating assets, with a view toward rationalizing their investment and operating costs against their ability to contribute to the revenues of ComEd under various market scenarios. Such an assessment involves the consideration of numerous factors, including revenue contribution, operating costs, impacts on ComEd's service obligations, purchase commitments and remaining assets, and the impact of various options. Such options include continued operation, indefinite suspension from operation, sale to a third party and retirement or closure. If ComEd retired or closed a generating plant, particularly a nuclear plant, without regulatory or legislative provision for continued recovery of its investment, such retirement could have a material impact on ComEd's and Unicom's financial position and results of operations. On April 17, 1996, ComEd announced that it had finalized agreements to sell two of its coal-fired generating stations, representing approximately 1,600 megawatts of generating capacity. Under the agreements, State Line and Kincaid stations would be sold for a total of $250 million, which approximates the book value of the stations. The net proceeds, after income tax effects, would be approximately $200 million, which would be used to retire or redeem existing debt. Under the terms of the sales, ComEd would enter into exclusive 15-year purchased power agreements for the output of the plants. The agreements are subject to regulatory approval, and proceedings have been pending before the ICC since May 1996 to obtain those approvals. Numerous parties have intervened in the proceedings, including various governmental and consumer groups and ComEd's principal union. Although the Administrative Law Judges have entered a proposed order recommending approval of the transactions, the ICC continues to debate various aspects of the proposed order and has not yet voted on it. ComEd's union has also filed a lawsuit in state court alleging that the labor provisions of the Kincaid agreement are violative of state law and are seeking to enjoin the ICC proceedings. ComEd had previously filed an action in federal court seeking confirmation that the state law is preempted by federal labor law, and ComEd believes that the union's allegations are without merit. These actions were consolidated in federal court, which has since ruled in favor of ComEd. The Union has appealed and also has filed a grievance under its collective bargaining agreement with ComEd claiming that ComEd is required by that agreement to require the Kincaid purchaser to assume the terms of that agreement. The Union has also filed an unfair labor practice charge with the NLRB 5 against the Kincaid purchaser regarding the purchaser's alleged failure to bargain in good faith with the Union. The State Line and Kincaid agreements give the purchasers the right to terminate the agreements if a closing has not occurred prior to December 31, 1996 for State Line and June 30, 1997 for Kincaid. Such closing has not occurred as of February 28, 1997. With respect to its transmission assets, ComEd is participating with approximately 20 other electric utility companies in an effort to form an ISO for the midwest United States. Under the structure currently contemplated, the ISO would set standard transmission rates and facilitate compliance with the FERC Order. In addition, while individual utility companies would continue to own their transmission lines, the ISO would oversee regional planning to avoid transmission constraints. Creation of the ISO will be subject to further negotiations among the parties as well as federal and state regulatory approval. ComEd is also taking actions to strengthen its relationship with its customers. On December 11, 1995, ComEd instituted a five-year base rate cap for all of its customers. The base rate cap does not affect ComEd's fuel cost or nuclear decommissioning cost recovery provisions. See "Rate Matters" for additional information about ComEd's base rate cap and other initiatives intended to give customers more choice and control over the services they seek and the price they pay. NET ELECTRIC GENERATING CAPABILITY ComEd and the Indiana Company consider their owned (non-summer) generating capability to be 22,511,000 kilowatts. After deducting summer limitations of 557,000 kilowatts, ComEd and the Indiana Company consider their net summer generating capability to be 21,954,000 kilowatts. The net generating capability available for operation at any time may be less due to regulatory restrictions, fuel restrictions, efficiency of cooling facilities and generating units being temporarily out of service for inspection, maintenance, refueling, repairs or modifications required by regulatory authorities. See "Regulation," subcaption "Nuclear" and "Item 2. Properties." ComEd's highest peak load experienced to date occurred on August 14, 1995 and was 19,212,000 kilowatts; and the highest peak load experienced to date during a winter season occurred on January 18, 1994 and was 14,179,000 kilowatts. ComEd's kilowatthour sales and generation are generally higher (primarily during the summer periods but also during the winter periods) when temperature extremes create demand for either summer cooling or winter heating. CONSTRUCTION PROGRAM Utility Operations ComEd and the Indiana Company have a construction program for the year 1997, which consists principally of improvements to their existing nuclear and other electric production, transmission and distribution facilities. It does not include funds to add new generating capacity to ComEd's system. The program, as currently approved by ComEd, calls for electric plant and equipment expenditures of approximately $982 million (excluding nuclear fuel expenditures of approximately $322 million). It is estimated that such construction expenditures will be as follows: 1997 ---- (MILLIONS OF DOLLARS) Production............................................... $420 Transmission and Distribution............................ 421 General.................................................. 141 ---- Total................................................... $982 ---- ---- 6 Such construction program includes the replacement of the steam generators at ComEd's Braidwood Unit 1 and Byron Unit 1 nuclear generating units expected to be placed in service prior to year-end 1998. The estimated replacement cost is approximately $460 million, including approximately $80 million for the cost of removal of the existing steam generators. Approximately $130 million of this estimated cost is included in the construction expenditures shown above. Approximately $140 million has been incurred through December 31, 1996. In addition, ComEd has continued to monitor the degradation of the steam generators at its Zion nuclear generating station. Recent studies indicate that the degradation is continuing and that replacement may be required sooner than 2005. No amount has been included in ComEd's construction budget for replacement of these steam generators, since ComEd has not decided whether or when to effect a replacement. Based upon its experience with the replacement activities at Braidwood and Byron, and depending on the timing of any replacement at Zion, ComEd believes such cost could be approximately $435 million if a decision to replace is made. See "Regulation," subcaption "Nuclear" for additional information relating to the replacement of the steam generators and ComEd's evaluation of the need to make additional expenditures to supplement generating capacity in light of generating outages expected in the midwestern power grid during 1997. ComEd and the Indiana Company's construction expenditures during 1996 were $950 million. ComEd's gross investment in nuclear generating capacity (excluding nuclear fuel) is $14.3 billion at December 31, 1996, and ComEd expects that investment to be approximately $14.5 billion by the end of 1997 as a result of improvements. Gross additions to and retirements from utility property, excluding nuclear fuel, of ComEd and the Indiana Company for the five years ended December 31, 1996 were $4,407 million and $469 million, respectively. ComEd periodically reviews its projection of probable future demand for electricity in its service territory. It currently projects average annual growth of 1.75% in annual peak load and 1.5% in annual output. ComEd's forecasts of peak load indicate a need for additional resources to meet demand, either through generating capacity, through equivalent purchased power or through the development of additional demand-side management resources, in 1998 and each year thereafter. However, it believes that adequate resources, including cost-effective demand-side management resources, non-utility generation resources and other-utility power purchases, could be obtained in sufficient quantities to meet such forecasted needs. If ComEd instead were to build additional capacity to meet its needs, it would need to make additional capital expenditures during 1997. The 1997 construction program includes approximately $6 million for environmental control facilities. Expenditures on such facilities were $16 million, $16 million and $24 million during 1996, 1995 and 1994, respectively. Purchase commitments for ComEd and the Indiana Company, principally related to construction and nuclear fuel, approximated $1,018 million at December 31, 1996. In addition, ComEd's estimated commitments for the purchase of coal are indicated in the following table. CONTRACT PERIOD COMMITMENT(1) -------- --------- ------------- Black Butte Coal Co............................... 1997-2000 $807 Decker Coal Co. .................................. 1997-2014 $582 Big Horn Coal Co. ................................ 1998 $ 22 -------- (1) In millions of dollars, excluding transportation costs. No estimate of future cost escalation has been made. For additional information concerning these coal contracts and ComEd's fuel supply, see "Fuel Supply" below and Notes 1 and 21 of Notes to Financial Statements in the January 31, 1997 Form 8-K Reports. 7 ComEd forecasts that internal sources will provide more than three-fourths of the funds required for ComEd's construction program and other capital requirements, including nuclear fuel expenditures, contributions to nuclear decommissioning funds, sinking fund obligations and refinancing of scheduled debt maturities. See Notes 7 and 9 of Notes to Financial Statements in the January 31, 1997 Form 8-K Reports for the summaries of the annual sinking fund requirements and scheduled maturities for ComEd preference stock and long-term debt, respectively. The forecast assumes the rate levels reflected in the Rate Order (which is the subject of a pending appeal before the Illinois Appellate Court) remain in effect. See "Rate Matters" herein for additional information. The type and amount of external financing will depend on financial market conditions and the needs and capital structure of ComEd at the time of such financing. A portion of ComEd's financing is expected to be provided through the continued sale and leaseback of nuclear fuel through ComEd's existing nuclear fuel lease facility. See Note 18 of Notes to Financial Statements in the January 31, 1997 Form 8-K Reports for more information concerning ComEd's nuclear fuel lease facility. ComEd has approximately $906 million of unused bank lines of credit at December 31, 1996 which may be borrowed at various interest rates and which may be secured or unsecured. The interest rate is set at the time of a borrowing and is based on several floating rate bank indices plus a spread which is dependent upon the credit ratings of ComEd's outstanding first mortgage bonds or on a prime interest rate. Collateral, if required for the borrowings, would consist of first mortgage bonds issued under and in accordance with the provisions of ComEd's mortgage. See Note 10 of Notes to Financial Statements in the January 31, 1997 Form 8-K Reports for information concerning lines of credit. See the Statements of Consolidated Cash Flows in the January 31, 1997 Form 8-K Reports for the construction expenditures and cash flow from operating activities for the years 1996, 1995 and 1994. During 1996, ComEd sold and leased back approximately $317 million of nuclear fuel through its existing nuclear fuel lease facility. In addition, ComEd issued $199 million of pollution control obligations, the proceeds of which were used to redeem an equivalent amount of other pollution control obligations. In January 1997, ComEd issued $150 million principal amount of 7.375% Notes due January 15, 2004, $150 million principal amount of 7.625% Notes due January 15, 2007 and $150 million principal amount of 8.50% Company- obligated preferred securities of subsidiary trust due January 15, 2027, the proceeds of which were used to discharge current maturities of long-term debt and to redeem on March 11, 1997 $200 million principal amount of First Mortgage 9 1/2% Bonds, Series 57, due May 1, 2016. See the Statements of Consolidated Cash Flows and Note 4 of Notes to Financial Statements in the January 31, 1997 Form 8-K Reports for information regarding common stock activity. As of February 28, 1997, ComEd has an effective "shelf" registration statement with the SEC for the future sale of up to an additional $505 million of debt securities and cumulative preference stock for general corporate purposes of ComEd, including the discharge or refund of other outstanding securities. Unregulated Operations Unicom has approved capital expenditures for 1997 of approximately $56 million for Unicom Thermal, primarily representing the construction costs of its district cooling facilities in Chicago and its share of construction costs in Boston and Windsor. Unicom Thermal's first two district cooling facilities in Chicago began serving customers in May 1995 and July 1996. Its third district cooling facility in Chicago is scheduled to be completed in 1997. As of December 31, 1996, Unicom Thermal's purchase commitments, principally related to construction, were approximately $42 million. Unicom expects to obtain funds to invest in its unregulated subsidiaries principally from dividends received on its ComEd common stock and from bank borrowings. The availability of ComEd's dividends to Unicom is dependent on ComEd's financial performance and cash position. Other forms of financing by ComEd to Unicom or the unregulated subsidiaries of Unicom, such as loans or additional equity investments, none of which is expected, would be subject to prior approval by the ICC. 8 Unicom Enterprises has a $200 million credit facility which will expire in 1999, of which $105 million was unused as of December 31, 1996. The credit facility can be used by Unicom Enterprises to finance investments in unregulated businesses and projects, including Unicom Thermal, and for general corporate purposes. The credit facility is guaranteed by Unicom and includes certain covenants with respect to Unicom's and Unicom Enterprises' operations. Interest rates for borrowings under the credit facility are set at the time of a borrowing and are based on either a prime interest rate or a floating rate bank index plus a spread which varies with the credit rating of ComEd's outstanding first mortgage bonds. See Note 10 of Notes to Financial Statements in Unicom's January 31, 1997 Form 8-K Report for additional information regarding certain covenants with respect to Unicom's and Unicom Enterprises' operations. The foregoing paragraphs in this "Construction Program" section include forward-looking statements with respect to the future levels of capital expenditures which are necessarily based upon assumptions regarding estimated costs and availability of materials and services as well as contingencies. Unforeseen events or conditions may require changes in the scope of work with consequent changes in the timing and level of the projected expenditures. In addition, changes in laws and regulations, or their interpretation and enforcement, can affect the scope of certain projects, the manner in which they are undertaken and the costs associated therewith. While ComEd and Unicom Thermal give consideration to such factors in developing their respective budgets, such consideration cannot predict the course of future events or anticipate the interaction of multiple factors beyond management's control upon project timing and cost. Consequently, actual results could differ materially from those described. RATE MATTERS On January 9, 1995, the ICC issued its Rate Order in the proceedings relating to ComEd's February 1994 rate increase request. The Rate Order provided, among other things, for (i) an increase in ComEd's total revenues of approximately $301.8 million (excluding add-on revenue taxes) or 5.2%, on an annual basis, including a $303.2 million increase in base rates, (ii) the collection of municipal franchise costs on an individual municipality basis through a rider, and (iii) the use of a rider, with annual review proceedings, to pass on to ratepayers increases or decreases in estimated costs associated with the decommissioning of ComEd's nuclear generating units. See "Depreciation and Decommissioning" in Note 1 of Notes to Financial Statements in the January 31, 1997 Form 8-K Reports for additional information related to the level of decommissioning cost collections. The ICC also determined that the Units were 100% "used and useful" and that the previously determined reasonable costs of such Units, as depreciated, should be included in full in ComEd's rate base. The rates provided in the Rate Order became effective on January 14, 1995; however, they are being collected subject to refund as a result of subsequent judicial action. As of December 31, 1996, electric operating revenues of approximately $651 million (excluding revenue taxes) are subject to refund. Intervenors and ComEd have filed appeals of the Rate Order with the Illinois Appellate Court, and oral argument was heard on January 28, 1997. On December 11, 1995, ComEd announced a series of customer initiatives as part of its larger ongoing effort to address the need to give all customer classes the opportunity to benefit from increased competition in the electric utility business, while retaining the benefits (such as reliability) of current regulation and ensuring utilities' cost recovery for commitments made under the obligation to serve customers. The initiatives include a five-year cap on base electric rates at current levels and various customer service and incentive pricing programs designed to allow customers more choice and control over the services they seek and the prices they pay. These initiatives are in addition to previously implemented special discount contract rate programs for new or existing industrial customers. ComEd anticipates the initiatives will be fully implemented in 1997 and will reduce its revenues by approximately $40 million annually (including the effects of previously implemented 9 initiatives and before income tax effects) primarily through changes in energy utilization. Additionally in September 1996, the ICC approved ComEd's additional depreciation initiative for 1996. ComEd's costs increased by $30 million in 1996 (before income tax effects), through the increase in depreciation charges on its nuclear generating units. ComEd also continues to consider the possibility of additional depreciation options. ComEd expects the effects of these initiatives will be offset through increased revenues by growth in its sales. Under ComEd's initiatives, the five-year base rate cap at current levels became effective in December 1995 and will extend until January 1, 2001. The rate cap does not affect ComEd's fuel cost or nuclear decommissioning cost recovery provisions. ComEd's fuel cost variances will continue to be collected through its fuel adjustment clause, and such collections will continue to be subject to annual reconciliation proceedings before the ICC. Likewise, nuclear decommissioning costs will continue to be collected as described in Note 1 of Notes to Financial Statements under "Depreciation and Decommissioning" in the January 31, 1997 Form 8-K Reports. See "Changes in the Electric Utility Industry" herein for information regarding the legislative proposal supported by ComEd. FUEL SUPPLY The kilowatthour generation of ComEd and the Indiana Company for 1996 was provided from the following fuel sources: nuclear 67%, coal 30%, oil 1% and natural gas 2%. The lower nuclear generation as a percentage of total generation for 1996 compared to recent prior years is primarily due to scheduled and non-scheduled outages at certain of ComEd's nuclear generating stations. See "Regulation," subcaption "Nuclear." Nuclear Fuel ComEd has uranium concentrate inventory, supply contracts and subsidiary resources sufficient to meet all of its uranium concentrate requirements through 1997 and portions of its uranium concentrate requirements for periods beyond 1997. ComEd's contracted conversion services are sufficient to meet all of its uranium conversion requirements through 1998. All of ComEd's enrichment requirements have been contracted through September 1999 and portions of its enrichment requirements for periods beyond 1999. Commitments for fuel fabrication have been obtained for ComEd's nuclear units at least through 2005. ComEd does not anticipate that it will have any difficulty in negotiating contracts for uranium concentrates, conversion, enrichment and fuel fabrication services for its remaining requirements. Under the Energy Policy Act of 1992, investor-owned electric utilities that have purchased enrichment services from the DOE are being assessed amounts to fund a portion of the cost for the decontamination and decommissioning of uranium enrichment facilities owned and previously operated by the DOE. ComEd's portion of such assessments is estimated to be approximately $15 million per year (to be adjusted annually for inflation) to 2007. The Act provides that such assessments are to be treated as a cost of fuel. See Note 1 of Notes to Financial Statements under "Deferred Unrecovered Energy Costs" in the Janaury 31, 1997 Form 8-K Reports for information related to the accounting for such costs. See "Regulation," subcaption "Nuclear" herein for information concerning the disposal of radioactive waste. Coal ComEd burns low sulfur western coal at all its coal-fired stations. ComEd's present policy is to maintain a coal inventory of at least 30 days of high utilization. As of February 28, 1997, coal inventories approximated 35 days. The average cost per ton of coal consumed by ComEd and the Indiana Company for the years 1994, 1995 and 1996, including transportation charges, was $39.50, $41.72 and $41.16, respectively. 10 Compared to other utilities, ComEd has relatively low average fuel costs as a result of its reliance predominantly on lower cost nuclear generation. ComEd's coal costs, however, are high compared to those of other utilities. ComEd's western coal contracts and its rail contracts for delivery of the western coal provide for the purchase of certain coal at prices substantially above currently prevailing market prices, and ComEd has significant purchase commitments under its contracts. In addition, as of December 31, 1996, ComEd had unrecovered fuel costs in the form of coal reserves of approximately $364 million. In prior years, ComEd's commitments for the purchase of coal exceeded its requirements. Rather than take all the coal it was required to take, ComEd agreed to purchase the coal in place in the form of coal reserves. For additional information concerning ComEd's coal purchase commitments, see "Construction Program," subcaption "Utility Operations" above. For additional information regarding ComEd's fuel reconciliation proceedings and coal reserves, see "Fuel Adjustment Clause" below and Note 1 of Notes to Financial Statements in the January 31, 1997 Form 8-K Reports. Oil and Gas ComEd's fast-start peaking units use middle distillate oils. Approximately half of this capacity can also be fueled with natural gas. ComEd's 2,698,000 kilowatt Collins station is fueled with natural gas and residual oil. ComEd purchases oil and gas in the spot market as needed. The conversion of four of the five units at Collins station to dual fuel capability (residual oil and natural gas) was completed during 1994 and 1996 and a fifth unit is currently being converted. ComEd has a contract for the delivery and storage of natural gas from gas pipelines to Collins station which expires in 2003. Fuel Adjustment Clause Through its fuel adjustment clause, ComEd recovers from its customers the cost of the fuel used to generate electricity and purchased power as compared to fuel costs included in base rates. The amounts collected under the fuel adjustment clause are subject to review by the ICC, which, under the Illinois Public Utilities Act, is required to hold annual public hearings to reconcile the collected amounts with the actual cost of fuel and power prudently purchased. In the event that the collected amounts exceed such actual cost, then the ICC can order that the excess be refunded. For additional information concerning ComEd's fuel reconciliation proceedings and coal reserves, see Note 1 of Notes to Financial Statements in the January 31, 1997 Form 8-K Reports. REGULATION ComEd and the Indiana Company are subject to state and federal regulation in the conduct of their respective businesses, including the operations of Cotter. Such regulation includes rates, securities issuance, nuclear operations, environmental and other matters. Particularly in the cases of nuclear operations and environmental matters, such regulation can and does affect operational and capital expenditures. ComEd is subject to regulation by the ICC as to rates and charges, issuance of securities (other than debt securities maturing within twelve months), service and facilities, classification of accounts, transactions with affiliated interests as defined in the Illinois Public Utilities Act and other matters. In addition, the ICC in certain of its rate orders has exercised jurisdiction over ComEd's environmental control program. ComEd is subject to the jurisdiction of the FERC with respect to the issuance of debt securities maturing within twelve months. ComEd is also subject to the jurisdiction of the FERC and the DOE under the Federal Power Act with respect to certain other matters, including the sale for resale of electric energy and the transmission of electric energy in interstate commerce, and to the jurisdiction of the DOE with respect to the disposal of spent nuclear fuel and other radioactive wastes. 11 Unicom is a public utility holding company as defined by the Public Utility Holding Company Act of 1935 because of its majority ownership of common stock of ComEd, and ComEd is a public utility holding company as defined in such Act because of its ownership of the Indiana Company. However, both Unicom and ComEd are exempt from most provisions of such Act. The Indiana Company, an "affiliated interest" of ComEd within the meaning of the Illinois Public Utilities Act, is subject to regulation by the Indiana Utility Regulatory Commission and to the jurisdiction of the FERC, the DOE and federal and state of Indiana pollution control and other agencies. Nuclear The IDNS has jurisdiction over certain activities in Illinois relating to nuclear power and safety, and radioactive materials. Effective June 1, 1987, the IDNS replaced the NRC as the regulator and licensor of certain source, by- product and special nuclear material in quantities not sufficient to form a critical mass, including such material contained in various measuring devices used at fossil-fuel power plants. The IDNS has promulgated regulations which are substantially similar to the corresponding federal regulations. The IDNS also has authority to license a low-level radioactive waste disposal facility and to regulate alternative methods for disposing of materials which contain only trace amounts of radioactivity. Under the Nuclear Waste Policy Act of 1982, the DOE is responsible for the selection and development of repositories for, and the disposal of, spent nuclear fuel and high-level radioactive waste. ComEd, as required by that Act, has signed a contract with the DOE to provide for the disposal of spent nuclear fuel and high-level radioactive waste from ComEd's nuclear generating stations beginning not later than January 1998. The DOE advised ComEd in December 1996 that it anticipates it will be unable to begin acceptance of spent nuclear fuel by January 1998. It is expected this delivery schedule will be delayed significantly. Extended delays in spent nuclear fuel acceptance by the DOE would lead to ComEd's consideration of costly storage alternatives. The contract with the DOE requires ComEd to pay the DOE a one-time fee applicable to nuclear generation through April 6, 1983 of approximately $277 million, with interest to date of payment, and a fee payable quarterly equal to one mill per kilowatthour of nuclear-generated and sold electricity after April 6, 1983. As provided for under the contract, ComEd has elected to pay the one-time fee, with interest, just prior to the first delivery of spent nuclear fuel to the DOE. The costs incurred by the DOE for disposal activities will be paid out of fees charged to owners and generators of spent nuclear fuel and high-level radioactive waste. ComEd has primary responsibility for the interim storage of its spent nuclear fuel. ComEd's capability to store spent fuel is adequate for some years to come. Dresden station has spent fuel capacity through the year 2001, Zion station has capacity through 2004, Quad Cities has capacity through 2006 and all of the other stations have capacity through at least 2008. ComEd is developing on site dry cask spent fuel storage for Dresden Unit 1 at a budgeted cost of $21 million. The Dresden Unit 1 facility will use existing technology procured to meet the federal requirements for both storage and transportation of spent nuclear fuel. The facility is expected to be used by 1999. Meeting other spent fuel storage requirements beyond the years stated above could require new and separate storage facilities. The full costs for ComEd's other nuclear units have not been determined. The federal Low-Level Radioactive Waste Policy Act of 1980 provides that states may enter into compacts to provide for regional disposal facilities for low-level radioactive waste and restrict use of such facilities to waste generated within the region. Between July 1, 1994 and July 1, 1995, there were no commercial operating sites in the United States for the disposal of low- level radioactive waste available to ComEd. However, the Barnwell, South Carolina low-level radioactive waste site was reopened on July 1, 1995 and is available to ComEd. ComEd entered into an agreement with the Barnwell site operator and began shipping waste to Barnwell on August 17, 1995. Illinois has entered into a compact with the state of Kentucky, which has been approved by Congress as required by the 12 Waste Policy Act. Neither Illinois nor Kentucky currently has an operational site, and one is currently not expected to be operational until after the year 2000. ComEd has temporary on-site storage capacity at its nuclear generating stations for a limited amount of low-level radioactive waste. ComEd anticipates the possibility of continuing difficulties in disposing of low- level radioactive waste. Since the reopening and availability of the Barnwell site, ComEd continues to reevaluate its options. ComEd is subject to the jurisdiction of the NRC with respect to its nuclear generating stations. The NRC regulations control the granting of permits and licenses for the construction and operation of nuclear generating stations and subject such stations to continuing review and regulation. The NRC review and regulatory process covers, among other things, operations, maintenance, and environmental and radiological aspects of such stations. The NRC may modify, suspend or revoke licenses and impose civil penalties for failure to comply with the Atomic Energy Act, the regulations under such Act or the terms of such licenses. Nuclear operations have been, and remain, an important focus of ComEd--given the impact of such operations on overall operating and maintenance expenditures and the ability of nuclear power plants to produce electric energy at a relatively low marginal cost. ComEd operates a large number of nuclear plants, ranging from the older Zion, Dresden and Quad Cities stations to the more recently completed LaSalle, Byron and Braidwood stations, and is intent upon safe, reliable and efficient operation. These plants were constructed over a period of time in which technology, construction procedures and regulatory initiatives and oversight have evolved, with the result that older plants generally require greater attention and resources to meet regulatory requirements and expectations as well as to maintain operational reliability. On January 29, 1997, the NRC determined that ComEd's Dresden nuclear generating station should remain on the NRC's list of plants to be monitored closely, where it has been since being placed on that list in 1992. The NRC also determined that ComEd's LaSalle and Zion nuclear generating stations should be added to that list. Although in each case the NRC recognized that ComEd had undertaken significant management changes and had accomplished a number of performance improvements, it expressed concern with specific issues at each station and expressed a general concern with the sustainability of improvements as the basis for its determination. The listing of the plants does not prevent ComEd from operating the generating units; however, it does mean that the NRC will devote additional resources to monitoring ComEd's operating performance and that ComEd will need to work to demonstrate to the NRC the sustainability of improvements which it believes it has undertaken and is continuing to implement. In addition, an operational event occurred in the Zion station control room during February 1997. As a result, the NRC Regional staff has issued a letter confirming ComEd's commitment to conduct a comprehensive assessment of the event and to develop and implement a program to ensure adequate personnel performance in the future, including upgraded operator training. ComEd must brief the staff on the results of its investigation, its proposed corrective actions and other matters prior to restarting either Zion unit, both of which are currently out of service. In late January 1997, the NRC also took the unusual additional step of requiring ComEd to submit information to allow the NRC to determine what actions, if any, should be taken to assure that ComEd can safely operate its six nuclear generating stations while sustaining performance improvement at each site. The request also requires ComEd to submit information regarding the criteria that it has established, or plans to establish, to measure performance and to explain ComEd's proposed actions if the criteria are not met. The request states the NRC staff's concerns with the "cyclical safety performance of ComEd nuclear stations," noting the presence on the list of plants to be monitored closely of Dresden, LaSalle and Zion stations at various times during the past ten years. It also noted concerns regarding "ComEd's ability to establish lasting and effective programs that result in sustained performance improvement." The request does acknowledge the management and organizational changes implemented by ComEd, including the "additional focus placed on management 13 and leadership, accountability, the problem identification and corrective action processes, material condition improvement, work control, and radiation protection." It also acknowledges improvements seen at Dresden and Quad Cities stations; but indicated at the same time performance declines were observed at both LaSalle and Zion stations. The problems identified by the NRC are consistent with weaknesses that had been identified in station self- assessments initiated by ComEd; and management had already undertaken to develop and implement programs designed to address these issues. ComEd has prepared a response to the NRC which ComEd's management believes provides sufficient information to demonstrate its ability to operate its nuclear generating stations while sustaining performance improvements. ComEd expects to submit this response to the NRC on March 28, 1997. ComEd has devoted, and intends to continue to devote, significant resources to the management and operations of its nuclear generating stations. Over the past several years, it has increased and reinforced station management with managers drawn from other utilities which have resolved similar operational and performance issues. It has also sought to identify, anticipate and address operating and performance issues in a safe, cost-effective manner while seeking to improve the availability and capacity factors of its nuclear generating units. ComEd's activities with respect to its nuclear generating stations have included improvements in operating and personnel procedures and repair and replacement of equipment and can result in longer unit outages. In this regard, ComEd's management decided to continue the present unit outages at its LaSalle station until the identified performance issues have been appropriately addressed. Zion station is also presently out of service. ComEd presently expects the LaSalle outage to extend into the fall of 1997. Similarly, the current Zion Unit 2 outage is expected to extend into and likely beyond the summer of 1997, and Zion Unit 1 is expected to be out of service until early 1998. As noted above, the Company must brief the NRC regional staff as to certain matters before restarting either Zion unit. The LaSalle and Zion outages are part of several outages of nuclear and fossil generating stations that several utilities operating in the Midwestern power grid (including ComEd) are expecting during 1997. ComEd is evaluating the need for reinforcement of its available generating and transmission capacity and the availability of power from third parties in light of these regional circumstances. Such evaluation includes consideration of additional expenditures of approximately $50 million, a portion of which is capital, relating to enhancing generating station availability, transmission reinforcement and purchasing power from other utilities, as well as consideration of methods of managing customer demand for power. Such expenditures could include demand charges for purchased power which are not recoverable through the fuel adjustment clause under these circumstances, but do not reflect the related energy costs for such purchased power. Generating station availability and performance during a year may be issues in fuel reconciliation proceedings in assessing the prudence of fuel and power purchases during such year. Final ICC orders have been issued in fuel reconciliation proceedings for years prior to 1994. In 1996, an intervenor filed testimony in the fuel reconciliation proceeding for 1994 seeking a refund of approximately $90 million relating to nuclear station performance. In accordance with a commitment to the NRC, ComEd examined its operating boiling water nuclear generating units in 1983 to determine the existence or extent of inter-granular stress corrosion in certain of the large diameter piping in those units. Inter-granular stress corrosion was discovered in the Dresden and Quad Cities units. ComEd replaced the stainless steel piping susceptible to stress corrosion at Dresden Unit 3. ComEd believes the remedial actions taken to minimize the impact of stress corrosion cracking on BWR stainless steel reactor coolant piping have been successfully completed on Dresden Units 2 and 3, Quad Cities Units 1 and 2 and LaSalle Units 1 and 2. Future work on this piping will consist of routine inspections and repairs. As a result of ComEd's experience with the effects of inter-granular stress corrosion of stainless steel materials in BWRs, an inspection, 14 repair and mitigation program of reactor vessel internals has been implemented. This effort is intended to prevent non-budgeted costs and refueling outage extensions resulting from unanticipated repairs occurring during a refueling outage. For 1997, estimated expenditures for installation of mitigation systems for LaSalle and Dresden stations are $1.7 million and $9.4 million, respectively. ComEd is replacing the steam generators at Byron Unit 1 and Braidwood Unit 1. The steam generator replacements are currently expected to be placed in service prior to year-end 1998. The estimated replacement cost is approximately $460 million, including approximately $80 million for the cost of removal of the existing steam generators. Approximately $130 million of this estimated cost is included in the 1997 construction program. Approximately $140 million has been incurred through December 31, 1996. In addition, ComEd has continued to monitor the degradation of the steam generators at its Zion nuclear generating station. Recent studies indicate that the degradation is continuing and that replacement may be required sooner than 2005. No amount has been included in ComEd's construction budget for replacement of these steam generators, since ComEd has not decided whether or when to effect a replacement. Based upon its experience with the replacement activities at Braidwood and Byron, and depending on the timing of any replacement at Zion, ComEd believes such cost could be approximately $435 million if a decision to replace is made. As of December 31, 1996, ComEd estimated that it will expend approximately $15.5 billion, excluding any contingency allowance, for decommissioning costs primarily during the period from 2007 through 2032. Such costs, estimated at December 31, 1996 to aggregate $3.9 billion in current-year (1997) dollars, are expected to be funded by external decommissioning trusts which ComEd established in compliance with Illinois law and into which ComEd has been making annual contributions. Future decommissioning cost estimates may be significantly affected by the adoption of or changes to NRC regulations as well as changes in the assumptions used in making such estimates including changes in technology, available alternatives for the disposal of nuclear waste, and inflation. See Note 1 of Notes to Financial Statements under "Depreciation and Decommissioning" in the January 31, 1997 Form 8-K Reports for additional information regarding decommissioning costs. During the year 1996, civil penalties were imposed on ComEd on seven occasions for violations of NRC regulations in amounts aggregating $450,000. Since January 1, 1997, civil penalties were imposed on ComEd on three occasions for violations of NRC regulations in amounts aggregating $850,000. To ComEd's knowledge there are four current enforcement issues outstanding and under review by the NRC. The uranium mining and milling operations of Cotter are subject to regulation by the state of Colorado and the NRC. Environmental ComEd and the Indiana Company are subject to regulation regarding environmental matters by the United States and by the states of Illinois, Indiana, Iowa and, in the case of Cotter, Colorado, and by local jurisdictions where ComEd and the Indiana Company operate their facilities. The IPCB has jurisdiction over environmental control in the state of Illinois, which includes authority to regulate air, water and noise emissions and solid waste disposal, together with the Illinois EPA, which enforces regulations of the IPCB and issues permits in connection with environmental control. The U.S. EPA administers certain federal statutes relating to such matters. The IPCB has published a proposed rule under which it would have the power to regulate radioactive air pollutants under the Illinois Environmental Protection Act and the Federal Clean Air Act Amendments of 1977. Air quality regulations, promulgated by the IPCB as well as the Indiana and Hammond Departments of Environmental Management in accordance with federal standards, impose restrictions on the emission of particulates, sulfur dioxide, nitrogen oxides and other air pollutants and require permits from the respective state and local environmental protection agencies for the operation of 15 emission sources. Permits authorizing operation of ComEd's fossil fuel generating facilities subject to this requirement have been obtained and, where such permits are due to expire, ComEd has, in a timely manner, filed applications for renewal or requested extensions of the existing permits. Under the Federal Clean Water Act, NPDES permits for discharges into waterways are required to be obtained from the U.S. EPA or from the state environmental agency to which the permit program has been delegated. Those permits must be renewed periodically. ComEd and the Indiana Company either have NPDES permits for all of their generating stations or have pending applications for such permits under the current delegation of the program to the Illinois EPA or the Indiana Department of Environmental Management. ComEd is also subject to the jurisdiction of certain pollution control agencies of the state of Iowa with respect to the discharge into the Mississippi River from Quad Cities station. The Great Lakes Critical Programs Act of 1990 requires that, following the issuance of guidance by the U.S. EPA, the states of Illinois and Indiana, among others, adopt water quality standards, policies and procedures to assure protection of the water quality of the Great Lakes. Water quality standards and procedures that the states would be required to adopt are to be based on the U.S. EPA's final guidance issued in March 1995. ComEd is presently following state activities to promulgate rules implementing the final guidance, and assessing the extent to which such may impact certain ComEd facilities. Ultimately, the new rules may require that ComEd install additional pollution control equipment or restrict operations at its facilities that discharge, either directly or indirectly, into Lake Michigan. The Clean Air Amendments require reductions in nitrogen oxide emissions from ComEd's and the Indiana Company's fossil fuel generating units. In January 1996, the U.S. EPA issued a final rule exempting existing sources inside the Chicago ozone non-attainment area from further nitrogen oxide emission reductions; however, this exemption is limited pending further study of ozone transport. The Illinois EPA is also considering nitrogen oxide emission reductions at ComEd generating stations outside the Chicago ozone non- attainment area also due to ozone transport. Under the Acid Rain program, the U.S. EPA will prepare nitrogen oxide emission regulations that would apply to all of ComEd's boilers with a compliance date of January 1, 2000. These regulations were finalized on December 19, 1996 and include limits for cyclone and tangentially fired boilers of 0.86 and 0.40 lbs/mm Btu, respectively. CERCLA provides for immediate response and removal actions coordinated by the U.S. EPA to releases of hazardous substances into the environment and authorizes the U.S. Government either to clean up sites at which hazardous substances have created actual or potential environmental hazards or to order persons responsible for the situation to do so. Under CERCLA, generators and transporters of hazardous substances, as well as past and present owners and operators of hazardous waste sites, are made strictly, jointly and severally liable for the cleanup costs of waste at sites, most of which are listed by the U.S. EPA on the NPL. These responsible parties can be ordered to perform a cleanup, can be sued for costs associated with a U.S. EPA directed cleanup, may voluntarily settle with the U.S. Government concerning their liability for cleanup costs, or may voluntarily begin a site investigation and site remediation prior to listing on the NPL under state oversight. Various states, including Illinois, have enacted statutes which contain provisions substantially similar to CERCLA. ComEd and its subsidiaries are or are likely to become parties to proceedings initiated by the U.S. EPA, state agencies and/or other responsible parties under CERCLA with respect to a number of sites, including MGP sites, or may voluntarily undertake to investigate and remediate sites for which they may be liable under CERCLA. MGPs manufactured gas in Illinois from approximately 1850 to 1950. ComEd generally did not operate MGPs as a corporate entity but did, however, acquire MGP sites as part of the absorption of smaller utilities. Approximately half of these sites were transferred to Northern Illinois Gas Company 16 as part of a general conveyance in 1954. ComEd also acquired former MGP sites as vacant real estate on which ComEd facilities have been constructed. To date, ComEd has identified 44 former MGP sites for which it may be liable for remediation. ComEd presently estimates that its costs of former MGP site investigation and remediation will aggregate from $25 million to $150 million in current-year (1997) dollars. It is expected that the costs associated with investigation and remediation of former MGP sites will be incurred over a period of years. Because ComEd is not able to determine the most probable liability for such MGP costs, in accordance with accounting standards, a reserve of approximately $25 million has been included on the Consolidated Balance Sheets in the January 31, 1997 Form 8-K Reports as of December 31, 1996, which reflects the low end of the range of ComEd's estimate of the liability associated with former MGP sites. In addition, as of December 31, 1996, a reserve of $8 million has been included on the Consolidated Balance Sheets in the January 31, 1997 Form 8-K Reports representing ComEd's estimate of the liability associated with cleanup costs of remediation sites other than former MGP sites. Approximately half of this reserve relates to anticipated cleanup costs associated with a property formerly used as a tannery which was purchased by ComEd in 1973. Unicom and ComEd presently estimate that ComEd's costs of investigating and remediating the former MGP and other remediation sites pursuant to CERCLA and state environmental laws will not have a material impact on the financial position or results of operations of Unicom or ComEd. These cost estimates are based on currently available information regarding the responsible parties likely to share in the costs of responding to site contamination, the extent of contamination at sites for which the investigation has not yet been completed and the cleanup levels to which sites are expected to have to be remediated. In 1991, the U.S. Government filed a complaint in U.S. District Court alleging that ComEd and four other defendants are PRPs for remediation costs associated with surface, soil and groundwater contamination alleged to have occurred from the disposal by other persons of hazardous wastes at a site located near ComEd's Byron station near Byron, Illinois. The U.S. Government alleges that a portion of the site is owned by ComEd. The U.S. Government is presently seeking reimbursement from the PRPs for past study and response costs associated with the site of approximately $7 million. On or about October 31, 1996, ComEd and the U.S. Government filed with the Court a joint statement indicating that they had reached an agreement in principle to settle ComEd's total liability for a total payment of $1.35 million in cash and services. The outcome of many of the regulatory proceedings referred to above, if not favorable, could have a material adverse effect on Unicom and ComEd's future business and operating results. An unresolved issue is whether exposure to EMFs may result in adverse health effects or damage to the environment. EMFs are produced by virtually all devices carrying or utilizing electricity, including transmission and distribution lines as well as home appliances. If regulations are adopted related to EMFs, they could affect the construction and operation of electrical equipment, including transmission and distribution lines and the cost of such equipment. ComEd cannot predict the effect on the cost of such equipment or operations if new regulations related to EMFs are adopted. In the absence of such regulations, EMFs have nonetheless become an issue in siting facilities and in other land use contexts. Litigation has been filed in a variety of locations against a variety of defendants (including ComEd) alleging that the presence or use of electrical equipment has had an adverse effect on the health of persons or has caused a diminution in property values of land adjacent to these facilities. If plaintiffs are successful in litigation of this type and it becomes widespread, the impact on ComEd and on the electric utility industry is not predictable, but could be severe. From time to time, Unicom and its subsidiaries are, or are claimed to be, in violation of or in default under orders, statutes, rules or regulations relating to environmental controls and other matters, compliance plans imposed upon or agreed to by them or permits issued by various state and federal agencies for the construction or operation of their facilities. Unicom and ComEd do not believe, 17 so far as they now foresee, that such violations or defaults will have a material adverse effect on their future business and operating results, except for events otherwise described in this Annual Report on Form 10-K, which could have such an effect. EMPLOYEES Unicom and its subsidiary companies employed 16,871 people at December 31, 1996. ComEd and the Indiana Company had approximately 16,845 employees at December 31, 1996, of which approximately 9,270 ComEd employees were represented by Local 15 of the IBEW and 131 Indiana Company employees were represented by Local 12502 of the United Steelworkers of America. The existing collective bargaining agreement with Local 15 provides, among other things, for a term expiring on September 30, 1997, a retroactive wage increase to April 1, 1995 (substantially all of which had been accrued on ComEd's books as of December 31, 1995), a further wage increase of approximately 2.7% effective on April 1, 1996 and a 1.5% wage increase effective on April 1, 1997. In addition, the agreement provides that union employees are eligible to receive 1995 and 1996 incentive payments dependent upon the achievement of certain corporate and individual goals and reflects a previously implemented voluntary separation offer to employees who accepted and left ComEd's employ by year-end 1995. For the term of the agreement, a revision to the provision relative to contracting work was negotiated which will give ComEd the flexibility needed to deal with personnel relocations and repositioning following the voluntary separation employee reduction, as well as to smooth out the peaks and valleys in the labor requirements of the business. This flexibility will provide a stable work environment for ComEd's employees. The supplemental agreements covering life insurance, savings and investment plan, healthcare coverage for medical, dental and vision are effective through September 30, 1997. The supplemental agreement covering pension benefits is effective through September 30, 1999. INTERCONNECTIONS ComEd has interconnections for the transmission of electricity with Central Illinois Light Company, Central Illinois Public Service Company, Illinois Power Company, Indiana Michigan Power Company (a subsidiary of American Electric Power Company), Interstate Power Company, MidAmerican Energy Company, Northern Indiana Public Service Company, Wisconsin Electric Power Company and Wisconsin Power and Light Company for the purpose of exchanging energy and for other forms of mutual assistance. ComEd and 14 other Midwest power systems are regular members of MAIN (which also includes 23 associate members and five affiliate members). The members have entered into an agreement to work together to ensure the reliability of electric power production and transmission throughout the area they serve. FRANCHISES ComEd's franchises are in general deemed adequate to permit it to engage in the business it now conducts. In the city of Chicago, ComEd operates under a nonexclusive electric franchise ordinance effective January 1, 1992, and continuing in force until December 31, 2020. ComEd derives approximately one-third of its ultimate consumer revenues from customers located within the city of Chicago. 18 The electric business outside of the city of Chicago is conducted in municipalities under nonexclusive franchises and, where required, under certificates of convenience and necessity granted by the ICC. The following tabulation summarizes as of December 31, 1996 the expiration dates of the electric franchises held in the 396 municipalities outside of the city of Chicago capable of granting franchises and in which ComEd currently provides electric service. ESTIMATED NUMBER OF AGGREGATE FRANCHISE EXPIRATION PERIODS MUNICIPALITIES POPULATION - ---------------------------- -------------- ---------- 1997-2006............................................. 3 89,000 2007-2017............................................. 11 97,000 2018-2028............................................. 3 4,000 2029-2039............................................. 1 * 2040 and subsequent years............................. 375 4,032,000 No stated time limit.................................. 3 61,000 - -------- *Less than 1,000 people. EXECUTIVE OFFICERS OF THE REGISTRANT The effective year of election of the executive officers to their present positions and the prior positions they have held with Unicom or other companies since January 1, 1992 are described below. NAME AND AGE POSITION -------------- ------------------------------------------------------------ James J. Chairman and Chief Executive Officer of Unicom since 1994 O'Connor, 60 and Chairman and Chief Executive Officer of ComEd since 1980. Leo F. Mullin, Vice Chairman of Unicom since 1995; Vice Chairman of ComEd 54 since 1995; President and Chief Operating Officer of First Chicago Corporation, 1993 to 1995 and Chairman, President and Chief Executive Officer of American National Bank and Trust Company of Chicago, 1992 to 1993. Samuel K. President of Unicom since 1994; President of ComEd since Skinner, 58 1993; General Chairman of Republican National Committee, 1992 to 1993 and Chief of Staff to President of the United States, 1992. Donald A. Senior Vice President of Unicom since 1995; President of Petkus, 55 Unicom Thermal since 1995; Senior Vice President of ComEd since 1992 and Vice President of ComEd, 1992. John C. Vice President of Unicom since 1994 and Vice President of Bukovski, 54 ComEd since 1989. John T. Vice President of Unicom since 1996; Vice President of ComEd Costello, 48 since 1996; Manager of Corporate Relations of ComEd, 1995 to 1996 and Manager of Public Affairs of ComEd, 1992 to 1995. Thomas J. Vice President of Unicom since 1996; Vice President of ComEd McCaffrey, 52 since 1996; Vice President of Mercer Management Consulting, 1995 to 1996 and Corporate Senior Vice President of First Chicago Corporation, 1992 to 1994. Roger F. Comptroller of Unicom since 1994 and Comptroller of ComEd Kovack, 48 since 1989. Dennis F. Treasurer of Unicom since 1994 and Treasurer of ComEd since O'Brien, 51 1989. David A. Secretary of Unicom since 1994 and Secretary of ComEd since Scholz, 55 1989. The present term of office of each of the above executive officers extends to the first meeting of Unicom's Board of Directors after the next annual election of Directors scheduled to be held on May 29, 1997. There are no family relationships among the executive officers, directors and nominees for director of Unicom. 19 OPERATING STATISTICS YEAR ENDED DECEMBER 31 ---------------------------------- 1996 1995 1994 ---------- ---------- ---------- Operating Revenues (thousands of dol- lars)(1): Residential............................... $2,541,873 $2,621,038 $2,273,763 Small commercial and industrial........... 2,113,716 2,073,998 1,917,084 Large commercial and industrial........... 1,445,708 1,425,784 1,381,251 Public authorities........................ 503,004 487,142 452,512 Electric railroads........................ 29,651 26,894 26,179 Provisions for revenue refunds--ultimate consumers................................ -- -- (15,909) Sales for resale (net of provisions for revenue refunds)......................... 235,041 207,256 187,147 Other revenues............................ 68,031 67,933 55,494 ---------- ---------- ---------- Total.................................. $6,937,024 $6,910,045 $6,277,521 ---------- ---------- ---------- ---------- ---------- ---------- Sales (millions of kilowatthours): Residential............................... 22,310 23,303 21,376 Small commercial and industrial........... 25,131 25,313 24,320 Large commercial and industrial........... 23,896 23,777 23,450 Public authorities........................ 7,336 7,158 6,885 Electric railroads........................ 424 390 397 Sales for resale.......................... 12,178 11,412 8,743 ---------- ---------- ---------- Total.................................. 91,275 91,353 85,171 ---------- ---------- ---------- ---------- ---------- ---------- Sources of Electric Energy (millions of kilowatthours): Generation-- Nuclear.................................. 62,610 70,261 63,795 Fossil................................... 30,315 26,231 26,361 Fast-start peaking units................. 123 116 87 ---------- ---------- ---------- Net generation......................... 93,048 96,608 90,243 Purchased power........................... 6,129 2,475 2,071 Company use and losses.................... (7,902) (7,730) (7,143) ---------- ---------- ---------- Total.................................. 91,275 91,353 85,171 ---------- ---------- ---------- ---------- ---------- ---------- Cost of Fuel Consumed (per million Btu): Nuclear................................... $0.53 $0.52 $0.53 Coal...................................... $2.41 $2.43 $2.31 Oil....................................... $3.41 $3.06 $2.89 Natural gas............................... $2.75 $1.85 $2.27 Average all fuels......................... $1.17 $1.05 $1.08 Peak Load (kilowatts)...................... 18,916,000 19,212,000 17,928,000 Number of Customers (at end of year): Residential............................... 3,102,101 3,079,381 3,047,354 Small commercial and industrial........... 289,803 288,848 286,793 Large commercial and industrial........... 1,550 1,539 1,528 Public authorities........................ 12,142 12,039 12,059 Electric railroads and resale............. 46 26 20 ---------- ---------- ---------- Total.................................. 3,405,642 3,381,833 3,347,754 ---------- ---------- ---------- ---------- ---------- ---------- Average Annual Revenue Per Residential Cus- tomer (excluding light bulb service)............ $819.52 $852.18 $748.10 Average Use Per Residential Customer (kilowatthours)........................... 7,213 7,598 7,056 Average Revenue Per Kilowatthour(2): Residential (excluding light bulb serv- ice)..................................... 11.36c 11.22c 10.60c Small commercial and industrial........... 8.41c 8.19c 7.88c Large commercial and industrial........... 6.05c 6.00c 5.89c - -------- (1) See "Rate Matters" above. (2) Average revenue per kilowatthour after reflecting provisions for revenue refunds and after reflecting revenue refunds and related interest credited to customers in 1994 was as follows: 1994 -------------------------------- AFTER DEDUCTIONS FOR -------------------------------- PROVISIONS FOR REVENUE REVENUE REFUNDS REFUNDS CREDITED --------------- ---------------- Residential 10.57c 8.22c Small commercial and industrial 7.86c 6.43c Large commercial and industrial 5.88c 4.76c 20 FORWARD LOOKING INFORMATION Certain portions of these Annual Reports contain forward looking statements with respect to the consequences of future events, including estimates of costs associated with certain actions and outcomes. Unforeseen events or conditions may require changes in the factors affecting such estimates and the projected results thereof. Consequently, actual results could differ materially from the estimates presented. See the last paragraph under the subheading "Construction Program" in "Item 1. Business" for additional information regarding certain caveats affecting forward looking statements. Forward looking information is contained in various sections of these Annual Reports, including, without limitation, (i) "Item 1. Business" under the subheading "Regulation--Nuclear," with respect to the estimated costs of decommissioning nuclear generating stations, (ii) "Item 1. Business" under the subheading "Construction Program," regarding ComEd's construction program budget, (iii) "Item 1. Business" under the subheadings "Construction Program" and "Regulation--Nuclear," regarding the time frame for steam generator replacement at ComEd's Zion nuclear generating station, (iv) "Item 1. Business" under the subheading "Regulation--Environmental," regarding cleanup costs associated with MGP and other remediation sites and (v) "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations" and "Item 8. Financial Statements and Supplementary Data" which, in the case of Unicom, incorporate portions of Unicom's January 31, 1997 Form 8-K Report which contain forward looking information as described therein, in the case of ComEd, incorporate portions of ComEd's January 31, 1997 Form 8-K Report which contain forward looking information as described therein. ITEM 2. PROPERTIES. ComEd's electric properties are located in Illinois and the Indiana Company's electric facilities are located in Indiana. In management's opinion, ComEd and the Indiana Company's operating properties are adequately maintained and are substantially in good operating condition. The electric generating, transmission, distribution and general facilities of ComEd and the Indiana Company represent approximately 66%, 10%, 21% and 3%, respectively, of their gross investment in electric plant and equipment in service. The electric generating stations, substations and a portion of the transmission rights of way of ComEd and the Indiana Company are owned in fee. A significant portion of the electric transmission and distribution facilities is located over or under highways, streets, other public places or property owned by others, for which permits, grants, easements or licenses (deemed satisfactory by ComEd, but without examination of underlying land titles) have been obtained. The principal plants and properties of ComEd are subject to the lien of ComEd's Mortgage dated July 1, 1923, as amended and supplemented, under which ComEd's first mortgage bonds are issued. The net generating capability of ComEd and the Indiana Company is derived from the following electric generating facilities: NET GENERATING CAPABILITY STATION LOCATION (KILOWATTS) ------- ---------------- -------------- Nuclear-- Zion Zion 2,080,000 Dresden Near Morris 1,588,000 Quad Cities Near Cordova 1,183,000(1) LaSalle County Near Seneca 2,156,000 Byron Near Byron 2,240,000 Braidwood Near Braidwood 2,240,000 Fossil-- Collins Near Morris 2,698,000 Powerton Near Pekin 1,400,000 Joliet 6 Near Joliet 302,000 Joliet 7 & 8 Near Joliet 1,025,000 Kincaid Near Taylorville 1,108,000 Will County Near Lockport 1,092,000 Waukegan Waukegan 725,000 Crawford Chicago 542,000 State Line Hammond, Indiana 490,000 Fisk Chicago 321,000 Fast-Start Peaking Units(2) Various 1,321,000 ---------- Net non-summer generating capability 22,511,000 Deduct--Summer limitations 557,000 ---------- Net summer generating capability 21,954,000 ========== - -------- (1) Excludes the 25% undivided interest of MidAmerican Energy Company in the Quad Cities station. (2) Generating units normally designed for use only during the maximum load period of a designated time interval. Such units are capable of starting and coming on-line quickly. 21 Major electric transmission lines owned and in service are as follows: VOLTAGE CIRCUIT (VOLTS) MILES ------- ------- 765,000........................................................... 90 345,000........................................................... 2,533 138,000........................................................... 2,725 ComEd's electric distribution system includes 38,040 pole line miles of overhead lines and 32,850 cable miles of underground lines. A total of approximately 1,320,350 poles are included in ComEd's distribution system, of which about 590,630 poles are owned jointly with telephone companies. ITEM 3. LEGAL PROCEEDINGS. During 1989 and 1991, actions were brought in federal and state courts in Colorado against ComEd and Cotter seeking unspecified damages and injunctive relief based on allegations that Cotter has permitted radioactive and other hazardous material to be released from its mill into areas owned or occupied by the plaintiffs resulting in property damage and potential adverse health effects. In February 1994, a federal jury returned nominal dollar verdicts on eight bellwether plaintiffs' claims in these cases, which verdicts were upheld on appeal. The remaining claims in the 1989 actions are the subject of a settlement agreement entered into by counsel for the plaintiffs and Cotter. If the settlement agreement is implemented, the 1989 actions will be dismissed. Although the remaining cases will necessarily involve the resolution of numerous contested issues of fact and law, Unicom and ComEd's determination is that these actions will not have a material impact on their financial position or results of operations. In July 1995, the Chicago area experienced several consecutive days of unusually high temperatures coupled with high humidity. Between July 12 and 14, 1995, ComEd experienced record demand for electricity. On July 14, 1995, a fire in a substation caused a power outage to approximately 40,000 customers. Other equipment failures in the same general area caused certain of these customers to be without power for up to 48 hours. In the wake of these power outages, three class action lawsuits were filed against ComEd seeking recovery of damages for property losses allegedly suffered. One suit seeks at least $10 million in damages; the others seek unspecified damages. One individual suit was also filed seeking damages less than $100,000 for property losses. ComEd has appeals pending in applicable counties in connection with property tax assessments for its Byron, Braidwood and LaSalle nuclear generating stations. These proceedings seek refunds and reduced valuations resulting in lower property taxes for the challenged and subsequent years. In January 1996, the PTAB rendered a decision substantially adopting ComEd's positions with respect to the Byron nuclear station. Thereafter, the Ogle County Board of Review issued a revised assessment. ComEd has received tax bills for 1995 taxes, payable in 1996, based on the revised assessment. However, certain Ogle County taxing bodies have filed legal actions challenging both the PTAB decision and the Board of Review assessment. ComEd has also challenged the assessment, on the grounds that it does not fully implement the PTAB decision. ComEd continues to challenge tax assessments with respect to other properties. The reduction in ComEd's provision for real estate taxes in 1995 and 1996 reflects the bills received. On November 1, 1996, the City of Chicago, Illinois filed a demand for the appointment of an Adjustment Board before the American Arbitration Association under the provisions of its franchise agreement with ComEd. In its demand, the City alleges, among other items, that ComEd has failed to carry out certain commitments related to system reliability under the franchise agreement which requires ComEd to budget $1 billion in expenditures for transmission and distribution enhancements within or for the benefit of Chicago over a ten year period that commenced in January 1992. ComEd is disputing the City's allegations. During the five years since January 1992, ComEd has expended approximately $426 million to enhance electric service reliability and energy supply for the City, and it continues to review, and budget appropriately, for needed projects. 22 See "Item 1. Business," subcaptions "Rate Matters," "Fuel Supply--Fuel Adjustment Clause" and "Regulation" above for information concerning other legal proceedings. ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS. None. PART II ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS. ComEd's securities and other securities guaranteed by ComEd are currently rated by three principal securities rating agencies as follows: STANDARD DUFF & MOODY'S & POOR'S PHELPS ------- -------- ------ First mortgage and secured pollution control bonds.. Baa2 BBB BBB Publicly-held debentures and unsecured pollution control obligations........................................ Baa3 BBB- BBB- Convertible preferred stock......................... baa3 BBB- BBB- Preference stock.................................... baa3 BBB- BBB- ComEd-obligated mandatorily redeemable preferred se- curities of the Trust....................................... baa3 BBB- BBB- Commercial paper.................................... P-2 A-2 D-2 In January 1997, Moody's changed the rating outlook on ComEd's securities from "stable" to "negative" and Duff & Phelps added ComEd's securities to "Rating Watch-Down." As of March 1997, Standard & Poor's rating outlook on ComEd remained "stable." The above ratings reflect only the views of such rating agencies and each rating should be evaluated independently of any other rating. Generally, rating agencies base their ratings on information furnished to them by the issuing company and on investigations, studies and assumptions by the rating agencies. There is no assurance that any particular rating will continue for any given period of time or that it will not be changed or withdrawn entirely if in the judgment of the rating agency circumstances so warrant. Such ratings are not a recommendation to buy, sell or hold securities. The following is a brief summary of the meanings of the above ratings and the relative rank of the above ratings within each rating agency's classification system. Moody's top four long-term debt ratings (Aaa, Aa, A and Baa) are generally considered "investment grade." Obligations rated Baa are considered as medium grade obligations, neither highly protected nor poorly secured. Such obligations lack outstanding investment characteristics and in fact have speculative characteristics. A numerical modifier in Moody's system shows relative standing within the principal rating category, with 1 indicating the high end of that category, 2 the mid-range and 3 the low end. Standard & Poor's top four bond ratings (AAA, AA, A and BBB) are generally considered to describe obligations in which investment characteristics predominate. Obligations rated BBB are regarded as having an adequate capacity to pay interest and repay principal. Such obligations normally exhibit adequate protection parameters, but adverse economic conditions or changing circumstances are more likely to lead to weakened capacity to pay. A plus or minus sign in Standard & Poor's system shows relative standing within the major rating categories. Both Moody's and Standard & Poor's preferred stock ratings represent relative security of dividends. Moody's top four preferred stock ratings (aaa, aa, a and baa) are generally considered "investment grade." Moody's baa rating describes a medium grade preferred stock, neither highly 23 protected nor poorly secured. Standard & Poor's top four preferred stock ratings (AAA, AA, A and BBB) are generally considered "investment grade." Standard & Poor's BBB rating applies to medium grade preferred stock which is below A ("sound") and above BB ("lower grade"). Duff & Phelps' credit rating scale has 17 alphabetical categories, of which ratings AAA through BBB (with AAA being the highest rating) represent investment grade securities. Ratings of BBB+, BBB and BBB- represent the lowest category of "investment grade" rating. This category describes securities with below average protection factors but which are considered sufficient for institutional investment. Considerable variability in risk occurs during economic cycles. Ratings of BB+, BB and BB- describe below investment grade securities which are deemed likely to meet obligations when due. Present or prospective financial protection factors of these securities fluctuate according to industry conditions or company fortunes. Moody's P-2 rating of commercial paper is the second highest of three possible ratings; P-2 describes a strong capacity for repayment of short-term promissory obligations. Standard & Poor's rates commercial paper in four basic categories with A-2 being the second highest category. Duff & Phelps rates commercial paper in three basic categories, with D-2 indicating the middle category. Further explanations of the significance of ratings may be obtained from the rating agencies. Additional information required by Item 5 is incorporated herein by reference to the "Price Range and Cash Dividends Paid Per Share of Common Stock" on page 3 of Unicom's January 31, 1997 Form 8-K Report. ITEM 6. SELECTED FINANCIAL DATA. ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS. ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA. The information required by Items 6, 7 and 8 is incorporated herein by reference to the "Summary of Selected Consolidated Financial Data" on page 3, "Management's Discussion and Analysis of Financial Condition and Results of Operations" on pages 4 through 16, and the audited consolidated financial statements and notes thereto on pages 17 through 45 of Unicom's January 31, 1997 Form 8-K Report. Reference is also made to "Item 1. Business," subcaptions "Construction Program," "Regulation" and "Changes in the Electric Utility Industry" for additional information. ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE. None. PART III ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT. The information required by Item 10 relating to directors and nominees for election as directors at Unicom's Annual Meeting of shareholders to be held on May 29, 1997 is incorporated herein by reference to the information under the heading "Security Ownership of Certain Beneficial Owners and Management" in Unicom's definitive Proxy Statement ("1997 Proxy Statement") to be filed with the SEC prior to April 30, 1997 pursuant to Regulation 14A under the Securities Exchange Act of 1934. The information required by Item 10 relating to executive officers is set forth in Part I of Unicom's 24 Annual Report on Form 10-K under "Item 1. Business," subcaption "Executive Officers of the Registrant" and under the heading "Security Ownership of Certain Beneficial Owners and Management" of Unicom's 1997 Proxy Statement, which are incorporated herein by reference. ITEM 11. EXECUTIVE COMPENSATION. The information required by Item 11 is incorporated herein by reference to the information labelled "Compensation of Directors" and the paragraphs under the heading "Executive Compensation" (other than the paragraphs under the heading "Corporate Governance and Compensation Committee Report on Executive Compensation") of Unicom's 1997 Proxy Statement. ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT. The information required by Item 12 is incorporated herein by reference to the stock ownership information under the heading "Security Ownership of Certain Beneficial Owners and Management" in Unicom's 1997 Proxy Statement. ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS. None. 25 ANNUAL REPORT ON FORM 10-K FOR COMMONWEALTH EDISON COMPANY PART I ITEM 1. BUSINESS. See Unicom's "Item 1. Business" (other than the paragraphs under the headings "General--Unregulated Operations," "Construction Program--Unregulated Operations" and "Executive Officers of the Registrant"), which is incorporated herein by this reference. EXECUTIVE OFFICERS OF THE REGISTRANT The effective year of election of the executive officers to their present positions and the prior positions they have held with ComEd or other companies since January 1, 1992 are described below. NAME AND AGE POSITION ------------ -------------------------------------------------------------- James J. Chairman and Chief Executive Officer of ComEd since 1980 and O'Connor, Chairman and Chief Executive Officer of Unicom since 1994. 60 Leo F. Vice Chairman of ComEd since 1995; Vice Chairman of Unicom Mullin, 54 since 1995; President and Chief Operating Officer of First Chicago Corporation, 1993 to 1995 and Chairman, President and Chief Executive Officer of American National Bank and Trust Company of Chicago, 1992 to 1993. Samuel K. President of ComEd since 1993; President of Unicom since 1994; Skinner, 58 General Chairman of Republican National Committee, 1992 to 1993 and Chief of Staff to President of the United States, 1992. Thomas J. Executive Vice President of ComEd since January 1997; Senior Maiman, 58 Vice President of ComEd, 1992 to January 1997 and Vice Presi- dent of ComEd, 1992. Robert J. Executive Vice President of ComEd since January 1997; Senior Manning, 54 Vice President of ComEd, 1992 to January 1997 and Vice Presi- dent of ComEd, 1992. Donald A. Senior Vice President of ComEd since 1992; Vice President of Petkus, 55 ComEd, 1992; Senior Vice President of Unicom since 1995 and President of Unicom Thermal since 1995. Cordell Senior Vice President of ComEd, 1987 to 1997 (Announced re- Reed, 59 tirement in January 1997). Michael J. Senior Vice President of ComEd since 1993 and Vice President Wallace, 49 of ComEd, 1992 to 1993. John C. Vice President of ComEd since 1989 and Vice President of Bukovski, Unicom since 1994. 54 Frank M. Vice President of ComEd since January 1997; Governmental Af- Clark, 51 fairs Vice President 1996 to January 1997 and Governmental Affairs Manager, 1992 to 1996. John T. Vice President of ComEd since 1996; Manager of Corporate Rela- Costello, tions of ComEd, 1995 to 1996; Manager of Public Affairs of 48 ComEd, 1992 to 1995 and Vice President of Unicom since 1996. Louis O. Vice President of ComEd since 1992 and Assistant Vice Presi- DelGeorge, dent of ComEd, 1992. 49 William H. Vice President of ComEd since 1992 and Manager of Marketing Downey, 52 and Customer Services of ComEd, 1992. William H. Vice President of ComEd since 1994; Manager of Quality of Dunbar, ComEd, 1992 to 1994 and Division Vice President of ComEd-- Jr., 56 Chicago North, 1992. 26 NAME AND AGE POSITION ------------ -------------------------------------------------------------- J. Stanley Vice President of ComEd since 1987. Graves, 60 Harold W. Vice President of ComEd since 1995; Executive Vice President Keiser, 53 and Chief Operating Officer of Entergy Operations, Inc., 1993 to 1995 and Senior Vice President of Pennsylvania Power & Light Company, 1992 to 1993. Emerson W. Vice President of ComEd since 1992 and Fossil Engineering and Lacey, 55 Construction Manager of ComEd, 1992. Thomas J. Vice President of ComEd since 1996; Vice President of Unicom McCaffrey, since 1996; Vice President of Mercer Management Consulting, 52 1995 to 1996 and Corporate Senior Vice President of First Chicago Corporation, 1992 to 1994. Paul D. Vice President of ComEd since 1992 and Manager of Transmission McCoy, 46 and Distribution Operations of ComEd, 1992. Robert A. Vice President of ComEd 1994 to 1996 (Resigned January 1997) Paul, 53 and Corporate Purchasing Manager of Digital Equipment Corpo- ration, 1992 to 1994. J. Stephen Vice President of ComEd since 1994 and Senior Vice President Perry, 58 of Illinois Power Company, 1992 to 1994. James A. Vice President of ComEd since 1993 and General Manager of Fuel Small, 53 Services of Georgia Power Company, 1992 to 1993. Pamela B. Vice President and General Counsel of ComEd since 1993 and Strobel, 44 Partner of Sidley & Austin, 1992 to 1993. Roger F. Comptroller of ComEd since 1989 and Comptroller of Unicom Kovack, 48 since 1994. Dennis F. Treasurer of ComEd since 1989 and Treasurer of Unicom since O'Brien, 51 1994. David A. Secretary of ComEd since 1989 and Secretary of Unicom since Scholz, 55 1994. The present term of office of each of the above executive officers, except for Mr. Reed and Mr. Paul, extends to the first meeting of ComEd's Board of Directors after the next annual election of Directors scheduled to be held on May 29, 1997. There are no family relationships among the executive officers, directors and nominees for director of ComEd. ITEM 2. PROPERTIES. See Unicom's "Item 2. Properties," which is incorporated herein by this reference. ITEM 3. LEGAL PROCEEDINGS. See Unicom's "Item 3. Legal Proceedings," which is incorporated herein by this reference. ITEM 4. SUBMISSION OF MATTERS TO A VOTE BY SECURITY HOLDERS. None. 27 PART II ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS. See Unicom's "Item 5. Market for Registrant's Common Equity and Related Stockholder Matters" (other than the last paragraph thereof), which is incorporated herein by reference. Additional information required by Item 5 is incorporated herein by reference to the "Cash Dividends Paid Per Share of Common Stock" on page 3 of ComEd's January 31, 1997 Form 8-K Report. ITEM 6. SELECTED FINANCIAL DATA. ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS. ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA. The information required by Items 6, 7 and 8 is incorporated herein by reference to the "Summary of Selected Consolidated Financial Data" on page 3, "Management's Discussion and Analysis of Financial Condition and Results of Operations" on pages 4 through 15, and the audited consolidated financial statements and notes thereto on pages 16 through 42 of ComEd's January 31, 1997 Form 8-K Report. Reference is also made to "Item 1. Business," subcaptions "Changes in the Electric Utility Industry," "Construction Program," and "Regulation" for additional information. ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE. None. PART III ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT. The information required by Item 10 relating to directors and nominees for election as directors at ComEd's Annual Meeting of shareholders to be held on May 29, 1997 is incorporated herein by reference to information under the heading "Security Ownership of Certain Beneficial Owners and Management" in ComEd's definitive Information Statement ("1997 Information Statement") to be filed with the SEC prior to April 30, 1997 pursuant to Regulation 14C under the Securities Exchange Act of 1934. The information required by Item 10 relating to executive officers is set forth in Part I of ComEd's Annual Report on Form 10-K under "Item 1. Business," subcaption "Executive Officers of the Registrant" and under the heading "Security Ownership of Certain Beneficial Owners and Management" in ComEd's 1997 Information Statement, which are incorporated herein by reference. ITEM 11. EXECUTIVE COMPENSATION. The information required by Item 11 is incorporated herein by reference to the paragraph labelled "Compensation of Directors" and the paragraphs under the heading "Executive Compensation" (other than the paragraphs under the heading "Corporate Governance and Compensation Committee Report on Executive Compensation") of ComEd's 1997 Information Statement. ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT. The information required by Item 12 is incorporated herein by reference to the stock ownership information under the heading "Security Ownership of Certain Beneficial Owners and Management" of ComEd's 1997 Information Statement. ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS. None. 28 ANNUAL REPORTS ON FORM 10-K FOR UNICOM CORPORATION AND COMMONWEALTH EDISON COMPANY PART IV ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K. (A)FINANCIAL STATEMENTS, FINANCIAL STATEMENT SCHEDULES AND EXHIBITS: PAGE OF JANUARY 31, 1997 FORM 8- K REPORT ------------ UNICOM COMED ------ ----- The following financial statements are incorporated into the Unicom Annual Report on Form 10-K by reference to the indi- cated page or pages of Unicom's January 31, 1997 Form 8-K Report, and into the ComEd Annual Report on Form 10-K by reference to the indicated page or pages of ComEd's January 31, 1997 Form 8-K Report: Report of Independent Public Accountants.................... 17 16 Statements of Consolidated Income for the years 1996, 1995 and 1994................................................... 18 17 Consolidated Balance Sheets--December 31, 1996 and 1995..... 19-20 18-19 Statements of Consolidated Capitalization--December 31, 1996 and 1995................................................... 21 20 Statements of Consolidated Retained Earnings for the years 1996, 1995 and 1994........................................ 22 21 Statements of Consolidated Cash Flows for the years 1996, 1995 and 1994.............................................. 23 22 Notes to Financial Statements............................... 24-45 23-42 ANNUAL REPORT ON PAGE OF FORM 10-K THIS ------------ DOCUMENT UNICOM COMED -------- ------ ----- The following supplemental schedules are included in the indicated Annual Report on Form 10-K: Report of Independent Public Accountants on Supplemental Schedule.............................. 37 x Report of Independent Public Accountants on Supplemental Schedule.............................. 38 x Schedule II--Valuation and Qualifying Accounts for each of the three years in the period ended December 31, 1996........................ 39 x x The following schedules are omitted as not applicable or not required under rules of Regulation S-X: I, III, IV and V. 29 The individual financial statements and schedules of ComEd's nonconsolidated wholly-owned subsidiaries have been omitted from Unicom's and ComEd's Annual Report on Form 10-K because the investments are not material in relation to ComEd's financial position or results of operations. As of December 31, 1996, the assets of the nonconsolidated subsidiaries in the aggregate approximated 1% of ComEd's consolidated assets. The 1996 revenues of the nonconsolidated subsidiaries in the aggregate were less than 1% of ComEd's consolidated annual revenues. The following exhibits are filed with the indicated Annual Report on Form 10-K or incorporated therein by reference. Documents indicated by an asterisk (*) are incorporated by reference to the File No. indicated. Documents indicated by a plus sign (+) identify management contracts or compensatory plans or arrangements. EXHIBIT NUMBER DESCRIPTION OF DOCUMENT UNICOM COMED ------- ------------------------------------------------- ------ ----- *(3)-1 Articles of Incorporation of Unicom effective January 28, 1994. (File No. 1-11375, Form 10-K for the year ended December 31, 1994, Exhibit (3)-1). x *(3)-2 Restated Articles of Incorporation of ComEd ef- fective February 20, 1985, including Statements of Resolution Establishing Series, relating to the establishment of three new series of ComEd preference stock known as the "$9.00 Cumulative Preference Stock," the "$6.875 Cumulative Pref- erence Stock" and the "$2.425 Cumulative Prefer- ence Stock." (File No. 1-1839, Form 10-K for the year ended December 31, 1994, Exhibit (3)-2). x (3)-3 By-Laws of Unicom Corporation, effective January 28, 1994 as amended through January 29, 1997. x (3)-4 By-Laws of Commonwealth Edison Company, effective September 2, 1988 as amended through January 29, 1997. x *(4)-1 Mortgage of ComEd to Illinois Merchants Trust Company, Trustee (Harris Trust and Savings Bank, as current successor Trustee), dated July 1, 1923, Supplemental Indenture thereto dated Au- gust 1, 1944, and amendments and supplements thereto dated, respectively, August 1, 1946, April 1, 1953, April 1, 1966, November 1, 1966, December 1, 1966, March 31, 1967, April 1, 1967, February 1, 1968, July 1, 1968, October 1, 1968, February 28, 1969, May 29, 1970, January 1, 1971, June 1, 1971, May 31, 1972, June 1, 1973, June 15, 1973, October 15, 1973, May 31, 1974, July 1, 1974, June 13, 1975, May 28, 1976, Janu- ary 15, 1977 and June 3, 1977 (File No. 2-60201, Form S-7, Exhibit 2-1). x *(4)-2 Supplemental Indentures to Mortgage dated July 1, 1923 dated, respectively, May 17, 1978, August 31, 1978, June 18, 1979, June 20, 1980, April 16, 1981, April 30, 1982, April 15, 1983, April 13, 1984 and April 15, 1985 (File No. 2-99665, Form S-3, Exhibit (4)-3). x *(4)-3 Supplemental Indentures to Mortgage dated July 1, 1923 dated, respectively, April 15, 1986 and May 1, 1986 (File No. 33-6879, Form S-3, Exhibit (4)-9). x 30 EXHIBIT NUMBER DESCRIPTION OF DOCUMENT UNICOM COMED ------- ------------------------------------------------- ------ ----- *(4)-4 Supplemental Indenture to Mortgage dated July 1, 1923 dated January 12, 1987 (File No. 33-13193, Form S-3, Exhibit (4)-6). x *(4)-5 Supplemental Indentures to Mortgage dated July 1, 1923 dated, respectively, February 15, 1990 and June 15, 1990 (File No. 33-38232, Form S-3, Ex- hibits (4)-11 and (4)-12). x *(4)-6 Supplemental Indentures to Mortgage dated July 1, 1923 dated, respectively, June 1, 1991, October 1, 1991 and October 15, 1991 (File No. 33-44018, Form S-3, Exhibits (4)-12, (4)-13 and (4)-14). x *(4)-7 Supplemental Indenture to Mortgage dated July 1, 1923 dated February 1, 1992 (File No. 1-1839, Form 10-K for the year ended December 31, 1991, Exhibit (4)-18). x *(4)-8 Supplemental Indenture to Mortgage dated July 1, 1923 dated May 15, 1992 (File No. 33-48542, Form S-3, Exhibit (4)-14). x *(4)-9 Supplemental Indentures to Mortgage dated July 1, 1923 dated, respectively, July 15, 1992, Septem- ber 15, 1992 and October 1, 1992 (File No. 33- 53766, Form S-3, Exhibits (4)-13, (4)-14 and (4)-15). x *(4)-10 Supplemental Indentures to Mortgage dated July 1, 1923 dated, respectively, February 1, 1993 and March 1, 1993 (File No. 1-1839, Form 10-K for the year ended December 31, 1992, Exhibits (4)- 14 and (4)-15). x *(4)-11 Supplemental Indentures to Mortgage dated July 1, 1923 dated, respectively, April 1, 1993 and April 15, 1993 (File No. 33-64028, Form S-3, Ex- hibits (4)-12 and (4)-13). x *(4)-12 Supplemental Indentures to Mortgage dated July 1, 1923 dated, respectively, June 15, 1993 and July 1, 1993 (File No. 1-1839, Form 8-K dated May 21, 1993, Exhibits (4)-1 and (4)-2). x *(4)-13 Supplemental Indenture to Mortgage dated July 1, 1923 dated July 15, 1993 (File No. 1-1839, Form 10-Q for the quarter ended June 30, 1993, Ex- hibit (4)-1). x *(4)-14 Supplemental Indenture to Mortgage dated July 1, 1923 dated January 15, 1994 (File No. 1-1839, Form 10-K for the year ended December 31, 1993, Exhibit (4)-15). x *(4)-15 Supplemental Indenture to Mortgage dated July 1, 1923 dated December 1, 1994 (File No. 1-1839, Form 10-K for the year ended December 31, 1994, Exhibit (4)-16). x (4)-16 Supplemental Indenture to Mortgage dated July 1, 1923 dated June 1, 1996. x 31 EXHIBIT NUMBER DESCRIPTION OF DOCUMENT UNICOM COMED ------- ------------------------------------------------- ------ ----- *(4)-17 Instrument of Resignation, Appointment and Ac- ceptance dated January 31, 1996, under the pro- visions of the Mortgage dated July 1, 1923, and Indentures Supplemental thereto (File No. 1- 1839, Form 10-K for the year ended December 31, 1995, Exhibit (4)-28). x *(4)-18 Instrument dated as of January 31, 1996, for trustee under the Mortgage dated July 1, 1923 and Indentures Supplemental thereto (File No. 1- 1839, Form 10-K for the year ended December 31, 1995, Exhibit (4)-29). x *(4)-19 Indentures of ComEd to The First National Bank of Chicago, Trustee (Amalgamated Bank of Chicago, as current successor Trustee), dated April 1, 1949, October 1, 1949, October 1, 1950, October 1, 1954, January 1, 1958, January 1, 1959 and December 1, 1961 (File No. 1-1839, Form 10-K for the year ended December 31, 1982, Exhibit (4)- 20). x *(4)-20 Indenture of ComEd dated February 15, 1973 to The First National Bank of Chicago, Trustee (LaSalle National Bank, successor Trustee), and Supple- mental Indenture thereto dated July 13, 1973 (File No. 2-66100, Form S-16, Exhibit (b)-2). x *(4)-21 Indenture dated as of September 1, 1987 between ComEd and Citibank, N.A., Trustee relating to Notes (File No. 33-20619, Form S-3, Exhibit (4)- 13). x *(4)-22 Supplemental Indenture to Indenture dated Septem- ber 1, 1987 dated May 18, 1988 (File No. 33- 23036, Form S-3, Exhibit (4)-14). x *(4)-23 Supplemental Indenture to Indenture dated Septem- ber 1, 1987 dated July 14, 1989 (File No. 33- 32929, Form S-3, Exhibit (4)-16). x *(4)-24 Supplemental Indenture to Indenture dated Septem- ber 1, 1987 dated April 1, 1991 (File No. 33- 44018, Form S-3, Exhibit (4)-21). x *(4)-25 Supplemental Indenture to Indenture dated Septem- ber 1, 1987 dated April 15, 1992 (File No. 33- 48542, Form S-3, Exhibit (4)-22). x *(4)-26 Supplemental Indenture to Indenture dated Septem- ber 1, 1987 dated July 15, 1992 (File No. 33- 53766, Form S-3, Exhibit (4)-24). x *(4)-27 Supplemental Indenture to Indenture dated Septem- ber 1, 1987 dated October 15, 1993 (File No. 1- 1839, Form 10-Q for the quarter ended September 30, 1993, Exhibit (4)-1). x 32 EXHIBIT NUMBER DESCRIPTION OF DOCUMENT UNICOM COMED ------- ------------------------------------------------- ------ ----- *(4)-28 Credit Agreement dated as of October 1, 1991, among Commonwealth Edison Company, as borrower, the Banks named therein and the other Lenders from time to time parties thereto, and Citibank, N.A. (File No. 1-1839, Form 10-K for the year ended December 31, 1991, Exhibit (4)-27). x *(4)-29 Credit Agreement dated as of October 1, 1991, among Commonwealth Edison Company, as borrower, the Banks named therein and the other Lenders from time to time parties thereto, and Citibank, N.A. (File No. 1-1839, Form 10-K for the year ended December 31, 1991, Exhibit (4)-28). x (4)-30 Letter Agreement dated as of September 30, 1996, among Commonwealth Edison Company and certain of the Banks party to the Credit Agreement dated as of October 1, 1991. x (4)-31 Amended and Restated Credit Agreement dated as of November 15, 1996, among Unicom Enterprises Inc., the Banks Named Therein and Citibank, N.A. x (4)-32 Amended and Restated Guaranty dated as of Novem- ber 15, 1996, by Unicom Corporation in favor of the Lenders and LC Banks parties to the afore- mentioned Credit Agreement with Unicom Enter- prises Inc. (included as Exhibit E in Exhibit (4)-31). x *(4)-33 Guaranty dated November 22, 1994, by Unicom Cor- poration in favor of Citibank, N.A. (File No. 1- 11375, Form 10-K for the year ended December 31, 1994, Exhibit (4)-37). x (4)-34 Indenture dated September 1, 1995 between ComEd and Wilmington Trust Company. x (4)-35 First Supplemental Indenture dated September 19, 1995 to Indenture dated September 1, 1995 x (4)-36 Second Supplemental Indenture dated January 24, 1997 to Indenture dated September 1, 1995. x *(10)-1 Nuclear Fuel Lease Agreement dated as of November 23, 1993, between CommEd Fuel Company, Inc., as Lessor, and Commonwealth Edison Company, as Les- see (File No. 1-1839, Form 10-K for the year ended December 31, 1993, Exhibit (10)-1). x +*(10)- Unicom Corporation Long-Term Incentive Plan (File 2 No. 1-1839, ComEd Proxy Statement dated March 26, 1993, Exhibit A). x +*(10)- Amendment to Unicom Corporation Long-Term Incen- 3 tive Plan, effective September 1, 1994 (File No. 33-56991, Form S-8, Exhibit (4)-4). x +*(10)- 1994 Long-Term Performance Unit Award for Execu- 4 tive and Group Level Employees Payable in 1997 under the 1993 Long-Term Incentive Plan (File No. 1-1839, Form 10-K/A-1 for the year ended De- cember 31, 1993, Exhibit (10)-5). x x 33 EXHIBIT NUMBER DESCRIPTION OF DOCUMENT UNICOM COMED ------- ------------------------------------------------- ------ ----- +*(10)- 1995 Long-Term Performance Unit Award for Execu- 5 tive and Group Level Employees Payable in 1998 under the Unicom Corporation Long-Term Incentive Plan, as amended (File No. 1-11375 and 1-1839, Form 10-K for the year ended December 31, 1995, Exhibit (10)-6). x x +*(10)- 1996 Long-Term Performance Unit Award for Execu- 6 tive and Group Level Employees Payable in 1999 under the Unicom Corporation Long-Term Incentive Plan (File Nos. 1-11375 and 1-1839, Form 10-K for the year ended December 31, 1995, Exhibit (10)-9). x x +*(10)-7 1996 Variable Compensation Award for Management Employees under the Unicom Corporation Long-Term Incentive Plan (File Nos. 1-11375 and 1-1839, Form 10-K for the year ended December 31, 1995, Exhibit (10)-10). x x +*(10)-8 1996 Award to Mr. O'Connor, Mr. Mullin and Mr. Skinner under the Unicom Corporation Long-Term Incentive Plan (File Nos. 1-11375 and 1-1839, Form 10-K for the year ended December 31, 1995, Exhibit (10)-11). x x + (10)-9 Unicom Corporation General Provisions Regarding 1996 Stock Option Awards Granted under the Unicom Corporation Long-Term Incentive Plan. x x + (10)- Unicom Corporation General Provisions Regarding 10 1996B Stock Option Awards Granted under the Unicom Corporation Long-Term Incentive Plan. x x + (10)- 1997 Long-Term Performance Unit Award for Execu- 11 tive and Group Level Employees Payable in 2000 under the Unicom Corporation Long-Term Incentive Plan. x x + (10)- 1997 Annual Incentive Award for Managment Employ- 12 ees under the Unicom Corporation Long-Term In- centive Plan. x x + (10)- 1997 Award to Mr. O'Connor, Mr. Mullin and Mr. 13 Skinner under the Unicom Corporation Long-Term Incentive Plan. x x +*(10)- Unicom Corporation Deferred Compensation Unit 14 Plan, as amended (File Nos. 1-11375 and 1-1839, Form 10-K for the year ended December 31, 1995, Exhibit (10)-12). x x +*(10)- Deferred Compensation Plan (included in Article 15 Five of Exhibit (3)-2 above). x +*(10)- Management Incentive Compensation Plan, effective 16 January 1, 1989 (File No. 1-1839, Form 10-K for the year ended December 31, 1988, Exhibit (10)- 4). x +*(10)- Amendments to Management Incentive Compensation 17 Plan, dated December 14, 1989 and March 21, 1990 (File No. 1-1839, Form 10-K for the year ended December 31, 1989, Exhibit (10)-5). x +*(10)- Amendment to Management Incentive Compensation 18 Plan, dated March 21, 1991 (File No. 1-1839, Form 10-K for the year ended December 31, 1991, Exhibit (10)-6). x 34 EXHIBIT NUMBER DESCRIPTION OF DOCUMENT UNICOM COMED ------- ------------------------------------------------- ------ ----- + (10)- Retirement Plan for Directors, effective Septem- 19 ber 1, 1994, as amended through March 12, 1997. x + (10)- Retirement Plan for Directors, effective January 20 1, 1987, as amended through March 12, 1997. x +*(10)- Unicom Corporation 1996 Directors' Fee Plan (File 21 No. 1-11375, Unicom Proxy Statement dated April 8, 1996, Appendix A). x x +*(10)- Executive Group Life Insurance Plan (File No. 1- 22 1839, Form 10-K for the year ended December 31, 1980, Exhibit (10)-3). x +*(10)- Amendment to the Executive Group Life Insurance 23 Plan (File No. 1-1839, Form 10-K for the year ended December 31, 1981, Exhibit (10)-4). x +*(10)- Amendment to the Executive Group Life Insurance 24 Plan dated December 12, 1986 (File No. 1-1839, Form 10-K for the year ended December 31, 1986, Exhibit (10)-6). x +*(10)- Amendment of Executive Group Life Insurance Plan 25 to implement program of "split dollar life in- surance" dated December 13, 1990 (File No. 1- 1839, Form 10-K for the year ended December 31, 1990, Exhibit (10)-10). x +*(10)- Commonwealth Edison Company Supplemental Manage- 26 ment Retirement Plan (File No. 1-1839, Form 10-K for the year ended December 31, 1985, Exhibit (10)-6). x +*(10)- Amendment of Executive Group Life Insurance Plan 27 to stabilize the death benefit applicable to participants dated July 22, 1992 (File No. 1- 1839, Form 10-K for the year ended December 31, 1992, Exhibit (10)-13). x +*(10)- Letter Agreement dated December 16, 1992 between 28 Com- monwealth Edison Company and Samuel K. Skinner (File No. 1-1839, Form 10-K for the year ended December 31, 1992, Exhibit (10)-14). x +*(10)- Amendment dated May 31, 1995 to Letter Agreement 29 dated December 16, 1992 between Commonwealth Ed- ison Company and Samuel K. Skinner (File No. 1-1839, Form 10-K for the year ended December 31, 1995, Exhibit (10)-27). x + (10)- Amendments dated December 11, 1996 and March 24, 30 1997 to Letter Agreement dated December 16, 1992 between Commonwealth Edison Company and Samuel K. Skinner. x +*(10)- Letter Agreement dated November 14, 1995 between 31 Commonwealth Edison Company and Leo F. Mullin (File No. 1-1839, Form 10-K for the year ended December 31, 1995, Exhibit (10)-28). x + (10)- Amendment dated March 24, 1997 to Letter Agree- 32 ment dated November 14, 1995 between Common- wealth Edison Company and Leo F. Mullin. x +*(10)- Commonwealth Edison Company Excess Benefit Sav- 33 ings Plan (File No. 1-1839, Form 10-Q for the quarter ended June 30, 1994, Exhibit (10)-2). x 35 EXHIBIT NUMBER DESCRIPTION OF DOCUMENT UNICOM COMED ------- ------------------------------------------------- ------ ----- +*(10)- Amendment No. 1 to Commonwealth Edison Company 34 Excess Benefit Savings Plan dated May 24, 1995 (File No. 1-1839, Form 10-K for the year ended December 31, 1995, Exhibit (10)-30). x +*(10)- Unicom Corporation Stock Bonus Deferral Plan 35 (File Nos. 1-11375 and 1-1839, Form 10-K for the year ended December 31, 1995, Exhibit (10)-31). x x (12) Statement re computation of ratios of earnings to fixed charges and ratios of earnings to fixed charges and preferred and preference stock divi- dend requirements for ComEd. x (21)-1 Subsidiaries of Unicom Corporation. x (21)-2 Subsidiaries of Commonwealth Edison Company. x (23)-1 Consent of experts for Unicom Corporation. x (23)-2 Consent of experts for Commonwealth Edison Compa- ny. x (24)-1 Powers of attorney of Directors whose names are signed to the Unicom Corporation Annual Report on Form 10-K pursuant to such powers. x (24)-2 Powers of attorney of Directors whose names are signed to the Commonwealth Edison Company Annual Report on Form 10-K pursuant to such powers. x (99)-1 Unicom Corporation's Current Report on Form 8-K dated January 31, 1997. x (99)-2 Commonwealth Edison Company's Current Report on Form 8-K dated January 31, 1997. x Pursuant to Item 601(b)(4)(iii) of Regulation S-K, Unicom and ComEd hereby agree to furnish to the SEC, upon request, any instrument defining the rights of holders of long-term debt of ComEd not filed as an exhibit herein. No such instrument authorizes securities in excess of 10% of the total assets of ComEd. (B) REPORTS ON FORM 8-K: None. 36 REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS ON SUPPLEMENTAL SCHEDULE To Unicom Corporation: We have audited, in accordance with generally accepted auditing standards, the consolidated financial statements of Unicom Corporation and subsidiary companies incorporated by reference in this Annual Report on Form 10-K, and have issued our report thereon dated January 31, 1997. Our audits were made for the purpose of forming an opinion on the basic financial statements taken as a whole. The schedule listed in Item 14.(a), is presented for purposes of complying with the Securities and Exchange Commission's rules and is not part of the basic financial statements. This schedule has been subjected to the auditing procedures applied in the audits of the basic financial statements and, in our opinion, fairly states in all material respects the financial data required to be set forth therein in relation to the basic financial statements taken as a whole. Arthur Andersen LLP Chicago, Illinois January 31, 1997 37 REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS ON SUPPLEMENTAL SCHEDULE To Commonwealth Edison Company: We have audited, in accordance with generally accepted auditing standards, the consolidated financial statements of Commonwealth Edison Company and subsidiary companies incorporated by reference in this Annual Report on Form 10-K, and have issued our report thereon dated January 31, 1997. Our audits were made for the purpose of forming an opinion on the basic financial statements taken as a whole. The schedule listed in Item 14.(a), is presented for purposes of complying with the Securities and Exchange Commission's rules and is not part of the basic financial statements. This schedule has been subjected to the auditing procedures applied in the audits of the basic financial statements and, in our opinion, fairly states in all material respects the financial data required to be set forth therein in relation to the basic financial statements taken as a whole. Arthur Andersen LLP Chicago, Illinois January 31, 1997 38 SCHEDULE II UNICOM CORPORATION AND SUBSIDIARY COMPANIES SCHEDULE II--VALUATION AND QUALIFYING ACCOUNTS (THOUSANDS OF DOLLARS) - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- COLUMN A COLUMN B COLUMN C COLUMN D COLUMN E - ---------------------------- --------- ------------------ ---------- -------- ADDITIONS ------------------ BALANCE CHARGED AT TO COSTS CHARGED BALANCE BEGINNING AND TO OTHER AT END DESCRIPTION OF YEAR EXPENSES ACCOUNTS DEDUCTIONS OF YEAR - ---------------------------- --------- -------- -------- ---------- -------- FOR THE YEAR ENDED DECEMBER 31, 1994 - ---------------------------- Reserve Deducted From Assets in Consolidated Balance Sheet: Provision for uncollectible accounts (a).............. $10,910 $ (190) $ -- $ -- $10,720 ======= ======= ====== ======== ======= Estimated Obsolete Materi- als....................... $13,066 $13,650 $ -- $(13,026)(b) $13,690 ======= ======= ====== ======== ======= Other Reserves: Estimated liabilities asso- ciated with remediation costs and former manufac- tured gas plant sites..... $29,522 $ 5,039 $ -- $ (2,039)(c) $32,522 ======= ======= ====== ======== ======= Accumulated provision for injuries and damages...... $56,734 $20,270 $7,802 $(29,494)(d) $55,312 ======= ======= ====== ======== ======= FOR THE YEAR ENDED DECEMBER 31, 1995 - ---------------------------- Reserve Deducted From Assets in Consolidated Balance Sheet: Provision for uncollectible accounts (a).............. $10,720 $ 1,108 $ -- $ -- $11,828 ======= ======= ====== ======== ======= Estimated Obsolete Materi- als....................... $13,690 $15,350 $ -- $(12,865)(b) $16,175 ======= ======= ====== ======== ======= Other Reserves: Estimated liabilities asso- ciated with remediation costs and former manufac- tured gas plant sites..... $32,522 $ 2,271 $ -- $ (2,271)(c) $32,522 ======= ======= ====== ======== ======= Accumulated provision for injuries and damages...... $55,312 $21,135 $4,671 $(23,142)(d) $57,976 ======= ======= ====== ======== ======= FOR THE YEAR ENDED DECEMBER 31, 1996 - ---------------------------- Reserve Deducted From Assets in Consolidated Balance Sheet: Provision for uncollectible accounts (a).............. $11,828 $ 1,065 $ -- $ -- $12,893 ======= ======= ====== ======== ======= Estimated Obsolete Materi- als....................... $16,175 $12,000 $ -- $(15,873)(b) $12,302 ======= ======= ====== ======== ======= Other Reserves: Estimated liabilities asso- ciated with remediation costs and former manufac- tured gas plant sites..... $32,522 $ 1,706 $ -- $ (1,706)(c) $32,522 ======= ======= ====== ======== ======= Accumulated provision for injuries and damages...... $57,976 $13,325 $3,280 $(20,609)(d) $53,972 ======= ======= ====== ======== ======= Notes: (a) Bad debt losses, net of recoveries, and provisions for uncollectible accounts were charged to operating expense and amounted to $25,287,000, $26,278,000 and $41,846,000 in 1994, 1995 and 1996, respectively. (b) Writeoff of obsolete materials. (c) Expenditures for site investigation and cleanup costs. (d) Payments of claims and related costs. - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- 39 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, IN THE CITY OF CHICAGO AND STATE OF ILLINOIS ON THE 28TH DAY OF MARCH 1997. UNICOM CORPORATION James J. O'Connor By_____________________________ James J. O'Connor, Chairman and Chief Executive 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 INDICATED ON THE 28TH DAY OF MARCH 1997. SIGNATURE - ---------------------------- TITLE --------------------- James J. O'Connor Chairman and Chief - ---------------------------- Executive Officer and James J. O'Connor Director (principal executive officer) John C. Bukovski - ---------------------------- Vice President (principal John C. Bukovski financial officer) Roger F. Kovack Comptroller (principal - ---------------------------- accounting officer) Roger F. Kovack Jean Allard* Director Edward A. Brennan* Director James W. Compton* Director Bruce DeMars* Director Sue L. Gin* Director Donald P. Jacobs Director Edgar D. Jannotta Director George E. Johnson* Director Edward A. Mason* Director Leo F. Mullin* Vice Chairman and Frank A. Olson Director Director Samuel K. Skinner* President and Director David A. Scholz *By____________________________ David A. Scholz, Attorney-in- fact [Signature page to Unicom Corporation Annual Report on Form 10-K] 40 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, IN THE CITY OF CHICAGO AND STATE OF ILLINOIS ON THE 28TH DAY OF MARCH 1997. COMMONWEALTH EDISON COMPANY James J. O'Connor By_____________________________ James J. O'Connor, Chairman and Chief Executive 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 INDICATED ON THE 28TH DAY OF MARCH 1997. SIGNATURE - ---------------------------- TITLE --------------------- James J. O'Connor Chairman and Chief - ---------------------------- Executive Officer and James J. O'Connor Director (principal executive officer) John C. Bukovski - ---------------------------- Vice President (principal John C. Bukovski financial officer) Roger F. Kovack Comptroller (principal - ---------------------------- accounting officer) Roger F. Kovack Jean Allard* Director Edward A. Brennan* Director James W. Compton* Director Bruce DeMars* Director Sue L. Gin* Director Donald P. Jacobs* Director Edgar D. Jannotta Director George E. Johnson* Director Edward A. Mason* Director Leo F. Mullin* Vice Chairman and Frank A. Olson Director Director Samuel K. Skinner* President and Director David A. Scholz *By____________________________ David A. Scholz, Attorney-in- fact [Signature page to Commonwealth Edison Company Annual Report on Form 10-K] 41 UNICOM CORPORATION COMMONWEALTH EDISON COMPANY FILE NO.'S 1-11375 AND 1-1839 EXHIBIT INDEX The following exhibits are filed with the indicated Annual Report on Form 10-K or incorporated therein by reference. Documents indicated by an asterisk (*) are incorporated by reference to the File No. indicated. Documents indicated by a plus sign (+) identify management contracts or compensatory plans or arrangements. EXHIBIT NUMBER DESCRIPTION OF DOCUMENT UNICOM COMED ------- ------------------------------------------------- ------ ----- *(3)-1 Articles of Incorporation of Unicom effective January 28, 1994. (File No. 1-11375, Form 10-K for the year ended December 31, 1994, Exhibit (3)-1). x *(3)-2 Restated Articles of Incorporation of ComEd ef- fective February 20, 1985, including Statements of Resolution Establishing Series, relating to the establishment of three new series of ComEd preference stock known as the "$9.00 Cumulative Preference Stock," the "$6.875 Cumulative Pref- erence Stock" and the "$2.425 Cumulative Prefer- ence Stock." (File No. 1-1839, Form 10-K for the year ended December 31, 1994, Exhibit (3)-2). x (3)-3 By-Laws of Unicom Corporation, effective January 28, 1994 as amended through January 29, 1997. x (3)-4 By-Laws of Commonwealth Edison Company, effective September 2, 1988 as amended through January 29, 1997. x *(4)-1 Mortgage of ComEd to Illinois Merchants Trust Company, Trustee (Harris Trust and Savings Bank, as current successor Trustee), dated July 1, 1923, Supplemental Indenture thereto dated Au- gust 1, 1944, and amendments and supplements thereto dated, respectively, August 1, 1946, April 1, 1953, April 1, 1966, November 1, 1966, December 1, 1966, March 31, 1967, April 1, 1967, February 1, 1968, July 1, 1968, October 1, 1968, February 28, 1969, May 29, 1970, January 1, 1971, June 1, 1971, May 31, 1972, June 1, 1973, June 15, 1973, October 15, 1973, May 31, 1974, July 1, 1974, June 13, 1975, May 28, 1976, Janu- ary 15, 1977 and June 3, 1977 (File No. 2-60201, Form S-7, Exhibit 2-1). x *(4)-2 Supplemental Indentures to Mortgage dated July 1, 1923 dated, respectively, May 17, 1978, August 31, 1978, June 18, 1979, June 20, 1980, April 16, 1981, April 30, 1982, April 15, 1983, April 13, 1984 and April 15, 1985 (File No. 2-99665, Form S-3, Exhibit (4)-3). x *(4)-3 Supplemental Indentures to Mortgage dated July 1, 1923 dated, respectively, April 15, 1986 and May 1, 1986 (File No. 33-6879, Form S-3, Exhibit (4)-9). x 1 EXHIBIT NUMBER DESCRIPTION OF DOCUMENT UNICOM COMED ------- ------------------------------------------------- ------ ----- *(4)-4 Supplemental Indenture to Mortgage dated July 1, 1923 dated January 12, 1987 (File No. 33-13193, Form S-3, Exhibit (4)-6). x *(4)-5 Supplemental Indentures to Mortgage dated July 1, 1923 dated, respectively, February 15, 1990 and June 15, 1990 (File No. 33-38232, Form S-3, Ex- hibits (4)-11 and (4)-12). x *(4)-6 Supplemental Indentures to Mortgage dated July 1, 1923 dated, respectively, June 1, 1991, October 1, 1991 and October 15, 1991 (File No. 33-44018, Form S-3, Exhibits (4)-12, (4)-13 and (4)-14). x *(4)-7 Supplemental Indenture to Mortgage dated July 1, 1923 dated February 1, 1992 (File No. 1-1839, Form 10-K for the year ended December 31, 1991, Exhibit (4)-18). x *(4)-8 Supplemental Indenture to Mortgage dated July 1, 1923 dated May 15, 1992 (File No. 33-48542, Form S-3, Exhibit (4)-14). x *(4)-9 Supplemental Indentures to Mortgage dated July 1, 1923 dated, respectively, July 15, 1992, Septem- ber 15, 1992 and October 1, 1992 (File No. 33- 53766, Form S-3, Exhibits (4)-13, (4)-14 and (4)-15). x *(4)-10 Supplemental Indentures to Mortgage dated July 1, 1923 dated, respectively, February 1, 1993 and March 1, 1993 (File No. 1-1839, Form 10-K for the year ended December 31, 1992, Exhibits (4)- 14 and (4)-15). x *(4)-11 Supplemental Indentures to Mortgage dated July 1, 1923 dated, respectively, April 1, 1993 and April 15, 1993 (File No. 33-64028, Form S-3, Ex- hibits (4)-12 and (4)-13). x *(4)-12 Supplemental Indentures to Mortgage dated July 1, 1923 dated, respectively, June 15, 1993 and July 1, 1993 (File No. 1-1839, Form 8-K dated May 21, 1993, Exhibits (4)-1 and (4)-2). x *(4)-13 Supplemental Indenture to Mortgage dated July 1, 1923 dated July 15, 1993 (File No. 1-1839, Form 10-Q for the quarter ended June 30, 1993, Ex- hibit (4)-1). x *(4)-14 Supplemental Indenture to Mortgage dated July 1, 1923 dated January 15, 1994 (File No. 1-1839, Form 10-K for the year ended December 31, 1993, Exhibit (4)-15). x *(4)-15 Supplemental Indenture to Mortgage dated July 1, 1923 dated December 1, 1994 (File No. 1-1839, Form 10-K for the year ended December 31, 1994, Exhibit (4)-16). x (4)-16 Supplemental Indenture to Mortgage dated July 1, 1923 dated June 1, 1996. x 2 EXHIBIT NUMBER DESCRIPTION OF DOCUMENT UNICOM COMED ------- ------------------------------------------------- ------ ----- *(4)-17 Instrument of Resignation, Appointment and Ac- ceptance dated January 31, 1996, under the pro- visions of the Mortgage dated July 1, 1923, and Indentures Supplemental thereto (File No. 1- 1839, Form 10-K for the year ended December 31, 1995, Exhibit (4)-28). x *(4)-18 Instrument dated as of January 31, 1996, for trustee under the Mortgage dated July 1, 1923 and Indentures Supplemental thereto (File No. 1- 1839, Form 10-K for the year ended December 31, 1995, Exhibit (4)-29). x *(4)-19 Indentures of ComEd to The First National Bank of Chicago, Trustee (Amalgamated Bank of Chicago, as current successor Trustee), dated April 1, 1949, October 1, 1949, October 1, 1950, October 1, 1954, January 1, 1958, January 1, 1959 and December 1, 1961 (File No. 1-1839, Form 10-K for the year ended December 31, 1982, Exhibit (4)- 20). x *(4)-20 Indenture of ComEd dated February 15, 1973 to The First National Bank of Chicago, Trustee (LaSalle National Bank, successor Trustee), and Supple- mental Indenture thereto dated July 13, 1973 (File No. 2-66100, Form S-16, Exhibit (b)-2). x *(4)-21 Indenture dated as of September 1, 1987 between ComEd and Citibank, N.A., Trustee relating to Notes (File No. 33-20619, Form S-3, Exhibit (4)- 13). x *(4)-22 Supplemental Indenture to Indenture dated Septem- ber 1, 1987 dated May 18, 1988 (File No. 33- 23036, Form S-3, Exhibit (4)-14). x *(4)-23 Supplemental Indenture to Indenture dated Septem- ber 1, 1987 dated July 14, 1989 (File No. 33- 32929, Form S-3, Exhibit (4)-16). x *(4)-24 Supplemental Indenture to Indenture dated Septem- ber 1, 1987 dated April 1, 1991 (File No. 33- 44018, Form S-3, Exhibit (4)-21). x *(4)-25 Supplemental Indenture to Indenture dated Septem- ber 1, 1987 dated April 15, 1992 (File No. 33- 48542, Form S-3, Exhibit (4)-22). x *(4)-26 Supplemental Indenture to Indenture dated Septem- ber 1, 1987 dated July 15, 1992 (File No. 33- 53766, Form S-3, Exhibit (4)-24). x *(4)-27 Supplemental Indenture to Indenture dated Septem- ber 1, 1987 dated October 15, 1993 (File No. 1- 1839, Form 10-Q for the quarter ended September 30, 1993, Exhibit (4)-1). x 3 EXHIBIT NUMBER DESCRIPTION OF DOCUMENT UNICOM COMED ------- ------------------------------------------------- ------ ----- *(4)-28 Credit Agreement dated as of October 1, 1991, among Commonwealth Edison Company, as borrower, the Banks named therein and the other Lenders from time to time parties thereto, and Citibank, N.A. (File No. 1-1839, Form 10-K for the year ended December 31, 1991, Exhibit (4)-27). x *(4)-29 Credit Agreement dated as of October 1, 1991, among Commonwealth Edison Company, as borrower, the Banks named therein and the other Lenders from time to time parties thereto, and Citibank, N.A. (File No. 1-1839, Form 10-K for the year ended December 31, 1991, Exhibit (4)-28). x (4)-30 Letter Agreement dated as of September 30, 1996, among Commonwealth Edison Company and certain of the Banks party to the Credit Agreement dated as of October 1, 1991. x (4)-31 Amended and Restated Credit Agreement dated as of November 15, 1996, among Unicom Enterprises Inc., the Banks Named Therein and Citibank, N.A. x (4)-32 Amended and Restated Guaranty dated as of Novem- ber 15, 1996, by Unicom Corporation in favor of the Lenders and LC Banks parties to the afore- mentioned Credit Agreement with Unicom Enter- prises Inc. (included as Exhibit E in Exhibit (4)-31). x *(4)-33 Guaranty dated November 22, 1994, by Unicom Cor- poration in favor of Citibank, N.A. (File No. 1- 11375, Form 10-K for the year ended December 31, 1994, Exhibit (4)-37). x (4)-34 Indenture dated September 1, 1995 between ComEd and Wilmington Trust Company. x (4)-35 First Supplemental Indenture dated September 19, 1995 to Identure dated September 1, 1995. x (4)-36 Second Supplemental Indenture dated January 24, 1997 to Indenture dated September 1, 1995. x *(10)-1 Nuclear Fuel Lease Agreement dated as of November 23, 1993, between ComEd Fuel Company, Inc., as Lessor, and Commonwealth Edison Company, as Les- see (File No. 1-1839, Form 10-K for the year ended December 31, 1993, Exhibit (10)-1). x +*(10)- Unicom Corporation Long-Term Incentive Plan (File 2 No. 1-1839, ComEd Proxy Statement dated March 26, 1993, Exhibit A). x +*(10)- Amendment to Unicom Corporation Long-Term Incen- 3 tive Plan, effective September 1, 1994 (File No. 33-56991, Form S-8, Exhibit (4)-4). x 4 EXHIBIT NUMBER DESCRIPTION OF DOCUMENT UNICOM COMED ------- ------------------------------------------------- ------ ----- +*(10)- 1994 Long-Term Performance Unit Award for Execu- 4 tive and Group Level Employees Payable in 1997 under the 1993 Long-Term Incentive Plan (File No. 1-1839, Form 10-K/A-1 for the year ended De- cember 31, 1993, Exhibit (10)-5). x x +*(10)- 1995 Long-Term Performance Unit Award for Execu- 5 tive and Group Level Employees Payable in 1998 under the Unicom Corporation Long-Term Incentive Plan, as amended (File No. 1-11375 and 1-1839, Form 10-K for the year ended December 31, 1995, Exhibit (10)-6). x x +*(10)- 1996 Long-Term Performance Unit Award for Execu- 6 tive and Group Level Employees Payable in 1999 under the Unicom Corporation Long-Term Incentive Plan (File Nos. 1-11375 and 1-1839, Form 10-K for the year ended December 31, 1995, Exhibit (10)-9). x x +*(10)-7 1996 Variable Compensation Award for Management Employees under the Unicom Corporation Long-Term Incentive Plan (File Nos. 1-11375 and 1-1839, Form 10-K for the year ended December 31, 1995, Exhibit (10)-10). x x +*(10)-8 1996 Award to Mr. O'Connor, Mr. Mullin and Mr. Skinner under the Unicom Corporation Long-Term Incentive Plan (File Nos. 1-11375 and 1-1839, Form 10-K for the year ended December 31, 1995, Exhibit (10)-11). x x + (10)-9 Unicom Corporation General Provisions Regarding 1996 Stock Option Awards Granted under the Unicom Corporation Long-Term Incentive Plan. x x + (10)- Unicom Corporation General Provisions Regarding 10 1996B Stock Option Awards Granted under the Unicom Corporation Long-Term Incentive Plan. x x + (10)- 1997 Long-Term Performance Unit Award for Execu- 11 tive and Group Level Employees Payable in 2000 under the Unicom Corporation Long-Term Incentive Plan. x x + (10)- 1997 Annual Incentive Award for Managment Employ- 12 ees under the Unicom Corporation Long-Term In- centive Plan. x x + (10)- 1997 Award to Mr. O'Connor, Mr. Mullin and Mr. 13 Skinner under the Unicom Corporation Long-Term Incentive Plan. x x +*(10)- Unicom Corporation Deferred Compensation Unit 14 Plan, as amended (File Nos. 1-11375 and 1-1839, Form 10-K for the year ended December 31, 1995, Exhibit (10)-12). x x +*(10)- Deferred Compensation Plan (included in Article 15 Five of Exhibit (3)-2 above). x +*(10)- Management Incentive Compensation Plan, effective 16 January 1, 1989 (File No. 1-1839, Form 10-K for the year ended December 31, 1988, Exhibit (10)- 4). x +*(10)- Amendments to Management Incentive Compensation 17 Plan, dated December 14, 1989 and March 21, 1990 (File No. 1-1839, Form 10-K for the year ended December 31, 1989, Exhibit (10)-5). x 5 EXHIBIT NUMBER DESCRIPTION OF DOCUMENT UNICOM COMED ------- ------------------------------------------------- ------ ----- +*(10)- Amendment to Management Incentive Compensation 18 Plan, dated March 21, 1991 (File No. 1-1839, Form 10-K for the year ended December 31, 1991, Exhibit (10)-6). x + (10)- Retirement Plan for Directors, effective Septem- 19 ber 1, 1994, as amended through March 12, 1997. x + (10)- Retirement Plan for Directors, effective January 20 1, 1987, as amended through March 12, 1997. x +*(10)- Unicom Corporation 1996 Directors' Fee Plan (File 21 No. 1-11375, Unicom Proxy Statement dated April 8, 1996, Appendix A). x x +*(10)- Executive Group Life Insurance Plan (File No. 1- 22 1839, Form 10-K for the year ended December 31, 1980, Exhibit (10)-3). x +*(10)- Amendment to the Executive Group Life Insurance 23 Plan (File No. 1-1839, Form 10-K for the year ended December 31, 1981, Exhibit (10)-4). x +*(10)- Amendment to the Executive Group Life Insurance 24 Plan dated December 12, 1986 (File No. 1-1839, Form 10-K for the year ended December 31, 1986, Exhibit (10)-6). x +*(10)- Amendment of Executive Group Life Insurance Plan 25 to implement program of "split dollar life in- surance" dated December 13, 1990 (File No. 1- 1839, Form 10-K for the year ended December 31, 1990, Exhibit (10)-10). x +*(10)- Commonwealth Edison Company Supplemental Manage- 26 ment Retirement Plan (File No. 1-1839, Form 10-K for the year ended December 31, 1985, Exhibit (10)-6). x +*(10)- Amendment of Executive Group Life Insurance Plan 27 to stabilize the death benefit applicable to participants dated July 22, 1992 (File No. 1- 1839, Form 10-K for the year ended December 31, 1992, Exhibit (10)-13). x +*(10)- Letter Agreement dated December 16, 1992 between 28 Com- monwealth Edison Company and Samuel K. Skinner (File No. 1-1839, Form 10-K for the year ended December 31, 1992, Exhibit (10)-14). x +*(10)- Amendment dated May 31, 1995 to Letter Agreement 29 dated December 16, 1992 between Commonwealth Ed- ison Company and Samuel K. Skinner (File No. 1-1839, Form 10-K for the year ended December 31, 1995, Exhibit (10)-27). x + (10)- Amendments dated December 11, 1996 and March 24, 30 1997 to Letter Agreement dated December 16, 1992 between Commonwealth Edison Company and Samuel K. Skinner. x +*(10)- Letter Agreement dated November 14, 1995 between 31 Commonwealth Edison Company and Leo F. Mullin (File No. 1-1839, Form 10-K for the year ended December 31, 1995, Exhibit (10)-28). x + (10)- Amendment dated March 24, 1997 to Letter Agree- 32 ment dated November 14, 1995 between Common- wealth Edison Company and Leo F. Mullin. x 6 EXHIBIT NUMBER DESCRIPTION OF DOCUMENT UNICOM COMED ------- ------------------------------------------------- ------ ----- +*(10)- Commonwealth Edison Company Excess Benefit Sav- 33 ings Plan (File No. 1-1839, Form 10-Q for the quarter ended June 30, 1994, Exhibit (10)-2). x +*(10)- Amendment No. 1 to Commonwealth Edison Company 34 Excess Benefit Savings Plan dated May 24, 1995 (File No. 1-1839, Form 10-K for the year ended December 31, 1995, Exhibit (10)-30). x +*(10)- Unicom Corporation Stock Bonus Deferral Plan 35 (File Nos. 1-11375 and 1-1839, Form 10-K for the year ended December 31, 1995, Exhibit (10)-31). x x (12) Statement re computation of ratios of earnings to fixed charges and ratios of earnings to fixed charges and preferred and preference stock divi- dend requirements for ComEd. x (21)-1 Subsidiaries of Unicom Corporation. x (21)-2 Subsidiaries of Commonwealth Edison Company. x (23)-1 Consent of experts for Unicom Corporation. x (23)-2 Consent of experts for Commonwealth Edison Compa- ny. x (24)-1 Powers of attorney of Directors whose names are signed to the Unicom Corporation Annual Report on Form 10-K pursuant to such powers. x (24)-2 Powers of attorney of Directors whose names are signed to the Commonwealth Edison Company Annual Report on Form 10-K pursuant to such powers. x (99)-1 Unicom Corporation's Current Report on Form 8-K dated January 31, 1997. x (99)-2 Commonwealth Edison Company's Current Report on Form 8-K dated January 31, 1997. x Pursuant to Item 601(b)(4)(iii) of Regulation S-K, Unicom and ComEd hereby agree to furnish to the SEC, upon request, any instrument defining the rights of holders of long-term debt of ComEd not filed as an exhibit herein. No such instrument authorizes securities in excess of 10% of the total assets of ComEd. 7