Old Dominion Electric Cooperative 10-Q12 Nov 142014 Q3 Quarterly reportFinancial data

Company Profile

Document_And_Entity_Informatio

Document And Entity Information	9 Months Ended
Document And Entity Information	Sep. 30, 2014
Document And Entity Information [Abstract]	'
Document Type	'10-Q
Amendment Flag	'false
Document Period End Date	30-Sep-14
Document Fiscal Year Focus	'2014
Document Fiscal Period Focus	'Q3
Entity Registration Name	'OLD DOMINION ELECTRIC COOPERATIVE
Entity Central Index Key	'0000885568
Current Fiscal year End Date	'--12-31
Entity Filer Category	'Non-accelerated Filer
Entity Common Stock, Shares Outstanding	0

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
ASSETS:	'	'
Property, plant, and equipment	$1,668,047	$1,660,548
Less accumulated depreciation	-774,868	-755,288
Net electric plant in service	893,179	905,260
Nuclear fuel, at amortized cost	13,772	23,636
Construction work in progress	127,610	36,482
Net Electric Plant	1,034,561	965,378
Investments:	'	'
Nuclear decommissioning trust	141,615	134,454
Lease deposits	98,471	96,634
Unrestricted investments and other	6,841	24,896
Total Investments	246,927	255,984
Current Assets:	'	'
Cash and cash equivalents	35,943	51,669
Accounts receivable	6,325	12,742
Accounts receivable - deposits	'	4,400
Accounts receivable - members	85,159	88,545
Fuel, materials, and supplies	67,266	49,246
Deferred energy	27,063	'
Prepayments and other	2,637	3,892
Total Current Assets	224,393	210,494
Deferred Charges:	'	'
Regulatory assets	84,113	87,983
Other	14,182	10,758
Total Deferred Charges	98,295	98,741
Total Assets	1,604,176	1,530,597
CAPITALIZATION AND LIABILITIES:	'	'
Patronage capital	376,986	369,997
Non-controlling interest	5,682	5,691
Total Patronage capital and Non-controlling interest	382,668	375,688
Long-term debt	784,330	749,330
Total Capitalization	1,166,998	1,125,018
Current Liabilities:	'	'
Long-term debt due within one year	28,292	28,292
Accounts payable	96,181	68,560
Accounts payable - members	43,252	24,998
Accrued expenses	18,518	4,991
Deferred energy	'	37,193
Total Current Liabilities	186,243	164,034
Deferred Credits and Other Liabilities:	'	'
Asset retirement obligations	83,917	80,860
Obligations under long-term lease	83,353	79,227
Regulatory liabilities	75,578	76,940
Other	8,087	4,518
Total Deferred Credits and Other Liabilities	250,935	241,545
Commitments and Contingencies	'	'
Total Capitalization and Liabilities	$1,604,176	$1,530,597

Condensed_Consolidated_Stateme

Condensed Consolidated Statements Of Revenues, Expenses, And Patronage Capital (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Condensed Consolidated Statements Of Revenues, Expenses, And Patronage Capital [Abstract]	'	'	'	'
Operating Revenues	$233,904	$220,393	$716,331	$628,729
Operating Expenses:	'	'	'	'
Fuel	33,667	39,036	178,294	100,805
Purchased power	138,293	139,227	448,455	405,886
Deferred energy	12,704	-9,941	-64,256	-27,971
Operations and maintenance	12,468	11,955	39,151	31,815
Administrative and general	9,000	11,364	31,453	32,811
Depreciation and amortization	10,476	10,586	31,480	31,795
Amortization of regulatory asset/(liability), net	1,282	1,110	4,080	2,694
Accretion of asset retirement obligations	1,019	995	3,057	2,985
Taxes, other than income taxes	1,980	2,051	6,287	6,467
Total Operating Expenses	220,889	206,383	678,001	587,287
Operating Margin	13,015	14,010	38,330	41,442
Other expense, net	-785	-607	-2,224	-1,908
Investment income	1,650	1,397	5,177	3,665
Interest charges, net	-11,537	-12,174	-34,305	-35,754
Income taxes	1	-75	2	-96
Net Margin including Non-controlling interest	2,344	2,551	6,980	7,349
Non-controlling interest	5	-103	9	-169
Net Margin attributable to ODEC	2,349	2,448	6,989	7,180
Patronage Capital - Beginning of Period	374,637	365,156	369,997	360,424
Patronage Capital - End of Period	$376,986	$367,604	$376,986	$367,604

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements Of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Operating Activities:	'	'
Net Margin including Non-controlling interest	$6,980	$7,349
Adjustments to reconcile net margin to net cash provided by operating activities:	'	'
Depreciation and amortization	31,480	31,795
Other non-cash charges	13,512	14,183
Amortization of lease obligations	4,126	3,855
Interest on lease deposits	-2,121	-2,071
Change in current assets	-2,562	28,524
Change in deferred energy	-64,256	-27,971
Change in current liabilities	42,992	-6,012
Change in regulatory assets and liabilities	336	-10,808
Change in deferred charges and credits	-2,643	565
Net Cash Provided by Operating Activities	27,844	39,409
Investing Activities:	'	'
Purchases of held to maturity securities	-2,240	-49,997
Proceeds from sale of held to maturity securities	20,000	53,117
Increase in other investments	-4,409	-3,676
Electric plant additions	-91,921	-18,772
Net Cash Used for Investing Activities	-78,570	-19,328
Financing Activities:	'	'
Issuance of long-term debt	'	100,000
Debt issuance costs	'	-744
Payment of long-term debt	'	-60,535
Draws on revolving credit facilities	222,954	'
Repayments on revolving credit facilities	-187,954	'
Net Cash Provided by Financing Activities	35,000	38,721
Net Change in Cash and Cash Equivalents	-15,726	58,802
Cash and Cash Equivalents - Beginning of Period	51,669	37,343
Cash and Cash Equivalents - End of Period	$35,943	$96,145

General

General	9 Months Ended
General	Sep. 30, 2014
General [Abstract]	'
General	'
	1. General

	The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments, which include only normal recurring adjustments, necessary for a fair statement of our consolidated financial position as of September 30, 2014, our consolidated results of operations for the three and nine months ended September 30, 2014 and 2013, and cash flows for the nine months ended September 30, 2014 and 2013. The consolidated results of operations for the three and nine months ended September 30, 2014, are not necessarily indicative of the results to be expected for the entire year. These financial statements should be read in conjunction with the financial statements and notes thereto included in our 2013 Annual Report on Form 10-K filed with the Securities and Exchange Commission.

	The accompanying financial statements reflect the consolidated accounts of Old Dominion Electric Cooperative and TEC. We are a not-for-profit wholesale power supply cooperative, incorporated under the laws of the Commonwealth of Virginia in 1948. We have two classes of members. Our Class A members are eleven customer-owned electric distribution cooperatives engaged in the retail sale of power to member customers located in Virginia, Delaware, and Maryland. Our sole Class B member is TEC, a taxable corporation owned by our member distribution cooperatives. Our board of directors is composed of two representatives from each of the member distribution cooperatives and one representative from TEC. In accordance with Consolidation Accounting, TEC is considered a variable interest entity for which we are the primary beneficiary. We have eliminated all intercompany balances and transactions in consolidation. The assets and liabilities and non-controlling interest of TEC are recorded at carrying value and the consolidated assets were $5.7 million at September 30, 2014 and December 31, 2013. The income taxes reported on our Condensed Consolidated Statement of Revenues, Expenses, and Patronage Capital relate to the tax provision for TEC. As TEC is wholly-owned by our Class A members, its equity is presented as a non-controlling interest in our consolidated financial statements.

	Our rates are set periodically by a formula that was accepted for filing by FERC, but are not regulated by the respective public service commissions of the states in which our member distribution cooperatives operate. See Note 5–Other–FERC Proceeding Related to Formula Rate below.

	We comply with the Uniform System of Accounts as prescribed by FERC. In conformity with GAAP, the accounting policies and practices applied by us in the determination of rates are also employed for financial reporting purposes.

	The preparation of our consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported therein. Actual results could differ from those estimates.

	We do not have any other comprehensive income for the periods presented.

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
Fair Value Measurements	Sep. 30, 2014
Fair Value Measurements [Abstract]	'
Fair Value Measurements	'
	2. Fair Value Measurements

	The fair value hierarchy gives the highest priority to quoted prices in active markets (Level 1) and the lowest priority to unobservable data (Level 3). In some cases, the inputs used to measure fair value might fall in different levels of the fair value hierarchy. The lowest level input that is significant to a fair value measurement in its entirety determines the applicable level in the fair value hierarchy. Assessing the significance of a particular input to the fair value measurement in its entirety requires judgment, considering factors specific to the asset or liability.

	The following table summarizes our financial assets and liabilities measured at fair value on a recurring basis as of September 30, 2014 and December 31, 2013:


				Quoted Prices
				in Active		Significant
				Markets for		Other		Significant
				Identical		Observable		Unobservable
		September 30,		Assets		Inputs		Inputs
		2014		(Level 1)		(Level 2)		(Level 3)

		(in thousands)
	Nuclear decommissioning trust (1)(2)	$	141,615	$	44,903	$	96,712	$	-
	Unrestricted investments and other (3)		190		190		-		-
	Total Financial Assets	$	141,805	$	45,093	$	96,712	$	-

	Derivatives - gas and power, net (4)	$	249	$	680	$	-431	$	-
	Total Financial Liabilities	$	249	$	680	$	-431	$	-



				Quoted Prices
				in Active		Significant
				Markets for		Other		Significant
				Identical		Observable		Unobservable
		December 31,		Assets		Inputs		Inputs
		2013		(Level 1)		(Level 2)		(Level 3)

		(in thousands)
	Nuclear decommissioning trust (1)(2)	$	134,454	$	42,661	$	91,793	$	-
	Unrestricted investments and other (3)		173		173		-		-
	Derivatives - gas and power, net (4)		412		412		-		-
	Total Financial Assets	$	135,039	$	43,246	$	91,793	$	-




	-1	For additional information about our nuclear decommissioning trust see Note 4 below.
	-2	Nuclear decommissioning trust includes investments that are available for sale and classified as Level 2. These Level 2 assets consist of an equity fund that attempts to replicate the return of the S&P 500, an equity fund that invests in small capitalization stocks, and an equity fund that invests in international stocks. The fair values of the investments in the nuclear decommissioning trust have been estimated using the net asset value per share.
	-3	Unrestricted investments and other includes investments that are related to equity securities.
	-4	Derivatives – gas and power, net represent natural gas futures contracts and purchased power contracts, which are recorded on our Condensed Consolidated Balance Sheet in deferred charges–other if an asset, or in deferred credits and other liabilities-other, if a liability. The level 2 derivatives – gas and power, net include gas and purchased power contracts valued by ACES. The gas contracts are indexed against NYMEX and the purchased power contracts are valued using observable market inputs for similar transactions. For additional information about our derivative financial instruments, see Notes 1 and 4 of the Notes to Consolidated Financial Statements in our 2013 Annual Report on Form 10-K.

	We did not have any financial assets and liabilities measured at fair value on a recurring basis and included in the Level 3 fair value category.

Derivatives_And_Hedging

Derivatives And Hedging	9 Months Ended
Derivatives And Hedging	Sep. 30, 2014
Derivatives And Hedging [Abstract]	'
Derivatives And Hedging	'
	3. Derivatives and Hedging

	We are exposed to market price risk by purchasing power to supply the power requirements of our member distribution cooperatives that are not met by our owned generation. In addition, the purchase of fuel to operate our generating facilities also exposes us to market price risk. To manage this exposure, we utilize derivative instruments. See Note 1 of the Notes to Consolidated Financial Statements in our 2013 Annual Report on Form 10-K.
	Changes in the fair value of our derivative instruments accounted for at fair value are recorded as a regulatory asset or regulatory liability. The change in these accounts is included in the operating activities section of our Condensed Consolidated Statements of Cash Flows.
	Excluding contracts accounted for as normal purchase/normal sale, we had the following outstanding derivative instruments:



				As of		As of
				30-Sep-14		31-Dec-13
	Commodity	Unit of Measure		Quantity		Quantity
	Natural gas	MMBTU		6,505,280		1,470,000
	Purchased power - excess sales	MWh		111,600		-

	The fair value of our derivative instruments, excluding contracts accounted for as normal purchase/normal sale, was as follows:


				Fair Value
				As of			As of
				September 30,			December 31,
		Balance Sheet Location		2014			2013
				(in thousands)
	Derivatives in an asset position:
	Natural gas futures contracts	Deferred charges-other		$	-		$	412
	Total derivatives in an asset position			$	-		$	412

	Derivatives in a liability position:
	Natural gas futures contracts	Deferred credits and other liabilities-other		$	134	.	$	-
	Purchased power contracts - excess sales	Deferred credits and other liabilities-other			115			-
	Total derivatives in a liability position			$	249		$	-

	The Effect of Derivative Instruments on the Condensed Consolidated Statements of Revenues, Expenses, and Patronage Capital for the Three and Nine months Ended September 30, 2014 and 2013





		Amount of							Amount of Gain				Amount of Gain
		Gain (Loss)						Location of	(Loss) Reclassified				(Loss) Reclassified
		Recognized in						Gain (Loss)	from Regulatory				from Regulatory
		Regulatory						Reclassified	Asset/Liability into				Asset/Liability into
	Derivatives Accounted for	Asset/Liability for						from Regulatory	Income for the				Income for the
	Utilizing Regulatory	Derivatives as of						Asset/Liability	Three Months Ended				Nine Months Ended
	Accounting	September 30,						into Income	September 30,				September 30,
		2014			2013				2014		2013		2014		2013
												3				3
		(in thousands)							(in thousands)				(in thousands)
	Natural gas futures contracts	$	-135		$	-11		Fuel	$	-1,081	$	-2,344	$	-746	$	-3,031
	Purchased power contracts - excess sales		-115			-		Purchased power		-		-		-		-
	Total	$	-250		$	-11			$	-1,081	$	-2,344	$	-746	$	-3,031



	Our hedging activities expose us to credit-related risks. We use hedging instruments, including forwards, futures, financial transmission rights, and options, to mitigate our power market price risks. Because we rely substantially on the use of hedging instruments, we are exposed to the risk that counterparties will default in performance of their obligations to us. Although we assess the creditworthiness of counterparties and other credit issues related to these hedging instruments, and we may require our counterparties to post collateral with us, defaults may still occur. Defaults may take the form of failure to physically deliver purchased energy or failure to pay. If this occurs, we may be forced to enter into alternative contractual arrangements or purchase energy in the forward, short-term, or spot markets at then-current market prices that may exceed the prices previously agreed upon with the defaulting counterparty.

Investments

Investments	9 Months Ended
Investments	Sep. 30, 2014
Investments [Abstract]	'
Investments	'


	4. Investments

	Investments were as follows at September 30, 2014 and December 31, 2013:



						Gross		Gross
						Unrealized		Unrealized		Fair		Carrying
	Description		Designation	Cost		Gains		Losses		Value		Value

				(in thousands)
	30-Sep-14

	Nuclear decommissioning trust (1)
	Debt securities		Available for sale	$	41,333	$	3,114	$	-	$	44,447	$	44,447
	Equity securities		Available for sale		66,434		30,278		-		96,712		96,712
	Cash and other		Available for sale		456		-		-		456		456
	Total Nuclear Decommissioning Trust			$	108,223	$	33,392	$	-	$	141,615	$	141,615

	Lease Deposits (2)
	Government obligations		Held to maturity	$	98,471	$	5,316	$	-	$	103,787	$	98,471
	Total Lease Deposits			$	98,471	$	5,316	$	-	$	103,787	$	98,471

	Unrestricted investments
	Government obligations		Held to maturity	$	2,006	$	-	$	-4	$	2,002	$	2,006
	Debt securities		Held to maturity		2,440		-		-1		2,439		2,440
	Total Unrestricted Investments			$	4,446	$	-	$	-5	$	4,441	$	4,446

	Other
	Equity securities		Trading	$	146	$	44	$	-	$	190	$	190
	Non-marketable equity investments		Equity		2,205		1,833		-		4,038		2,205
	Total Other			$	2,351	$	1,877	$	-	$	4,228	$	2,395
												$	246,927

	31-Dec-13

	Nuclear decommissioning trust (1)
	Debt securities		Available for sale	$	40,352	$	1,719	$	-	$	42,071	$	42,071
	Equity securities		Available for sale		62,293		29,500		-		91,793		91,793
	Cash and other		Available for sale		590		-		-		590		590
	Total Nuclear Decommissioning Trust			$	103,235	$	31,219	$	-	$	134,454	$	134,454

	Lease Deposits (2)
	Government obligations		Held to maturity	$	96,634	$	5,676	$	-	$	102,310	$	96,634
	Total Lease Deposits			$	96,634	$	5,676	$	-	$	102,310	$	96,634

	Unrestricted investments
	Government obligations		Held to maturity	$	20,174	$	1	$	-	$	20,175	$	20,174
	Debt securities		Held to maturity		2,200		-		-4		2,196		2,200
	Total Unrestricted Investments			$	22,374	$	1	$	-4	$	22,371	$	22,374

	Other
	Equity securities		Trading	$	131	$	42	$	-	$	173	$	173
	Non-marketable equity investments		Equity		2,349		1,735		-		4,084		2,349
	Total Other			$	2,480	$	1,777	$	-	$	4,257	$	2,522
												$	255,984


	-1	Investments in the nuclear decommissioning trust are restricted for the use of funding our share of the asset retirement obligations of the future decommissioning of North Anna. See Note 3 of the Notes to Consolidated Financial Statements in our 2013 Annual Report on Form 10-K. Unrealized gains and losses related to assets held in the nuclear decommissioning trust are deferred as a regulatory asset or liability.
	-2	Investments in lease deposits are restricted for the use of funding our future lease obligations. See Note 8 of the Notes to Consolidated Financial Statements in our 2013 Annual Report on Form 10-K.


Our investments by classification at September 30, 2014 and December 31, 2013, were as follows:



		30-Sep-14				31-Dec-13
				Carrying				Carrying
Description		Cost		Value		Cost		Value

		(in thousands)
Available for sale		$	108,223	$	141,615	$	103,235	$	134,454
Held to maturity			102,917		102,917		119,008		119,008
Equity			2,205		2,205		2,349		2,349
Trading			146		190		131		173
		$	213,491	$	246,927	$	224,723	$	255,984

Contractual maturities of debt securities at September 30, 2014, were as follows:




		Less than						More than
Description		1 year		1-5 years		5-10 years		10 years		Total

		(in thousands)
Available for sale (1)		$	-	$	-	$	44,447	$	-	$	44,447
Held to maturity			1,756		101,081		80		-		102,917
		$	1,756	$	101,081	$	44,527	$	-	$	147,364

(1) The contractual maturities of available for sale debt securities are measured using the effective duration of the bond fund within the nuclear decommissioning trust.

Other

Other	9 Months Ended
	Sep. 30, 2014
Other [Abstract]	'
Other	'
	5. Other

	Margin Stabilization

	Margin Stabilization allows us to review our actual demand-related costs of service and demand revenue and adjust revenues from our member distribution cooperatives to meet our financial coverage requirements and accumulate additional equity as approved by our board of directors. Our formula rate allows us to recover and refund amounts utilizing Margin Stabilization. Pursuant to FERC’s acceptance of the revisions to the formula rate as issued in FERC’s December 2, 2013 order (see “FERC Proceeding Related to Formula Rate” below), effective January 1, 2014:

		·	At year end, if the actual net margin attributable to ODEC, excluding any budgeted additional equity contributions, equals more than 20% of our actual total interest charges, our board of directors may approve that, utilizing Margin Stabilization, revenues will be reduced by the amount of such excess margins, or that such excess margins will be retained as an additional equity contribution. For year-to-date interim reporting, if the actual net margin attributable to ODEC, excluding any budgeted additional equity contributions, equals more than 20% of our actual total interest charges, utilizing Margin Stabilization, revenues will be reduced by the amount of such excess margins.

		·	At year end and for year-to-date interim reporting, if the actual net margin attributable to ODEC, excluding any budgeted additional equity contributions, equals more than 10% but less than 20% of our actual total interest charges, no adjustment is required.

		·	At year end and for year-to-date interim reporting, if the actual net margin attributable to ODEC, excluding any budgeted additional equity contributions, equals less than 10% of our actual total interest charges, utilizing Margin Stabilization, revenues will be increased to produce a net margin attributable to ODEC, excluding any budgeted additional equity contributions, equal to 10% of our actual total interest charges.
	For the three and nine months ended September 30, 2014, we recorded a reduction in operating revenues of $40,100 and $1.9 million, respectively, utilizing Margin Stabilization, to produce a net margin equal to 20% of our actual total interest charges. For the three and nine months ended September 30, 2013, we recorded a reduction to operating revenues of $2.3 million and $10.6 million, respectively, utilizing Margin Stabilization, to produce a net margin equal to 20% of our actual total interest charges.


	Three and Nine Months Ended September 2014 Results and the Impact on Deferred Energy
	Deferred energy expense represents the difference between energy revenues, which are based upon energy rates approved by our board of directors, and energy expenses, which are based upon actual energy costs incurred. In the three months ended September 30, 2014, we over-collected energy costs from our member distribution cooperatives by $12.7 million and for the nine months ended September 30, 2014, we under-collected energy costs from our member distribution cooperatives by $64.3 million. As a result, our deferred energy balance changed from an over-collection of $37.2 million at December 31, 2013, to an under-collection of $27.1 million at September 30, 2014. This under-collection was driven by first quarter 2014 results when the entire mid-Atlantic region experienced extremely cold weather, which increased our energy sales in MWh to our member distribution cooperatives 10.2% over the expected requirements, and which had a significant effect on our fuel and purchased power costs. To address the under-collection of energy costs, we increased our total energy rate 11.8% effective April 1, 2014, and an additional 2.4% effective October 1, 2014.
	Wildcat Point Generation Facility

	On April 23, 2013, we announced our intention to seek approval to develop and construct a 1,000 MW natural gas-fueled generation facility, named Wildcat Point, in Cecil County, Maryland. The development, construction, and operation of Wildcat Point are subject to obtainment of necessary governmental and regulatory approvals. On April 8, 2014, we received a Final Order granting approval of the CPCN from the MPSC. On June 2, 2014, we selected White Oak Power Constructors as the EPC contractor under a fixed price contract. Site preparation and engineering activities are in process and we anticipate permanent construction will begin in late 2014, and the facility will become operational in mid-2017. We currently anticipate that the project cost will be approximately $790.0 million, including financing costs.

	Wildcat Point will consist of two combustion turbines, two heat recovery steam generators and one steam turbine generator. Mitsubishi will supply the combustion turbines and Alstom will supply the heat recovery steam generators and the steam turbine generator. Beginning in June 2014, following the approval of the CPCN and our selection of the EPC contractor, we began capitalizing all construction-related costs related to Wildcat Point. For the nine months ended September 30, 2014 and 2013, we expensed $4.1 million and $5.8 million, respectively, of non-capital costs related to Wildcat Point. As of September 30, 2014, we capitalized progress payments for major equipment, EPC payments, emission reduction credits, and land and land rights totaling $76.2 million, which are recorded in construction work in progress.

	FERC Proceeding Related to Formula Rate

	On September 30, 2013, we filed with FERC to revise our cost-based formula rate to more closely align our cost recovery from our member distribution cooperatives with the methodologies used by PJM to allocate costs to us. On November 8, 2013, Bear Island, a customer of REC, filed a motion to intervene, protest, and request for hearing. On December 2, 2013, FERC issued its order accepting the proposed revisions for filing to become effective January 1, 2014, subject to refund, and establishing hearing and settlement procedures. Settlement discussions have been terminated and a litigation schedule has been set with a hearing date of December 9, 2014. The presiding judge of the proceeding referred the parties to dispute resolution procedures with the assistance of FERC Dispute Resolution Service; however, dispute resolution procedures have been terminated and the hearing procedures continue.

	Recovery of Costs from PJM

	On June 23, 2014, we filed a petition at FERC seeking recovery from PJM of approximately $14.9 million of unreimbursed costs, which were incurred during the first quarter of 2014 related to the dispatch of our combustion turbine generating facilities. The results of our petition cannot currently be determined and we have not recorded a receivable related to this matter.

	Revolving Credit Facility

	We currently maintain a $500.0 million, five-year revolving credit facility to cover our short-term and medium-term funding needs. Commitments under this syndicated credit agreement extend until March 5, 2019. At September 30, 2014, we had $35.0 million in borrowings outstanding under this facility, which are recorded in long-term debt. Additionally, at September 30, 2014, we had a letter of credit in the amount of $7.0 million outstanding. At December 31, 2013, we did not have any borrowings or letters of credit outstanding under this facility.

	Long-term debt

	We currently anticipate that we will issue long-term debt in the first quarter of 2015 to fund capital expenditures related to the construction of Wildcat Point.

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
Fair Value Measurements (Tables)	Sep. 30, 2014
Fair Value Measurements [Abstract]	'
Financial Assets And Liabilities Measured At Fair Value On A Recurring Basis	'


				Quoted Prices
				in Active		Significant
				Markets for		Other		Significant
				Identical		Observable		Unobservable
		September 30,		Assets		Inputs		Inputs
		2014		(Level 1)		(Level 2)		(Level 3)

		(in thousands)
	Nuclear decommissioning trust (1)(2)	$	141,615	$	44,903	$	96,712	$	-
	Unrestricted investments and other (3)		190		190		-		-
	Total Financial Assets	$	141,805	$	45,093	$	96,712	$	-

	Derivatives - gas and power, net (4)	$	249	$	680	$	-431	$	-
	Total Financial Liabilities	$	249	$	680	$	-431	$	-



				Quoted Prices
				in Active		Significant
				Markets for		Other		Significant
				Identical		Observable		Unobservable
		December 31,		Assets		Inputs		Inputs
		2013		(Level 1)		(Level 2)		(Level 3)

		(in thousands)
	Nuclear decommissioning trust (1)(2)	$	134,454	$	42,661	$	91,793	$	-
	Unrestricted investments and other (3)		173		173		-		-
	Derivatives - gas and power, net (4)		412		412		-		-
	Total Financial Assets	$	135,039	$	43,246	$	91,793	$	-




	-1	For additional information about our nuclear decommissioning trust see Note 4 below.
	-2	Nuclear decommissioning trust includes investments that are available for sale and classified as Level 2. These Level 2 assets consist of an equity fund that attempts to replicate the return of the S&P 500, an equity fund that invests in small capitalization stocks, and an equity fund that invests in international stocks. The fair values of the investments in the nuclear decommissioning trust have been estimated using the net asset value per share.
	-3	Unrestricted investments and other includes investments that are related to equity securities.
	-4	Derivatives – gas and power, net represent natural gas futures contracts and purchased power contracts, which are recorded on our Condensed Consolidated Balance Sheet in deferred charges–other if an asset, or in deferred credits and other liabilities-other, if a liability. The level 2 derivatives – gas and power, net include gas and purchased power contracts valued by ACES. The gas contracts are indexed against NYMEX and the purchased power contracts are valued using observable market inputs for similar transactions. For additional information about our derivative financial instruments, see Notes 1 and 4 of the Notes to Consolidated Financial Statements in our 2013 Annual Report on Form 10-K.

Derivatives_And_Hedging_Tables

Derivatives And Hedging (Tables)	9 Months Ended
Derivatives And Hedging (Tables)	Sep. 30, 2014
Derivatives And Hedging [Abstract]	'
Schedule Of Outstanding Derivative Instruments	'


				As of		As of
				30-Sep-14		31-Dec-13
	Commodity	Unit of Measure		Quantity		Quantity
	Natural gas	MMBTU		6,505,280		1,470,000
	Purchased power - excess sales	MWh		111,600		-


Schedule Of Fair Value Of Derivative Instruments	'


				Fair Value
				As of			As of
				September 30,			December 31,
		Balance Sheet Location		2014			2013
				(in thousands)
	Derivatives in an asset position:
	Natural gas futures contracts	Deferred charges-other		$	-		$	412
	Total derivatives in an asset position			$	-		$	412

	Derivatives in a liability position:
	Natural gas futures contracts	Deferred credits and other liabilities-other		$	134	.	$	-
	Purchased power contracts - excess sales	Deferred credits and other liabilities-other			115			-
	Total derivatives in a liability position			$	249		$	-


Schedule Of Derivative Instruments On The Statement Of Revenues, Expenses, And Patronage Capital	'




		Amount of							Amount of Gain				Amount of Gain
		Gain (Loss)						Location of	(Loss) Reclassified				(Loss) Reclassified
		Recognized in						Gain (Loss)	from Regulatory				from Regulatory
		Regulatory						Reclassified	Asset/Liability into				Asset/Liability into
	Derivatives Accounted for	Asset/Liability for						from Regulatory	Income for the				Income for the
	Utilizing Regulatory	Derivatives as of						Asset/Liability	Three Months Ended				Nine Months Ended
	Accounting	September 30,						into Income	September 30,				September 30,
		2014			2013				2014		2013		2014		2013
												3				3
		(in thousands)							(in thousands)				(in thousands)
	Natural gas futures contracts	$	-135		$	-11		Fuel	$	-1,081	$	-2,344	$	-746	$	-3,031
	Purchased power contracts - excess sales		-115			-		Purchased power		-		-		-		-
	Total	$	-250		$	-11			$	-1,081	$	-2,344	$	-746	$	-3,031

Investments_Tables

Investments (Tables)	9 Months Ended
Investments (Tables)	Sep. 30, 2014
Investments [Abstract]	'
Schedule Of Investments	'


								Gross			Gross
								Unrealized			Unrealized			Fair			Carrying
	Description		Designation		Cost			Gains			Losses			Value			Value

					(in thousands)
	30-Sep-14

	Nuclear decommissioning trust (1)
	Debt securities		Available for sale		$	41,333		$	3,114		$	-		$	44,447		$	44,447
	Equity securities		Available for sale			66,434			30,278			-			96,712			96,712
	Cash and other		Available for sale			456			-			-			456			456
	Total Nuclear Decommissioning Trust				$	108,223		$	33,392		$	-		$	141,615		$	141,615

	Lease Deposits (2)
	Government obligations		Held to maturity		$	98,471		$	5,316		$	-		$	103,787		$	98,471
	Total Lease Deposits				$	98,471		$	5,316		$	-		$	103,787		$	98,471

	Unrestricted investments
	Government obligations		Held to maturity		$	2,006		$	-		$	-4		$	2,002		$	2,006
	Debt securities		Held to maturity			2,440			-			-1			2,439			2,440
	Total Unrestricted Investments				$	4,446		$	-		$	-5		$	4,441		$	4,446

	Other
	Equity securities		Trading		$	146		$	44		$	-		$	190		$	190
	Non-marketable equity investments		Equity			2,205			1,833			-			4,038			2,205
	Total Other				$	2,351		$	1,877		$	-		$	4,228		$	2,395
																	$	246,927

	31-Dec-13

	Nuclear decommissioning trust (1)
	Debt securities		Available for sale		$	40,352		$	1,719		$	-		$	42,071		$	42,071
	Equity securities		Available for sale			62,293			29,500			-			91,793			91,793
	Cash and other		Available for sale			590			-			-			590			590
	Total Nuclear Decommissioning Trust				$	103,235		$	31,219		$	-		$	134,454		$	134,454

	Lease Deposits (2)
	Government obligations		Held to maturity		$	96,634		$	5,676		$	-		$	102,310		$	96,634
	Total Lease Deposits				$	96,634		$	5,676		$	-		$	102,310		$	96,634

	Unrestricted investments
	Government obligations		Held to maturity		$	20,174		$	1		$	-		$	20,175		$	20,174
	Debt securities		Held to maturity			2,200			-			-4			2,196			2,200
	Total Unrestricted Investments				$	22,374		$	1		$	-4		$	22,371		$	22,374

	Other
	Equity securities		Trading		$	131		$	42		$	-		$	173		$	173
	Non-marketable equity investments		Equity			2,349			1,735			-			4,084			2,349
	Total Other				$	2,480		$	1,777		$	-		$	4,257		$	2,522
																	$	255,984


	-1	Investments in the nuclear decommissioning trust are restricted for the use of funding our share of the asset retirement obligations of the future decommissioning of North Anna. See Note 3 of the Notes to Consolidated Financial Statements in our 2013 Annual Report on Form 10-K. Unrealized gains and losses related to assets held in the nuclear decommissioning trust are deferred as a regulatory asset or liability.
	-2	Investments in lease deposits are restricted for the use of funding our future lease obligations. See Note 8 of the Notes to Consolidated Financial Statements in our 2013 Annual Report on Form 10-K.


Schedule Of Investments By Classification	'


			30-Sep-14						31-Dec-13
						Carrying						Carrying
	Description		Cost			Value			Cost			Value

			(in thousands)
	Available for sale		$	108,223		$	141,615		$	103,235		$	134,454
	Held to maturity			102,917			102,917			119,008			119,008
	Equity			2,205			2,205			2,349			2,349
	Trading			146			190			131			173
			$	213,491		$	246,927		$	224,723		$	255,984


Schedule Of Contractual Maturities Of Debt Securities	'


			Less than									More than
	Description		1 year			1-5 years			5-10 years			10 years			Total

			(in thousands)
	Available for sale (1)		$	-		$	-		$	44,447		$	-		$	44,447
	Held to maturity			1,756			101,081			80			-			102,917
			$	1,756		$	101,081		$	44,527		$	-		$	147,364

	(1) The contractual maturities of available for sale debt securities are measured using the effective duration of the bond fund within the nuclear decommissioning trust.

General_Details

General (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
General [Abstract]	'	'
Consolidated assets	$5.70	$5.70

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'		'
Total Financial Assets	$141,805		$135,039
Total Financial Liabilities	249		'
Derivatives - Gas And Power [Member]	'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'		'
Total Financial Assets	'		412	[1]
Total Financial Liabilities	249	[1]	'
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]	'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'		'
Total Financial Assets	45,093		43,246
Total Financial Liabilities	680		'
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] \| Derivatives - Gas And Power [Member]	'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'		'
Total Financial Assets	'		412	[1]
Total Financial Liabilities	680	[1]	'
Significant Other Observable Inputs (Level 2) [Member]	'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'		'
Total Financial Assets	96,712		91,793
Total Financial Liabilities	-431		'
Significant Other Observable Inputs (Level 2) [Member] \| Derivatives - Gas And Power [Member]	'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'		'
Total Financial Liabilities	-431	[1]	'
Significant Unobservable Inputs (Level 3) [Member]	'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'		'
Total Financial Assets	'		'
Total Financial Liabilities	'		'
Significant Unobservable Inputs (Level 3) [Member] \| Derivatives - Gas And Power [Member]	'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'		'
Total Financial Assets	'		'	[1]
Total Financial Liabilities	'	[1]	'
Nuclear Decommissioning Trust [Member]	'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'		'
Total Financial Assets	141,615	[2],[3]	134,454	[2],[3]
Nuclear Decommissioning Trust [Member] \| Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]	'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'		'
Total Financial Assets	44,903	[2],[3]	42,661	[2],[3]
Nuclear Decommissioning Trust [Member] \| Significant Other Observable Inputs (Level 2) [Member]	'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'		'
Total Financial Assets	96,712	[2],[3]	91,793	[2],[3]
Nuclear Decommissioning Trust [Member] \| Significant Unobservable Inputs (Level 3) [Member]	'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'		'
Total Financial Assets	'	[2],[3]	'	[2],[3]
Unrestricted Investment And Other [Member]	'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'		'
Total Financial Assets	190	[4]	173	[4]
Unrestricted Investment And Other [Member] \| Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]	'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'		'
Total Financial Assets	190	[4]	173	[4]
Unrestricted Investment And Other [Member] \| Significant Other Observable Inputs (Level 2) [Member]	'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'		'
Total Financial Assets	'		'	[4]
Unrestricted Investment And Other [Member] \| Significant Unobservable Inputs (Level 3) [Member]	'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'		'
Total Financial Assets	'	[4]	'	[4]

[1]	Derivatives - gas and power, net represent natural gas futures contracts and purchased power contracts, which are recorded on our Condensed Consolidated Balance Sheet in deferred charges-other if an asset, or in deferred credits and other liabilities-other, if a liability. The level 2 derivatives - gas and power, net include gas and purchased power contracts valued by ACES. The gas contracts are indexed against NYMEX and the purchased power contracts are valued using observable market inputs for similar transactions. For additional information about our derivative financial instruments, see Notes 1 and 4 of the Notes to Consolidated Financial Statements in our 2013 Annual Report on Form 10-K
[2]	For additional information about our nuclear decommissioning trust see Note 4 below
[3]	Nuclear decommissioning trust includes investments that are available for sale and classified as Level 2. These Level 2 assets consist of an equity fund that attempts to replicate the return of the S&P 500, an equity fund that invests in small capitalization stocks, and an equity fund that invests in international stocks. The fair values of the investments in the nuclear decommissioning trust have been estimated using the net asset value per share
[4]	Unrestricted investments and other includes investments that are related to equity securities

Derivatives_And_Hedging_Schedu

Derivatives And Hedging (Schedule Of Outstanding Derivative Instruments) (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
	MMBTU	MMBTU
Natural Gas [Member]	'	'
Derivative [Line Items]	'	'
Quantity	6,505,280	1,470,000
Purchased Power [Member]	'	'
Derivative [Line Items]	'	'
Quantity	111,600	'

Derivatives_And_Hedging_Schedu1

Derivatives And Hedging (Schedule Of Fair Value Of Derivative Instruments) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Derivatives, Fair Value [Line Items]	'	'
Total derivatives in an asset position	'	$412
Total derivatives in a liability position	249	'
Natural Gas Future Contracts [Member] \| Deferred Charges - Other [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Total derivatives in an asset position	'	412
Natural Gas Future Contracts [Member] \| Deferred Credits And Other Liabilities - Other [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Total derivatives in a liability position	134	'
Purchased Power Contracts [Member] \| Deferred Credits And Other Liabilities - Other [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Total derivatives in a liability position	$115	'

Derivatives_And_Hedging_Schedu2

Derivatives And Hedging (Schedule Of Derivative Instruments On The Statement Of Revenues, Expenses, And Patronage Capital) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Amount of Gain (Loss) Recognized in Regulatory Asset/Liability for Derivatives	($250)	($11)	($250)	($11)
Amount Of Gain (Loss) Reclassified from Regulatory Asset/Liability into Income	-1,081	-2,344	-746	-3,031
Natural Gas Future Contracts [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Amount of Gain (Loss) Recognized in Regulatory Asset/Liability for Derivatives	-135	-11	-135	-11
Natural Gas Future Contracts [Member] \| Fuel [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Amount Of Gain (Loss) Reclassified from Regulatory Asset/Liability into Income	-1,081	-2,344	-746	-3,031
Purchased Power Contracts [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Amount of Gain (Loss) Recognized in Regulatory Asset/Liability for Derivatives	($115)	'	($115)	'

Investments_Schedule_Of_Invest

Investments (Schedule Of Investments) (Details) (USD $)	9 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013
Schedule of Invested Securities [Line Items]	'		'
Available for sale, Cost	$108,223		$103,235
Available for sale, Fair Value	141,615		134,454
Held to maturity, Cost	102,917		119,008
Held to maturity, Fair Value	102,917		'
Equity, Cost	2,205		2,349
Trading, Cost	146		131
Trading, Fair Value	190		173
Total Nuclear Decommissioning Trust	141,615		134,454
Total Lease Deposits	98,471		96,634
Total Carrying Value	246,927		255,984
Nuclear Decommissioning Trust [Member]	'		'
Schedule of Invested Securities [Line Items]	'		'
Available for sale, Cost	108,223	[1]	103,235	[1]
Available for sale, Gross Unrealized Gains	33,392	[1]	31,219	[1]
Available for sale, Fair Value	141,615	[1]	134,454	[1]
Total Nuclear Decommissioning Trust	141,615	[1]	134,454	[1]
Nuclear Decommissioning Trust [Member] \| Debt Securities [Member]	'		'
Schedule of Invested Securities [Line Items]	'		'
Available for sale, Cost	41,333	[1]	40,352	[1]
Available for sale, Gross Unrealized Gains	3,114	[1]	1,719	[1]
Available for sale, Fair Value	44,447	[1]	42,071	[1]
Total Carrying Value	44,447	[1]	42,071	[1]
Nuclear Decommissioning Trust [Member] \| Equity Securities [Member]	'		'
Schedule of Invested Securities [Line Items]	'		'
Available for sale, Cost	66,434	[1]	62,293	[1]
Available for sale, Gross Unrealized Gains	30,278	[1]	29,500	[1]
Available for sale, Fair Value	96,712	[1]	91,793	[1]
Total Carrying Value	96,712	[1]	91,793	[1]
Nuclear Decommissioning Trust [Member] \| Cash And Other [Member]	'		'
Schedule of Invested Securities [Line Items]	'		'
Available for sale, Cost	456	[1]	590	[1]
Available for sale, Fair Value	456	[1]	590	[1]
Total Carrying Value	456	[1]	590	[1]
Lease Deposits [Member]	'		'
Schedule of Invested Securities [Line Items]	'		'
Held to maturity, Cost	98,471	[2]	96,634	[2]
Held to maturity, Gross Unrealized Gains	5,316	[2]	5,676	[2]
Held to maturity, Fair Value	103,787	[2]	102,310	[2]
Total Lease Deposits	98,471	[2]	96,634	[2]
Lease Deposits [Member] \| Government Obligations [Member]	'		'
Schedule of Invested Securities [Line Items]	'		'
Held to maturity, Cost	98,471	[2]	96,634	[2]
Held to maturity, Gross Unrealized Gains	5,316	[2]	5,676	[2]
Held to maturity, Fair Value	103,787	[2]	102,310	[2]
Total Carrying Value	98,471	[2]	96,634	[2]
Unrestricted Investments [Member]	'		'
Schedule of Invested Securities [Line Items]	'		'
Held to maturity, Cost	4,446		22,374
Held to maturity, Gross Unrealized Gains	'		1
Held to maturity, Gross Unrealized Losses	-5		-4
Held to maturity, Fair Value	4,441		22,371
Total Unrestricted Investments	4,446		22,374
Unrestricted Investments [Member] \| Government Obligations [Member]	'		'
Schedule of Invested Securities [Line Items]	'		'
Held to maturity, Cost	2,006		20,174
Held to maturity, Gross Unrealized Gains	'		1
Held to maturity, Gross Unrealized Losses	-4		'
Held to maturity, Fair Value	2,002		20,175
Total Carrying Value	2,006		20,174
Unrestricted Investments [Member] \| Debt Securities [Member]	'		'
Schedule of Invested Securities [Line Items]	'		'
Held to maturity, Cost	2,440		2,200
Held to maturity, Gross Unrealized Losses	-1		-4
Held to maturity, Fair Value	2,439		2,196
Total Carrying Value	2,440		2,200
Other Debt Securities [Member]	'		'
Schedule of Invested Securities [Line Items]	'		'
Other, Cost	2,351		2,480
Other, Gross Unrealized Gains	1,877		1,777
Other, Fair Value	4,228		4,257
Total Other	2,395		2,522
Other Debt Securities [Member] \| Equity Securities [Member]	'		'
Schedule of Invested Securities [Line Items]	'		'
Trading, Cost	146		131
Trading, Gross Unrealized Gains	44		42
Trading, Fair Value	190		173
Total Carrying Value	190		173
Other Debt Securities [Member] \| Non-Marketable Equity Investments [Member]	'		'
Schedule of Invested Securities [Line Items]	'		'
Equity, Cost	2,205		2,349
Equity, Gross Unrealized Gains	1,833		1,735
Equity, Fair Value	4,038		4,084
Total Carrying Value	$2,205		$2,349

[1]	Investments in the nuclear decommissioning trust are restricted for the use of funding our share of the asset retirement obligations of the future decommissioning of North Anna. See Note 3 of the Notes to Consolidated Financial Statements in our 2013 Annual Report on Form 10-K. Unrealized gains and losses related to assets held in the nuclear decommissioning trust are deferred as a regulatory asset or liability.
[2]	Investments in lease deposits are restricted for the use of funding our future lease obligations. See Note 8 of the Notes to Consolidated Financial Statements in our 2013 Annual Report on Form 10-K.

Investments_Schedule_Of_Invest1

Investments (Schedule Of Investments By Classification) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Investments [Abstract]	'	'
Available for sale, Cost	$108,223	$103,235
Held to maturity, Cost	102,917	119,008
Equity, Cost	2,205	2,349
Trading, Cost	146	131
Investments, Cost	213,491	224,723
Available for sale, Carrying Value	141,615	134,454
Held to maturity, Carrying Value	102,917	119,008
Equity, Carrying Value	2,205	2,349
Trading, Carrying Value	190	173
Total Investments	$246,927	$255,984

Investments_Schedule_Of_Contra

Investments (Schedule Of Contractual Maturities Of Debt Securities) (Details) (USD $)	Sep. 30, 2014
In Thousands, unless otherwise specified	Sep. 30, 2014
Investments [Abstract]	'
Available for sale securities, Less than 1 year	'	[1]
Available for sale securities, 1-5 years	'	[1]
Available for sale securities, 5-10 years	44,447	[1]
Available for sale securities, More than 10 years	'	[1]
Available for sale securities, Total	44,447	[1]
Held to maturity securities, Less than 1 year	1,756
Held to maturity securities, 1-5 years	101,081
Held to maturity securities, 5-10 years	80
Held to maturity securities, More than 10 years	'
Held to maturity, carrying value	102,917
Contractual maturities of securities, Less than 1 year	1,756
Contractual maturities of securities, 1-5 years	101,081
Contractual maturities of securities, 5-10 years	44,527
Contractual maturities of securities, More than 10 years	'
Contractual maturities of securities, Total	$147,364

[1]	The contractual maturities of available for sale debt securities are measured using the effective duration of the bond fund within the nuclear decommissioning trust.

Other_Details

Other (Details) (USD $)

0 Months Ended

3 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

Jun. 23, 2014

Apr. 01, 2014

Sep. 30, 2014

Mar. 31, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Oct. 01, 2014

Sep. 30, 2014

Wildcat Point [Member]

Letter of Credit [Member]

Subsequent Event [Member]

Minimum [Member]

Maximum [Member]

item

Other Events [Line Items]

Percentage of actual total interest charges

20.00%

10.00%

20.00%

Adjustments under Margin Stabilization

$40,100

$2,300,000

$1,900,000

$10,600,000

Deferred energy expense

12,704,000

-9,941,000

-64,256,000

-27,971,000

Deferred energy under-collection

27,063,000

Deferred energy over-collection

37,193,000

Increase in energy sales

10.20%

Increase in total energy rate

11.80%

2.40%

Estimated project cost

790,000,000

Power facility output

1,000

Number of combustion turbines

Number of heat recovery steam generators

Number of steam turbine generators

Administrative and general

9,000,000

11,364,000

31,453,000

32,811,000

4,100,000

5,800,000

Construction work in progress

127,610,000

36,482,000

76,200,000

Unreimbursed costs

14,900,000

Credit facility, term

'5 years

Credit facility, maximum borrowing capacity

500,000,000

Line of credit outstanding

$35,000,000

$7,000,000