Statements Of Cash Flows (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Assignable margins	$ 4,841,576	$ 3,423,068
Adjustments to reconcile assignable margins to net cash provided by operating activities:
Depreciation	9,621,632	8,131,159
Amortization and depreciation cleared to operating expenses	1,558,339	1,215,262
Allowance for funds used during construction	(44,069)	(60,205)
Write off of inventory, deferred charges and projects	162,092	150,763
Other	(12,381)	(207)
(Increase) decrease in assets:
Accounts receivable, net	(1,508,142)	(2,733,961)
Fuel cost under-recovery	0	914,976
Materials and supplies	(520,201)	(2,682,529)
Fuel stock	609,759	0
Prepayments	(2,505,911)	(2,386,851)
Other assets	(2,173,404)	(6,641)
Deferred charges	(220,960)	(1,057,592)
Increase (decrease) in liabilities:
Accounts payable	957,401	983,052
Consumer deposits	13,560	(1,036,265)
Fuel cost over-recovery	(962,079)	7,955,625
Accrued interest	(5,792,447)	(3,840,257)
Salaries, wages and benefits	87,355	483,204
Fuel	613,452	(5,454,497)
Other current liabilities	396,871	355,649
Deferred liabilities	0	(73,697)
Net cash provided by operating activities	5,122,443	4,280,056
Cash flows from investing activities:
Investment in associated organizations	424,484	663,697
Proceeds from restricted cash equivalents	0	120,000,000
Extension and replacement of plant	(15,376,952)	(27,042,451)
Net cash (used in) provided by investing activities	(15,036,314)	93,621,246
Cash flows from financing activities:
Payments for debt issue costs	0	(1,556,362)
Proceeds from short-term obligations	28,500,000	13,000,000
Proceeds from long-term obligations	0	250,000,000
Repayments of short-term obligations	0	(175,000,000)
Repayments of long-term obligations	(23,408,703)	(131,867,197)
Memberships and donations received	8,475	7,397
Retirement of patronage capital and estate payments	0	(9,410)
Net receipts (refunds) on consumer advances for construction	1,100	117,378
Net cash provided by (used in) financing activities	5,100,872	(45,308,194)
Net change in cash and cash equivalents	(4,812,999)	52,593,108
Cash and cash equivalents at beginning of period	14,047,469	17,118,118
Cash and cash equivalents at end of period	9,234,470	69,711,226
Supplemental disclosure of non-cash investing and financing activities:
Retirement of plant	2,275,120	935,124
Extension and replacement of plant included in accounts payable	6,128,853	16,213,086
Supplemental disclosure of cash flow information - interest expense paid, net of amounts capitalized	$ 10,486,780	$ 6,396,007