Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Electric plant:
In service	$ 8,430,496	$ 8,345,241
Less: Accumulated provision for depreciation	(3,837,389)	(3,762,690)
Total in service	4,593,107	4,582,551
Nuclear fuel, at amortized cost	360,297	369,529
Construction work in progress	2,507,335	2,374,392
Total electric plant	7,460,739	7,326,472
Investments and funds:
Nuclear decommissioning trust fund	373,236	366,004
Investment in associated companies	68,230	67,368
Long-term investments	84,833	85,728
Restricted cash and investments	76,535	118,390
Other	18,316	17,397
Total investments and funds	621,150	654,887
Current assets:
Cash and cash equivalents	286,777	237,391
Restricted short-term investments	252,652	247,057
Receivables	141,537	130,366
Inventories, at average cost	267,992	270,849
Prepayments and other current assets	23,260	12,667
Total current assets	972,218	898,330
Deferred charges:
Deferred debt expense, being amortized	97,553	97,902
Regulatory assets	513,026	484,049
Prepayments to Georgia Power Company	80,580	73,726
Other	11,750	10,877
Total deferred charges	702,909	666,554
Total assets	9,757,016	9,546,243
Capitalization:
Patronage capital and membership fees	787,345	761,124
Accumulated other comprehensive margin	107	468
Total patronage capital and membership fees and accumulated other comprehensive margin	787,452	761,592
Long-term debt	7,326,478	7,113,000
Obligation under capital leases	98,532	100,456
Other	16,988	16,434
Total capitalization	8,229,450	7,991,482
Current liabilities:
Long-term debt and capital leases due within one year	161,294	160,754
Short-term borrowings	261,744	234,369
Accounts payable	42,924	98,337
Accrued interest	58,792	58,841
Member power bill prepayments, current	143,681	166,013
Other current liabilities	54,619	70,748
Total current liabilities	723,054	789,062
Deferred credits and other liabilities:
Gain on sale of plant, being amortized	19,936	20,676
Asset retirement obligations	465,573	432,260
Member power bill prepayments, non-current	43,240	31,941
Power sale agreement, being amortized	6,334	12,669
Regulatory liabilities	192,970	194,073
Other	76,459	74,080
Total deferred credits and other liabilities	804,512	765,699
Total equity and liabilities	$ 9,757,016	$ 9,546,243