CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Electric plant:
In service	$ 9,209,983	$ 8,981,238
Right-of-use assets--finance leases	302,732	302,732
Less: Accumulated provision for depreciation	(4,833,025)	(4,544,405)
Net in service	4,679,690	4,739,565
Nuclear fuel, at amortized cost	359,270	358,358
Construction work in progress	4,816,896	3,866,042
Total electric plant	9,855,856	8,963,965
Investments and funds:
Nuclear decommissioning trust fund	511,339	420,818
Investment in associated companies	73,318	77,037
Long-term investments	254,864	164,125
Restricted investments	461,757	503,158
Other	26,422	24,259
Total investments and funds	1,327,700	1,189,397
Current assets:
Cash and cash equivalents	448,612	752,618
Restricted short-term investments	71,833	150,000
Receivables	166,429	153,647
Inventories, at average cost	277,729	259,087
Prepayments and other current assets	9,862	8,098
Total current assets	974,465	1,323,450
Deferred charges and other assets:
Regulatory assets	763,512	655,063
Prepayments to Georgia Power Company	48,052	29,459
Other	20,528	21,934
Total deferred charges	832,092	706,456
Total assets	12,990,113	12,183,268
Capitalization:
Patronage capital and membership fees	1,016,747	962,286
Long-term debt	9,403,847	8,727,148
Obligations under finance leases	75,649
Obligations under finance leases		81,730
Other	25,196	21,428
Total capitalization	10,521,439	9,792,592
Current liabilities:
Long-term debt and finance leases due within one year	217,440	522,289
Short-term borrowings	282,370	0
Accounts payable	165,049	206,577
Accrued interest	65,895	60,971
Member power bill prepayments, current	77,066	224,957
Other current liabilities	49,443	49,465
Total current liabilities	857,263	1,064,259
Deferred credits and other liabilities:
Asset retirement obligations	1,070,640	1,017,563
Member power bill prepayments, non-current	134,396	54,750
Regulatory liabilities	364,241	218,998
Other	42,134	35,106
Total deferred credits and other liabilities	1,611,411	1,326,417
Total equity and liabilities	12,990,113	12,183,268
Commitments and Contingencies (Notes 1, 7, 10, 11 and 12)