Consolidated Balance Sheets - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Utility plant:
Electric plant in service	$ 1,207,649,476	$ 1,205,092,224
Construction work in progress	16,862,505	17,952,573
Total utility plant	1,224,511,981	1,223,044,797
Less accumulated depreciation	(519,871,345)	(515,496,312)
Net utility plant	704,640,636	707,548,485
Other property and investments, at cost:
Nonutility property	76,889	76,889
Investments in associated organizations	8,566,395	8,980,410
Special funds	1,843,468	1,466,010
Restricted cash equivalents	748,953	1,028,758
Total other property and investments	11,235,705	11,552,067
Current assets:
Cash and cash equivalents	4,689,826	5,485,631
Special deposits	54,300	54,300
Restricted cash equivalents	556,783	687,370
Marketable securities	10,990,577	11,420,900
Fuel cost under-recovery	1,670,979	4,921,794
Accounts receivable, net	25,691,910	35,680,680
Materials and supplies	16,152,897	15,291,095
Fuel stock	8,999,951	6,901,994
Prepayments	3,216,623	4,953,170
Other current assets	180,598	257,193
Total current assets	72,204,444	85,654,127
Other non-current assets:
Deferred charges, net	33,522,024	32,764,065
Total other non-current assets	33,522,024	32,764,065
Total assets	821,602,809	837,518,744
Equities and margins:
Memberships	1,732,662	1,719,154
Patronage capital	174,834,061	172,928,887
Other	14,798,475	14,653,253
Total equities and margins	191,365,198	189,301,294
Long-term obligations, excluding current installments:
Bonds payable	398,416,664	421,833,331
Notes payable	35,568,000	37,164,000
Less unamortized debt issuance costs	(2,546,476)	(2,669,485)
Total long-term obligations	431,438,188	456,327,846
Current liabilities:
Current installments of long-term obligations	26,608,667	26,608,667
Commercial paper	53,000,000	50,000,000
Accounts payable	10,003,134	7,420,279
Consumer deposits	5,084,010	5,335,896
Accrued interest	5,683,092	5,991,619
Salaries, wages and benefits	8,004,309	7,017,131
Fuel	7,810,650	9,913,781
Other current liabilities	8,598,707	7,079,821
Total current liabilities	124,792,569	119,367,194
Other non-current liabilities:
Deferred compensation	1,318,295	1,229,294
Other liabilities, non-current	730,506	531,630
Deferred liabilities	1,214,613	1,249,390
Patronage capital payable	8,798,077	8,798,077
Cost of removal obligation / asset retirement obligation	61,945,363	60,714,019
Total other non-current liabilities	74,006,854	72,522,410
Total liabilities, equities and margins	$ 821,602,809	$ 837,518,744