Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Operating activities
Net margins including noncontrolling interest	$ (9,023)	$ (49,724)
Adjustments to reconcile net margins to net cash provided by operating activities:
Depreciation, amortization and depletion	88,776	85,071
Amortization of NRECA Retirement Security Plan prepayment	2,686	2,686
Amortization of debt issuance costs	1,462	1,178
Deposits associated with generator interconnection requests	9,932	11,127
Rate stabilization revenue	(16,901)	(22,821)
Capital credit allocations from cooperatives and income from coal mines under refund distributions	1,914	1,466
Changes in operating assets and liabilities:
Accounts receivable	3,188	24,901
Coal inventory	(16,105)	(9,711)
Materials and supplies	(3,557)	(10,505)
Accounts payable and accrued expenses	(527)	(15,617)
Accrued interest	(2,004)	(2,479)
Accrued property taxes	(11,548)	(15,134)
Deferred membership withdrawal	709,395	0
Other	(14,101)	6,459
Net cash provided by operating activities	743,587	6,897
Investing activities
Purchases of plant	(155,210)	(80,920)
Sale of electric plant	75,000	0
Sale of non-utility assets	3,136	0
Purchase of investments	(95,000)	0
Changes in deferred charges	(5,245)	443
Net cash used in investing activities	(177,319)	(80,477)
Financing activities
Changes in Member advances	(3,677)	(272)
Payments of long-term debt	(222,881)	(69,005)
Proceeds from issuance of long-term debt	0	450,000
Debt issuance costs	(8)	(605)
Change in short-term borrowings, net	(68,304)	(273,502)
Retirement of patronage capital	(87,414)	(5,446)
Equity distribution to noncontrolling interest	(10,028)	(949)
Other	(527)	(482)
Net cash provided by (used in) financing activities	(392,839)	99,739
Net increase in cash, cash equivalents and restricted cash and investments	173,429	26,159
Cash, cash equivalents and restricted cash and investments – beginning	110,018	110,682
Cash, cash equivalents and restricted cash and investments – ending	283,447	136,841
Supplemental cash flow information:
Cash paid for interest	86,937	83,477
Cash paid for income taxes	0	0
Supplemental disclosure of noncash investing and financing activities:
Change in plant expenditures included in accounts payable	$ (2,769)	$ (1,169)