CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 21,168	$ 1,009
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sale relating to BCE	(22,988)	0
Depreciation and amortization including nuclear fuel	226,413	208,772
Deferred fuel and purchased power	(33,094)	(90,305)
Deferred fuel and purchased power amortization	108,552	80,904
Allowance for equity funds used during construction	(10,292)	(15,061)
Deferred income taxes	(23,297)	(5,150)
Deferred investment tax credit	(294)	3,749
Change in derivative instruments fair value	0	786
Stock compensation	5,935	3,635
Changes in current assets and liabilities:
Customer and other receivables	84,888	2,831
Accrued unbilled revenues	1,074	21,488
Materials, supplies and fossil fuel	4,374	(14,392)
Income tax receivable	332	2,387
Other current assets	(32,306)	(8,099)
Accounts payable	23,799	(69,576)
Accrued taxes	58,018	50,044
Other current liabilities	(55,343)	(84,003)
Change in long-term regulatory assets	9,850	14,557
Change in long-term regulatory liabilities	16,493	33,555
Change in other long-term assets	(19,571)	(72,593)
Change in operating lease assets	(8,416)	(8,920)
Change in other long-term liabilities	(17,489)	104,858
Change in operating lease liabilities	9,547	51,129
Net cash provided by operating activities	347,353	211,605
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(517,756)	(445,171)
Contributions in aid of construction	69,047	25,165
Proceeds from sale relating to BCE	38,681	0
Allowance for borrowed funds used during construction	(13,141)	(12,722)
Proceeds from nuclear decommissioning trust sales and other special use funds	443,870	226,626
Investment in nuclear decommissioning trust and other special use funds	(443,854)	(227,196)
Other	(939)	(19,941)
Net cash used for investing activities	(424,092)	(453,239)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance of long-term debt	0	185,136
Short-term borrowing and (repayments) - net	184,000	156,830
Dividends paid on common stock	(98,082)	(96,078)
Common stock equity issuance and (purchases) - net	(4,500)	(2,135)
Net cash provided by financing activities	81,418	243,753
NET INCREASE IN CASH AND CASH EQUIVALENTS	4,679	2,119
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	4,955	4,832
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 9,634	$ 6,951