Unaudited Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
CASH FLOWS FROM OPERATIONS:
Net income	$ 45,590	$ 63,840
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	149,862	139,607
(Deferral) amortization of regulatory assets	(10,639)	2,480
Amortization of debt premium	574	704
Deferred income taxes and investment tax credit adjustments - net	24,284	(1,505)
Loss on early extinguishment of debt	22,051	0
Allowance for equity funds used during construction	(9,969)	(4,831)
Change in certain assets and liabilities:
Accounts receivable	4,267	761
Fuel, materials and supplies	(20,751)	9,774
Income taxes receivable or payable	0	33,956
Financial transmission rights	(359)	(6,465)
Accounts payable and accrued expenses	191	(27,808)
Accrued real estate and personal property taxes	3,257	4,412
Accrued interest	8,743	19,150
Pension and other postretirement benefit expenses	(29,986)	(56,343)
Short-term and long-term regulatory assets and liabilities	3,777	16,250
Prepaids and other current assets	(5,113)	(3,453)
Other - net	2,458	2,147
Net cash provided by operating activities	188,237	192,676
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures - utility	(458,180)	(232,313)
Project development costs	(8,146)	(7,277)
Cost of removal, net of salvage	(7,997)	(3,737)
Other	58	(43)
Net cash used in investing activities	(474,265)	(243,370)
CASH FLOWS FROM FINANCING ACTIVITIES:
Short-term debt borrowings	222,000	105,000
Short-term debt repayments	(222,000)	(105,000)
Long-term borrowings, net of discount	663,350	128,358
Retirement of long-term debt, including make whole provision	(420,242)	0
Dividends on common stock	(61,170)	(78,000)
Issuance of common stock	214,366	0
Equity contribution from AES	0	106,400
Preferred dividends of subsidiary	(2,410)	(2,410)
Deferred financing costs paid	(7,363)	(1,724)
Retention payments on capital expenditures	(1,829)	0
Other	(369)	(108)
Net cash provided by financing activities	384,333	152,516
Net change in cash and cash equivalents	98,305	101,822
Cash and cash equivalents at beginning of period	26,933	19,067
Cash and cash equivalents at end of period	125,238	120,889
Cash paid during the period for:
Interest (net of amount capitalized)	64,133	59,833
Income taxes	0	0
Non-cash investing activities:
Accruals for capital expenditures	$ 61,188	$ 49,218