CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Operating activities:
Net income	$ 21,097	$ 15,955
Adjustments to reconcile net income to cash flows from operating activities:
Depreciation and amortization	44,160	30,698
Pension and other postretirement benefit costs, net of contributions	(11,792)	3,060
Deferred income taxes and unamortized investment tax credit, net	14,155	4,097
Allowance for equity funds used during construction	(70)	(3,653)
Stock compensation expense	1,097	1,670
Non-cash loss on derivatives		652
Other	(163)
Cash flows impacted by changes in:
Accounts receivable and accrued unbilled revenues	12,418	6,246
Fuel, materials and supplies	(4,599)	(1,591)
Prepaid expenses, other current assets and deferred charges	(13,554)	(5,879)
Accounts payable and accrued liabilities	(11,666)	(18,806)
Interest, taxes accrued and customer deposits	6,125	8,400
Other liabilities and other deferred credits	5,623	1,137
Accumulated provision - rate refunds	603
Net cash provided by operating activities	63,434	41,986
Investing activities:
Capital expenditures - regulated	(40,022)	(57,200)
Capital expenditures and other investments - non-regulated	(1,339)	(2,004)
Net cash used in investing activities	(41,361)	(59,204)
Financing activities:
Proceeds from first mortgage bonds, net		99,786
Long-term debt issuance costs		(924)
Debt financing costs	(815)
Proceeds from issuance of common stock net of issuance costs	4,953	56,178
Repayment of first mortgage bonds		(50,000)
Redemption of trust preferred securities		(50,000)
Net short-term repayments	(5,500)	(10,500)
Dividends	(26,732)	(25,464)
Other	(440)	(750)
Net cash (used in)/provided by financing activities	(28,534)	18,326
Net (decrease)/increase in cash and cash equivalents	(6,461)	1,108
Cash and cash equivalents at beginning of period	14,499	5,620
Cash and cash equivalents at end of period	$ 8,038	$ 6,728