CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities
Net income	$ 11,017	$ 8,777
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	12,687	11,074
Amortization of deferred financing costs	1,004	1,003
Allowance for funds used during construction - other funds		(759)
Equity based compensation	140	292
Changes in assets and liabilities:
Due from affiliates	5,496	5,638
Inventory	47	(143)
Prepaids and other current assets	(721)	(829)
Accounts payable and accrued liabilities	140	7,487
Net cash provided by operating activities	29,810	32,540
Cash flows from investing activities
Additions to electric plant	(52,223)	(58,495)
Net cash used in investing activities	(52,223)	(58,495)
Cash flows from financing activities
Proceeds from short-term borrowings	34,000
Repayments of short-term borrowings	(9,500)	(54,000)
Proceeds from borrowings of long-term debt		100,000
Repayments of long-term debt	(1,921)	(1,817)
Deferred financing costs		(649)
Dividends and distributions paid	(15,161)	(13,634)
Net cash provided by financing activities	7,418	29,900
Net (decrease) increase in cash and cash equivalents	(14,995)	3,945
Cash and cash equivalents at beginning of period	17,612	9,471
Cash and cash equivalents at end of period	$ 2,617	$ 13,416