MGE Energy Inc Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Activities:
Net Income	$ 74,905	$ 64,446	$ 60,928
Items not affecting cash:
Depreciation and amortization	38,838	38,707	40,942
Deferred income taxes	38,365	44,797	33,698
Provision for doubtful receivables	2,448	2,498	2,312
Employee benefit plan expenses	13,303	18,353	13,703
Equity earnings in ATC	(9,434)	(9,079)	(8,615)
Other items	117	1,283	1,616
Changes in working capital items:
Receivable - margin account (change)	1,444	3,726	(2,609)
Trade and other receivables (change)	(3,827)	(6,208)	173
Inventories (change)	2,488	1,457	7,438
Unbilled revenues (change)	(3,720)	(2,508)	3,466
Prepaid taxes (change)	414	2,731	245
Other current assets (change)	1,070	367	538
Accounts payable (change)	858	(272)	2,055
Other current liabilities (change)	6,271	425	(4,300)
Dividend income from ATC	7,404	7,146	6,728
Cash contributions to pension and other postretirement plans	(34,765)	(28,857)	(23,670)
Debt make-whole premium	(6,757)	0	0
Other noncurrent items, net	10,845	6,992	(3,876)
Cash Provided by (Used for) Operating Activities	140,267	146,004	130,772
Investing Activities:
Capital expenditures	(119,047)	(98,435)	(65,176)
Capital contributions to investments	(1,660)	(2,419)	(1,008)
Purchase of investment - land	(10)	(3)	(2,152)
Other investing	(1,205)	(496)	1,985
Cash Provided by (Used for) Investing Activities	(121,922)	(101,353)	(66,351)
Financing Activities:
Cash dividends paid on common stock	(37,107)	(35,951)	(35,026)
Repayment of long-term debt	(43,012)	(30,668)	(2,500)
Issuance of long-term debt	85,000	28,000	30,000
Decrease in short-term debt	0	0	(22,500)
Other financing	(770)	(844)	(336)
Cash Provided by (Used for) Financing Activities	4,111	(39,463)	(30,362)
Change in Cash and Cash Equivalents:	22,456	5,188	34,059
Cash and cash equivalents at beginning of period	46,357	41,169	7,110
Cash and cash equivalents at end of period	68,813	46,357	41,169
Supplemental disclosures of cash flow information:
Interest paid	17,991	19,499	19,788
Income taxes paid	8,046	3,544	5,537
Income taxes received	(1,339)	(12,536)	(4,370)
Significant noncash investing activities:
Accrued capital expenditures	$ 9,892	$ 10,317	$ 684