MGE Energy Inc Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating Revenues:
Electric revenues	$ 410,202	$ 420,291	$ 398,132
Gas revenues	134,543	143,737	221,720
Total Operating Revenues	544,745	564,028	619,852
Operating Expenses:
Fuel for electric generation	60,736	53,858	42,828
Purchased power	56,313	81,224	73,232
Cost of gas sold	66,771	76,109	143,644
Other operations and maintenance	167,989	164,478	161,703
Depreciation and amortization	44,646	44,225	40,695
Other general taxes	20,062	19,879	19,652
Total Operating Expenses	416,517	439,773	481,754
Operating Income (Loss)	128,228	124,255	138,098
Other income, net	9,711	8,613	10,079
Interest expense, net	(19,866)	(20,162)	(19,673)
Income before income taxes	118,073	112,706	128,504
Income tax provision	(42,513)	(41,363)	(48,185)
Net Income	$ 75,560	$ 71,343	$ 80,319
Earnings Per Share of Common Stock (basic and diluted)	$ 2.18	$ 2.06	$ 2.32
Dividends per share of common stock	$ 1.21	$ 1.16	$ 1.11
Weighted Average Shares Outstanding (basic and diluted)	34,668	34,668	34,668