    <SEC-DOCUMENT>0001161728-21-000017-index.html : 20210331
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    <ACCEPTANCE-DATETIME>20210331091817
    ACCESSION NUMBER:		0001161728-21-000017
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		13
    CONFORMED PERIOD OF REPORT:	20210331
    FILED AS OF DATE:		20210331
    DATE AS OF CHANGE:		20210331

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			MGE ENERGY INC
    		CENTRAL INDEX KEY:			0001161728
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC, GAS & SANITARY SERVICES [4900]
    		IRS NUMBER:				392040501
    		STATE OF INCORPORATION:			WI
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-49965
    		FILM NUMBER:		21790304

    	BUSINESS ADDRESS:
    		STREET 1:		133 SOUTH BLAIR STREET
    		STREET 2:		P.O. BOX 1231
    		CITY:			MADISON
    		STATE:			WI
    		ZIP:			53701-1231
    		BUSINESS PHONE:		(608) 252-7000

    	MAIL ADDRESS:
    		STREET 1:		133 SOUTH BLAIR STREET
    		STREET 2:		P.O. BOX 1231
    		CITY:			MADISON
    		STATE:			WI
    		ZIP:			53701-1231
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