<SEC-DOCUMENT>0001161728-21-000019-index.html : 20210331
<SEC-HEADER>0001161728-21-000019.hdr.sgml : 20210331
<ACCEPTANCE-DATETIME>20210331092306
ACCESSION NUMBER:		0001161728-21-000019
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		2
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:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-49965
		FILM NUMBER:		21790333

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>f20200331_defa-14a_addition.htm
<DESCRIPTION>FORM DEFA 14A
<TEXT>
Document 1 - file: f20200331_defa-14a_addition.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>f20200331defa14aaddition1.jpg
<DESCRIPTION>NA
<TEXT>
Document 2 - file: f20200331defa14aaddition1.jpg

</DOCUMENT>
</SEC-DOCUMENT>