UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549
SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Amendment No. 1
	Filed by registrant: ☒    Filed by a Party other than the Registrant:☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy Statement ☐ Definitive Additional Materials ☐ Soliciting Material under §240.14a-12 MGE Energy, Inc. (Name of Registrant as Specified In Its Charter) (Name of Person(s) Filing Proxy Statement, if other than the Registrant) Check the appropriate box: ☒ No Fee Required ☐ Fee paid previously with preliminary materials ☐ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a6(i)(1) and 0-11

EXPLANATORY NOTE

MGE Energy, Inc. (the "Company") is filing the attached proxy card to amend the Company's Definitive Proxy Statement on Schedule 14A (the "Proxy Statement") that was filed with the Securities and Exchange Commission on April 4, 2025, because the proxy card was inadvertently omitted from the original filing. This proxy card should be reviewed together with the Proxy Statement.