MGE Energy Issues First-Quarter Financial Update

MADISON, Wis.–(BUSINESS WIRE)–MGE Energy, Inc. (Nasdaq: MGEE) today issued its first-quarter 2018
financial update presentation.

The update is available on MGE Energy's website at:

https://www.mgeenergy.com/financialupdate

About MGE Energy

MGE Energy is an investor-owned public utility holding company
headquartered in the state capital of Madison, Wis. It is the parent
company of Madison Gas and Electric, which generates and distributes
electricity in Dane County, Wis., and purchases and distributes natural
gas in seven south-central and western Wisconsin counties. MGE Energy's
assets total approximately $1.9 billion, and its 2017 revenues were $563
million.

Contacts

MGE Energy, Inc.
Investor relations contact
Ken
Frassetto
Director – Shareholder Services and Treasury Management
608-252-4723
| [email protected]