MGE Energy, Inc., through its subsidiaries, operates as a public utility holding company in the United States. It operates through Regulated Electric Utility Operations; Regulated Gas Utility Operations; Nonregulated Energy Operations; Transmission Investments; and All Other segments. The company generates, purchases, and distributes electricity; purchases and distributes natural gas; owns and leases electric generating capacity; and plans, constructs, operates, maintains, and expands transmission facilities to provide transmission power services. It also generates electricity from coal-fired, gas-fired, and renewable energy sources; and provides solar and wind generation, and battery storage services.
