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CLEANER ENERGY

MGE continues to grow its use of carbon-free energy resources.

MGE's Sunnyside Solar Energy Center will be our first local solar project to include battery storage. The solar facility, under construction in Fitchburg, will include 40 megawatts (MW) of four-hour battery storage. The batteries will help to ensure reliability during times when energy demand is greatest and when renewable capacity is insufficient to meet all customer needs. 

Sunnyside's 20 MW of solar capacity will provide enough electricity to power about 6,000 households annually. The solar array is expected to begin serving customers this summer while the battery storage is expected online in 2027. 

Sunnyside will join several MGE solar facilities in Fitchburg already serving customers: 

• Strix Solar is a 6-MW facility that came online in early 2025. The project serves all MGE electric customers with locally generated, carbon-free energy. Two megawatts of the project serve Shared Solar–Strix, a community solar program from MGE.
• Tyto Solar is a 6-MW solar array that came online in early 2024. Tyto Solar serves all MGE electric customers.
• MGE's 22-MW O'Brien Solar Fields came online in 2021. This project provides solar energy to several large customers through separate Renewable Energy Rider agreements.

Working toward net-zero carbon electricity 

MGE is working to reduce carbon as quickly, responsibly and cost-effectively as we can. With our current plans, by 2030, we will have added more than 40 renewable generation and battery storage projects since 2015, propelling us toward our goal of net-zero carbon electricity by 2050. 

Growing our use of cost-effective, cleaner energy and working with customers to advance energy efficiency and the electrification of transportation are all key strategies for deep decarbonization.