State Overview

Wisconsin

National Solar Capacity Ranking: 19th

National Storage Capacity Ranking: 15th

Updated May 2026

 

Wisconsin State Solar Overview

 

Wisconsin Major Solar and Storage Projects

SEIA’s Major Solar Projects List is a database of all U.S. ground-mounted solar projects, 1 MW and above, that are either operating, under construction or under development.

Official SEIA State Affiliate

 

 

Just The Facts

  • Solar Capacity:

    3,492 MWdc

  • Storage Capacity

    1,150 MWh

  • National Solar Ranking:

    19th (19th in 2025 additions)

  • Enough Solar Installed to Power:

    583,415 homes

  • Percentage of State's Electricity from Solar:

    6.62%

  • Solar Jobs:

    3,302

  • Solar and Storage Companies in State:

    180 (55 Manufacturers, 72 Installers/Developers, 53 Others)

  • Total Solar Investment in State:

    $4.6 billion

  • Growth Projection and Ranking:

    3,523 MW over the next 5 years (ranks 13th)

  • Number of Solar Installations:

    21,157

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Wisconsin State Solar Policy Resources

 

 

Wisconsin Energy Storage Policy and Market Overview

The energy storage market in Wisconsin is youthful and developing. Utility actions and swift regulatory approval are leading deployment. Wisconsin’s energy storage and solar markets are heavily integrated and positioned for long-term complimentary growth.

Wisconsin regulators and utilities are working to provide a robust solar-plus-storage capacity. As of 2023, the PSC approved 488 MW of grid-scale battery energy storage, and an additional 617 MW is awaiting review. Currently, all grid-scale battery storage is on-site with solar-PV. Net metering configuration in the state incorporates battery storage as a supplemental compensation to solar-PV, encouraging an intrinsic market relationship between the two technologies.

State funded grant programs and net metering are successfully providing financial assistance for community and residential deployment. While the energy storage market is growing, program design codifying key principles like equity, and BTM and FTM incentives can forge a competitive storage market in Wisconsin.

Wisconsin Energy Storage Policy Resources

 

 

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