Plug-In Solar in Wisconsin — Status: unclear
Last Updated: March 2026
Key Information
| Average Electricity Rate | 17.2¢/kWh |
| Estimated Annual Savings | $205/year |
| TOU Rate Spread | 5¢/kWh |
| Peak Sun Hours/Day | 4.3 |
| Retail Choice | none |
What You Can Do
No specific plug-in solar law. Wisconsin has strong net metering. We Energies and Xcel Energy offer solar programs.
What You Can't Do (Yet)
Utilities require interconnection agreements for grid-tied systems.
Available Rebates & Incentives
Focus on Energy offers solar rebates for Wisconsin homeowners (through We Energies and other participating utilities). Net metering available through We Energies and Xcel Energy. The federal 30% ITC (Section 25D) expired December 31, 2025.
Incentive Program Links
- Focus on Energy — Solar Rebates — Solar rebates for Wisconsin homeowners through participating utilities.
- DSIRE — Wisconsin Solar Incentives — Full list of Wisconsin state and utility solar incentive programs.
Demographics (US Census 2023)
| Population | 5,960,975 |
| Total Households | 2,479,480 |
| Owner-Occupied | 1,681,494 |
| Renter-Occupied | 797,986 |
| Single-Family Homes | 1,843,720 |
| Apartment Units (5+) | 480,883 |
| Median Household Income | $77,485 |
| Median Home Value | $266,500 |
Solar Resource Data (NREL PVWatts)
| Peak Sun Hours/Day | 4.5 |
| Optimal Tilt Angle | 20° |
| Optimal Azimuth | 180 |
| Est. Annual kWh (800W system) | 1063 kWh |
| Best Solar Months | July, May, June, August, April |
Major Utilities
| Utility | Customers | Net Metering |
|---|---|---|
| We Energies | ~1,100,000 electric customers | Yes |
| Northern States Power Company d/b/a Xcel Energy | ~265,000 electric customers | Yes |
| Madison Gas and Electric | ~167,000 electric customers | Yes |
| Wisconsin Public Service Corporation | ~474,000 electric customers | Yes |