Are Solar Panels Worth It in Wisconsin?
Last updated July 1, 2026 · based on Wisconsin energy prices
In Wisconsin, where residential electricity averages about 17¢/kWh and rooftop solar yields roughly 1,300 kWh per kW per year, solar has a longer payback here (about 17.8 years) because sunlight is more limited — it makes the most sense if your rate is rising or you value energy independence.
Wisconsin solar cost & savings (typical 7 kW system)
| Metric | Estimate |
|---|---|
| Annual production | 9,100 kWh |
| Installed cost (before incentives) | $21,000 |
| Estimated annual savings | $1,183 |
| Payback period | 17.8 years |
| 25-year net savings | +$6,867 |
Figures use Wisconsin average prices, a 7 kW system at $3.00/watt, 50% self-consumption at retail plus a conservative 9¢/kWh net-metering credit, and ~0.5%/yr panel degradation. Sources: EIA electricity prices and NREL PVWatts production modeling.
What this means for Wisconsin homeowners in 2026
The 30% federal residential solar tax credit (Section 25D) expired December 31, 2025, so a 2026 installation in Wisconsin carries the full upfront cost unless a state or utility incentive applies. Because Wisconsin electricity costs around the national average, the payback case is more marginal — strongest for high electricity users, south-facing roofs, and homeowners who plan to stay long term.
Frequently asked questions
Are solar panels worth it in Wisconsin in 2026?
At Wisconsin's electricity price of 17¢/kWh, a typical 7 kW system saves about $1,183 per year and pays for itself in roughly 17.8 years. There is no federal solar tax credit in 2026 (Section 25D expired December 31, 2025), so these figures reflect bill savings and net metering only.
How much do solar panels cost in Wisconsin?
A 7 kW system costs roughly $21,000 installed at about $3.00/watt before any state or utility incentive. Costs vary by installer, equipment, and roof complexity.
How much electricity will solar produce in Wisconsin?
About 1,300 kWh per year per kW installed in Wisconsin, so a 7 kW system produces roughly 9,100 kWh/year. Your exact output depends on roof orientation, tilt, and shading.
Estimates based on Wisconsin average energy prices and a simplified model; your results will vary. Energy prices and incentives change frequently. Not financial advice.