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Wisconsin · WI

Solar Panels in Wisconsin:
Is It Worth It in 2026?

Wisconsin averages 1289 kWh per kWp per year with 4.4 peak sun hours per day. At 18.2¢/kWh, an 8 kW system saves roughly $1,877/year and pays back in about 8.1 years.

Wisconsin Solar at a Glance

Peak sun hours / day4.4 hrs
Avg solar yield1289 kWh/kWp/yr
Electricity rate18.2¢ / kWh
Avg payback (8 kW)8.1 years
Annual savings (8 kW)$1,877/yr
Net meteringFull retail net metering ✓

EIA data updated: April 11, 2026 · EIA, PVGIS v5.3

Solar Incentives in Wisconsin

Federal ITC
30%

The 30% federal solar tax credit (Section 25D) expired December 31, 2025. Cash and loan purchases no longer qualify. State incentives below still apply.

State Programs
Rebates & Exemptions

Focus on Energy rebates ($500–1,500), We Energies/Xcel net metering, sales tax exempt

Total Savings
Varies

Utility rebates, exemptions, and net metering still apply. Federal ITC expired Dec 2025. Plus sales tax exemption. Property value increase is tax-exempt.

All Available Incentives in Wisconsin

Federal ITC (Section 25D) — Expired December 31, 2025 — no longer available for residential cash/loan
Sales Tax Exemption — Solar equipment is sales-tax exempt
Property Tax Exemption — Solar-added home value not taxed
Net Metering — Full retail net metering ✓

How Much Solar Power Do Wisconsin Cities Get?

Real PVGIS yield data and EIA electricity rates for all 4 cities. Click any city for detailed payback calculations.

Milwaukee
1294 kWh/kWp · 8 yr payback
Madison
1300.7 kWh/kWp · 8 yr payback
Green Bay
1268.8 kWh/kWp · 8.2 yr payback
Kenosha
1292.6 kWh/kWp · 8 yr payback
Personalized estimate

Enter your monthly bill — get exact payback numbers for Wisconsin.

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All Wisconsin incentives

Full breakdown of credits, rebates, net metering, and SREC programs.

Incentives

Solar in Wisconsin: Frequently Asked Questions

Is solar worth it in Wisconsin?
Generally yes — solar makes financial sense in Wisconsin for most homeowners. The 8.1-year payback is near the national average. At 18.2¢/kWh, annual savings on an 8 kW system run approximately $1,455. Wisconsin's Focus on Energy program offers $500 cash rebates per installation. Net metering at the retail rate through 2024.
What solar incentives are available in Wisconsin?
Wisconsin homeowners can stack multiple incentives: the state solar incentives (federal ITC expired Dec 2025) (ITC) — $6,480 on a typical 8 kW system; a property tax exemption (solar-added home value not taxed); sales tax exemption on solar equipment; and net metering through We Energies / Alliant Energy. Wisconsin's Focus on Energy program offers $500 cash rebates per installation. Net metering at the retail rate through 2024.
How much electricity do solar panels produce in Wisconsin?
Wisconsin averages 1289.0 kWh per kWp of solar per year — 14% below the US average. An 8 kW system produces roughly 10,312 kWh/year, with a monthly average of 107.4 kWh/kWp. Output varies by location: southern Wisconsin produces more than the north.
How much do solar panels cost in Wisconsin?
The average 8 kW system in Wisconsin costs approximately $21,600.0 before incentives. After the 30% federal ITC ($6,480), your net cost is around $15,120. Prices range from $2.40–$3.20/watt installed depending on installer, panel brand, and cold winters, Great Lakes cloud cover reduces Nov–Mar output.

Going Solar in Wisconsin: Step by Step

From first quote to first kilowatt — here is the typical timeline for a residential solar installation in Wisconsin. Most homeowners complete this process in 6–12 weeks.

  1. 1
    Get 3 quotes

    Prices in Wisconsin average $22,400 for an 8 kW system before incentives. Getting three quotes typically saves 10–15%. Use the same system size so you can compare apples to apples.

  2. 2
    Review your electricity bill

    Your last 12 months of usage determines the right system size. At 18.2¢/kWh in Wisconsin, a system that offsets 90% of your bill hits the best cost-per-kWh sweet spot.

  3. 3
    Check state incentives

    Wisconsin does not have a statewide solar tax credit, but utility rebates and net metering may still apply. Focus on Energy rebates ($500–1.

  4. 4
    Sign contract & apply for permits

    Your installer pulls the building permit and files interconnection paperwork with your utility. Permit approval in Wisconsin typically takes 1–4 weeks depending on your county.

  5. 5
    Installation day

    A standard 8 kW residential installation takes 1–2 days. Racking goes on first, then panels, then the inverter is wired to your main panel. The crew usually keeps the power on throughout.

  6. 6
    Utility inspection & interconnection

    After installation your utility inspects the system and approves grid connection. This final step can take 1–3 weeks. Once approved, your meter tracks both import and export.

Data summary for Wisconsin: Wisconsin averages 1289.0 kWh/kWp/year with 4.4 peak sun hours/day. Electricity costs 18.2¢/kWh. An 8 kW solar system saves ~$1,877/year and pays back in 8.1 years. Focus on Energy rebates ($500–1,500), We Energies/Xcel net metering, sales tax exempt.