Solar Panel Cost in Madison, WI (2026)
Solar panel costs in Madison, WI typically run near the Wisconsin state average. A 6 kW system in Madison costs about $16,450 before the 30% federal ITC, with payback around 9.1 years at local utility rates.
Quick answer
In Madison, a 6 kW solar panel system costs about $16,450 installed (9.1-year payback). After the 30% federal tax credit, net cost is roughly $11,500. Annual savings: ~$1,210/year at 15.5¢/kWh.
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Estimate for Wisconsin
$7,300net after 30% ITC
~4 kW · 10 panels · $10,500 before credits · 15.5¢/kWh
Annual savings
$808
Payback
9 yrs
25-year savings
$21,217
25-year savings timeline
Includes ~3% utility rate growth & 0.5%/yr panel degradation
Madison vs US Average
| Metric | WI | US avg |
|---|---|---|
| 6 kW system (before credit) | $16,450 | $16,271 |
| Net cost after 30% ITC | $11,500 | $11,390 |
| Cost per watt | $0.00/W | — |
| Annual electricity savings | $1,210 | $1,335 |
| Payback period (years) | 9.1 yrs | 9 yrs |
| Electricity rate | 15.5¢/kWh | — |
Updated 2026-07-07. Estimates only.
What affects solar costs in Madison?
Madison metro solar pricing runs near the Wisconsin state average, reflecting local labor, permitting, and installer competition. Solar installation costs in Wisconsin reflect local labor rates, permit fees, and utility interconnection rules. A typical 6 kW system runs $12,210–$21,560 before the 30% federal tax credit, with net cost around $8,550–$15,090.
Madison homeowners should compare at least three local quotes specifying panel brand, inverter type, and production guarantee. Wisconsin averages 15.5¢/kWh and 4.2 peak sun hours per day — moderate solar production potential for rooftop systems.
Utility rules in Wisconsin affect how solar credits apply to your bill — verify net metering or buyback terms for your specific provider serving Madison.
Madison solar ROI depends on Wisconsin electricity rates, local install competition, and roof suitability. Wisconsin install costs average $2.61/W with estimated 9.1-year payback on a 6 kW system — below US national averages.
Madison solar snapshot
- 6 kW system: $12,800 – $22,650
- After 30% ITC: $11,500
- Electric rate: 15.5¢/kWh · Peak sun: 4.2 hrs/day
- Payback: ~9.1 years · Annual savings: ~$1,210
How to maximize solar ROI in Madison
- Compare Madison installer quotes on cost per watt ($/W)
- Check Wisconsin incentives — state guide
- Review how to choose installers in Wisconsin
- Compare at least three installer quotes in Wisconsin
- Model payback using your actual utility rate and usage
Frequently Asked Questions
How much do solar panels cost in Madison?
A 6 kW solar system in Madison, WI typically costs $12,800–$22,650 before incentives, or $11,500 after the 30% federal tax credit.
Is solar worth it in Madison?
With 15.5¢/kWh electricity rates and 4.2 peak sun hours, Madison homeowners often see 9.1-year payback. Use our calculator for your roof and usage.
How does Madison compare to Wisconsin?
Madison install pricing is near the state median in Wisconsin.
Related pages
How We Calculate Solar Costs
MySunROI estimates combine NREL residential PV installed-price benchmarks, EIA state electricity rates, and regional labor modifiers — updated 2026-07-07.
Estimates only. Last updated 2026-07-07. Estimates based on NREL PV cost benchmarks, EIA electricity rates, and 2026 installer pricing surveys.