Wisconsin gets more sun (3.8 hrs/day) while Wisconsin has the faster payback (9.5 years).Wisconsin offers higher 20-year savings at $30,400.
Wisconsin
3.8 hrs
9.5yr payback
$30,400
20yr savings
Wisconsin
3.8 hrs
9.5yr payback
$30,400
20yr savings
| Metric | Wisconsin | Wisconsin |
|---|---|---|
| Peak Sun Hours | 3.8 hrs | 3.8 hrs |
| Cost per Watt | $3.20 | $3.20 |
| 6kW System Cost | $19,200 | $19,200 |
| Federal Tax Credit | 30% | 30% |
| State Tax Credit | None | None |
| State Rebate | None | None |
| Net Metering | Full Net Metering | Full Net Metering |
| Electricity Rate | 17.38¢/kWh | 17.38¢/kWh |
| Payback Period | 9.5 years | 9.5 years |
| 20-Year Savings | $30,400 | $30,400 |
Wisconsin is the better state for solar ROI with $30,400 in 20-year savings and a 9.5-year payback period. Wisconsin has more sun exposure at 3.8 hrs/day, making it ideal for maximum energy production. Both states qualify for the 30% federal solar tax credit.
Wisconsin gets more sun (3.8 peak hours/day vs 3.8). Wisconsin has a faster payback (9.5 years) and Wisconsin offers higher 20-year savings ($30,400).
A 6kW system costs $19,200 in Wisconsin vs $19,200 in Wisconsin before incentives. Both qualify for the 30% federal tax credit.
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Data verified March 2026 · Source: NREL, DSIRE, EIA