WI incentive guide
Wisconsin solar incentives in 2026
Last updated · every WI program below is verifiable against the sources at the foot of this page.
The most valuable solar incentive in Wisconsin right now is Focus on Energy statewide rebate. Overall, the state's incentive stack rates as strong compared with the rest of the country.
The federal credit is gone — start here
The 30% federal residential clean energy credit (Section 25D) ended for systems installed after December 31, 2025. If you are buying a system in Wisconsin this year, there is no federal credit. That is a roughly $8,040 swing on an $26,800 system compared with 2025 pricing, and it is why state programs matter more now than they did a year ago.
What Wisconsin offers at a glance
| Incentive | Available? | Details |
|---|---|---|
| State income tax credit | No | — |
| Rebate or performance payment | Yes | Focus on Energy residential solar rebates, historically several hundred to a few thousand dollars, income-tiered |
| SREC market | No | — |
| Sales tax exemption | Yes | Qualifying solar equipment is exempt from state sales tax. |
| Property tax exemption | Yes | The value solar adds to the home is excluded from property tax assessment. |
| Federal tax credit | No | Section 25D ended for systems installed after December 31, 2025. |
Reviewed September 2026. Incentive programs change frequently and several are funding-capped — verify current status with the administering agency or DSIRE before relying on any figure.
Wisconsin solar tax credit
There is no Wisconsin solar tax credit in 2026, and no federal one either — Section 25D ended for systems installed after December 31, 2025. What Wisconsin does offer on the tax side is sales and property tax exemptions, covered below.
Wisconsin solar rebates and grants
Focus on Energy residential solar rebates, historically several hundred to a few thousand dollars, income-tiered. Rebate and grant programs are funding-limited and have opened and closed mid-year before, so confirm the current round is open before counting on it.
Focus on Energy offers statewide residential solar rebates (historically several hundred to a few thousand dollars, income-tiered). Sales and property tax exemptions apply.
Net metering and export rates in Wisconsin
Wisconsin has no single statewide standard; each utility files its own net metering or buyback tariff, with many crediting monthly excess below retail.
Compare this with net metering in every other state.
Export rules deserve to be read as an incentive. In a retail net metering state, every exported kilowatt-hour is worth the full retail rate; under net billing or avoided-cost compensation, the same kilowatt-hour can be worth a third of that. For a Wisconsin home at an assumed $0.17/kWh, that difference compounds across a 25-year system life.
What this means for your numbers
A typical 8 kW system in Wisconsin costs roughly $20,400–$26,800 installed before incentives, producing about 9,760 kWh a year and saving around $1,367 in year one — a simple payback near 15–20 years with no incentives applied. Anything in the table above shortens that.
Frequently asked questions
What are Wisconsin solar tax credits worth in 2026?
Wisconsin offers no residential solar income tax credit in 2026, and the 30% federal credit ended for systems installed after December 31, 2025. What remains on the tax side is sales and property tax exemptions, which lower cost indirectly rather than paying you back.
Does Wisconsin have solar rebates?
Yes. Focus on Energy residential solar rebates, historically several hundred to a few thousand dollars, income-tiered. Rebate programs in WI are funding-limited and have historically opened and closed mid-year, so confirm the current round is still accepting applications before you count the money.
Is there a Wisconsin solar property tax exemption?
Yes. Wisconsin excludes the value solar adds to a home from property tax assessment, so a system that raises your home's value does not raise your annual tax bill. Wisconsin also exempts qualifying solar equipment from state sales tax, which comes straight off the installed price.
What solar incentives are available in Wisconsin in 2026?
Focus on Energy offers statewide residential solar rebates (historically several hundred to a few thousand dollars, income-tiered). Sales and property tax exemptions apply. Because the federal Section 25D credit ended for systems installed after December 31, 2025, these state, local and utility programs are now the entire incentive picture for a purchased system.
Is there still a 30% federal solar tax credit in Wisconsin?
No. The 30% federal residential clean energy credit (Section 25D) ended for systems installed after December 31, 2025 under the One Big Beautiful Bill Act. Any quote or website still applying 30% to a 2026 purchased installation is out of date. Leased and PPA systems can still benefit indirectly, because the third party that owns the system may claim the commercial 48E credit through 2027 and pass some of the value through in pricing.
Does Wisconsin have net metering?
Wisconsin has no single statewide standard; each utility files its own net metering or buyback tariff, with many crediting monthly excess below retail. Export rules are effectively an incentive — often the largest one — because they set what every kilowatt-hour you do not use on site is worth.
How much do incentives change the cost of solar in Wisconsin?
Before incentives, a typical 8 kW system in Wisconsin runs roughly $20,400–$26,800. Focus on Energy residential solar rebates, historically several hundred to a few thousand dollars, income-tiered — the value depends on current funding. See our full Wisconsin cost breakdown for payback math.
Verify before you rely on any of this
Incentive programs open, close, deplete their funding and change their caps — often mid-year. This page is a starting point reviewed September 2026, not tax advice. Confirm with: