Wisconsin Solar Incentives & Policy Guide (2026)
Written by Aditya Patil · Last updated 2026-09-24
Going solar in Wisconsin offers a solid opportunity to offset electricity costs, backed by state-level tax exemptions and Focus on Energy rebates. While compensation for surplus power depends heavily on your specific utility, these local incentives help lower the upfront barrier to entry.
$126
Avg. monthly bill
19.56¢/kWh
Avg. rate
Up to $2,400
Focus on Energy Rebate
For eligible systems
100%
Tax exemptions
Sales & property tax
Wisconsin solar incentives & rebates
Wisconsin homeowners can take advantage of several localized incentives to reduce the cost of a new solar array. The standout program is Focus on Energy, alongside full exemptions from both state sales tax and the resulting property tax increase.
| Program | Amount | Status |
|---|---|---|
| Focus on Energy — Residential Solar Rebate | $600 per kW of solar installed, up to a maximum cap of $2,400 per residential customer. | open |
| Wisconsin Solar Property Tax Exemption | 100% exemption of the added value of a solar energy system from the property's assessed value. | open |
| Wisconsin Solar Sales and Use Tax Exemption | 100% exemption from state sales and use tax for qualifying solar energy systems. | open |
Net metering and exporting power
In Wisconsin, there is no uniform statewide net metering rate. The Public Service Commission of Wisconsin (PSCW) governs interconnection under Chapter PSC 119 and requires investor-owned and municipal utilities to offer net metering (typically for systems up to 20 kW). However, the PSCW allows each utility to establish its own specific tariffs and compensation methods. As a result, compensation for exported solar energy varies significantly among providers.
Because Wisconsin lacks a standardized net metering mandate, the return on your solar investment will heavily depend on where you live. While the Public Service Commission of Wisconsin (PSCW) oversees interconnection, individual utilities dictate the credit rates.
| Policy | Varies by utility (no uniform statewide rate) |
| Regulatory body | Public Service Commission of Wisconsin (PSCW) |
| System size limit | Typically up to 20 kW for investor-owned utilities |
| Madison Gas & Electric | Retail-rate net metering (unless net seller) |
| We Energies | Avoided energy cost rate (below retail) |
Export rates vary by utility. For example, Madison Gas & Electric generally offers retail-rate net metering unless you become a 'net seller' (producing more than you consume over 12 months), at which point exports are credited at a lower wholesale rate. In contrast, We Energies compensates excess generation at an avoided energy cost rate, which is lower than the retail price. Credits typically roll over monthly.
Top utilities in Wisconsin
Utility electricity rates play a massive role in solar savings. Wisconsin's average residential rate sits at 19.56¢/kWh, but what you actually pay depends on your provider. Below are a few of the state's largest utilities and their residential pricing structures.
| Utility | Residential rate | Customers |
|---|---|---|
| Wisconsin Electric Power Co | 19.23¢/kWh | 1,048,148 |
| Wisconsin Power & Light Co | 16.89¢/kWh | 437,211 |
| Wisconsin Public Service Corp | 16.23¢/kWh | 411,775 |
Residential rate and customer counts are from EIA-861 (see Data sources below).
Lease vs. buy in Wisconsin
Because the residential federal tax credit phased down to 0% at the end of 2025, purchasing a system outright in 2026 relies purely on state incentives like the Focus on Energy rebate. However, third-party owners (like lease or PPA providers) can still claim the commercial federal credit (§48E) and pass portions of those savings onto you through lower monthly payments. Review our lease vs. buy vs. PPA guide to determine which financing path makes the most sense.
Estimate your own numbers
Use our solar calculator with your own usage and any quote you've received to see customized payback estimates.
FAQ
Does Wisconsin offer a solar rebate?
Yes. The Focus on Energy program provides a residential rebate of $600 per kW installed, up to a maximum of $2,400. You must be a customer of a participating utility and use a Trade Ally contractor.
Is solar exempt from sales and property taxes in Wisconsin?
Yes. Wisconsin offers a 100% sales and use tax exemption for qualifying solar components, as well as a 100% property tax exemption on the added home value from your solar installation.
How does net metering work in Wisconsin?
There is no single statewide net metering policy. The Public Service Commission of Wisconsin requires utilities to offer interconnection, but compensation rates vary. For example, Madison Gas & Electric generally provides retail-rate net metering, whereas We Energies credits excess generation at a lower avoided cost rate.
Data sources
Last updated 2026-09-24
- U.S. Energy Information Administration — Electricity Data Browser — accessed 2026-09-24
- NREL PVWatts — accessed 2026-09-24
- NREL Solar Resource Data — accessed 2026-09-24
- LBNL Tracking the Sun (public data file, host-owned residential systems) — accessed 2026-09-24
Written by Aditya Patil