Updated October 2026 by Wolf River Electric, a Wisconsin solar company with an office in Oshkosh.
Ready for the next step? Learn about solar incentives by state from Wolf River Electric, or get a free quote.
How much do solar panels cost in Wisconsin in 2026?
Solar is priced per watt of panel capacity. We looked at home solar contracts Wolf River Electric signed in Wisconsin from June through October 2026, all roof-mounted systems without a battery, ground mount, trenching or panel upgrade. The middle half came in between $3.00 and $3.30 per watt, with a median of about $3.09. Most systems were 6.5 to 10.5 kW, and the median price was about $24,300.
| System size | Good fit for | Estimated yearly production | Typical price before incentives | After the Focus on Energy rebate |
|---|---|---|---|---|
| 6 kW | Smaller homes, low usage | About 6,900 kWh | $18,000 to $19,800 | $15,600 to $17,400 |
| 8 kW | Average usage, gas heat | About 9,200 kWh | $24,000 to $26,400 | $21,600 to $24,000 |
| 10 kW | Larger homes or an EV | About 11,500 kWh | $30,000 to $33,000 | $27,600 to $30,600 |
| 12 kW | High usage | About 13,800 kWh | $36,000 to $39,600 | $33,600 to $37,200 |
Ranges use $3.00 to $3.30 per watt and the Focus on Energy cap of $2,400, as of October 2026. Production uses about 1,150 kWh per kW per year, a conservative figure for Wisconsin. Our own monitored systems back it up: 202 Wolf River Electric systems in Wisconsin made about 426 kWh per panel from October 2025 to September 2026, so a typical 20 to 30 panel system made about 8,500 to 12,800 kWh a year. Batteries, ground mounts, trenching and panel upgrades add to the price. For comparison, EnergySage’s October 2026 Wisconsin average is $3.04 per watt, or about $40,900 for its typical 13.5 kW system. We size every system from 12 months of your electric bills. See how residential solar panel installation works with Wolf River Electric, from the free quote to turning the system on.
Wisconsin incentives that lower your cost
- Focus on Energy rebate: $600 per kW, up to $2,400, for homeowners who buy their system through a participating utility, as of October 2026. Leased systems do not qualify. Apply within 60 days of the system starting to run, and funding is limited.
- No sales tax: solar equipment is exempt from Wisconsin sales tax.
- No property tax on the added value: the value solar adds to your home is exempt from Wisconsin property tax.
- Net metering: most Wisconsin utilities credit the extra power you send to the grid, but credit rates, size limits and fees vary by utility. See the next section.
See each program in our Wisconsin solar incentives guide. To compare Wisconsin with its neighbors, see our 2026 solar incentives guide for Minnesota, Wisconsin and Iowa.
How do We Energies, WPS, Alliant, MGE and Xcel credit your solar?
Your utility decides what you earn for power your panels send to the grid when you are not using it. Every kWh you use at home as it is made saves you the full retail rate. Only the extra you export depends on the utility’s buyback rules.
| Utility | Where it serves | What to know before you size a system |
|---|---|---|
| We Energies | Milwaukee and much of eastern Wisconsin | Use and production are netted within each billing period. Extra power left over is credited at a lower avoided cost rate, not retail. |
| Wisconsin Public Service (WPS) | Green Bay and northeast and central Wisconsin | Has its own customer-owned generation tariff. We check the current export rate and size limit for your account. |
| Alliant Energy (WPL) | South-central and southern Wisconsin | Has its own tariff, size limits and carryover rules. We check them before we design. |
| Madison Gas and Electric (MGE) | Madison and nearby communities | Has its own tariff and carryover rules. We check them before we design. |
| Xcel Energy | Eau Claire, La Crosse and western Wisconsin | Has its own Wisconsin tariff. We check the current terms before we design. |
Rules can change, so we read your utility’s current tariff before every design. The safest plan is to size the system to the power you use over a year. The more of your solar you use at home, the less the buyback rate matters. Co-ops and city utilities set their own rules too.
What changed in 2026: the federal tax credit
The 30% federal tax credit for homeowner-owned solar ended for systems installed after December 31, 2025. If you buy with cash or a loan in 2026, there is no federal credit. A solar lease or prepaid lease lets the leasing company claim the 30% commercial credit and pass savings to you. Read what changed with the solar tax credit.
What affects the price of your system
- System size: bigger systems cost more in total but usually less per watt.
- Roof or ground mount: a sound roof facing south, east or west is the simplest install. Ground mounts cost more and suit farms and acreages.
- Roof age: if your roof needs replacing within a few years, do it first. Taking panels off and putting them back later adds cost (see the FAQ below).
- Equipment: panel brand, microinverters or a string inverter, and warranties.
- Electrical work: some homes need a main panel upgrade first.
- Battery backup: adds cost and keeps essentials running in an outage. We quote with and without one.
What do battery backup and a standby generator add to the cost?
Winter storms and ice can knock out power in Wisconsin for hours or days. A grid-tied solar system shuts off when the grid goes down, so backup power needs a battery or a generator. These are Wolf River Electric installed prices, as of October 2026:
| Backup option | Installed price | What to know |
|---|---|---|
| Tesla Powerwall 3 | About $12,500 to $20,900 | Stores solar power for nights and outages |
| Enphase IQ Battery 10C | About $11,800 to $19,700 | Includes the automatic transfer switch |
| FranklinWH aPower with aGate (15 kWh) | About $15,400 to $22,000 | Includes the aGate transfer switch |
| Generac home standby generator, 14 to 26 kW | About $13,500 to $17,700 by size | Includes the pad, generator battery, transfer switch, permit and installation. Sales tax and the gas or propane hookup are extra. |
| Electrical panel upgrade, only if needed | About $4,500 to $6,000 | Meter, mast and utility-side work is priced separately |
Battery prices run from the price with a prepaid lease plus our 10% discount (low end) to buying outright (high end). A battery needs no fuel and pairs with solar. A generator runs for days on natural gas or propane. See home battery backup and whole house generator cost for details.
What is the payback on solar in Wisconsin?
Solar pays for itself out of money you already spend on electricity. Here is the math for an 8 kW system at our typical Wisconsin price of about $24,700. It makes about 9,200 kWh a year. At 19.05 cents per kWh, the average Wisconsin home rate for January to August 2026 according to EIA, that power costs about $1,750 a year from the utility.
| How you pay | Net cost | Yearly bill savings | Return on net cost | Solar cost per kWh over 25 years |
|---|---|---|---|---|
| Cash, no rebate | About $24,700 | About $1,750 | About 7.1% | About 10.7 cents |
| Cash plus Focus on Energy | About $22,300 | About $1,750 | About 7.8% | About 9.7 cents |
| Prepaid lease, about 30% off | About $17,300 | About $1,750 | About 10.1% | About 7.5 cents |
Return on net cost is yearly bill savings divided by what you pay. Cost per kWh spreads your net cost over 25 years of production. Compare it with the 19.05 cents you pay the utility now. The prepaid lease row has no Focus on Energy rebate, because leased systems do not qualify.
You are already paying for this power
Most people look at solar as a new expense. It is not. The home in this example will pay the utility about $1,750 a year for this power whether it goes solar or not. Solar replaces it with power from your own roof, so the money you were already going to spend pays for the system instead. Here is what that power costs from the utility over time at today’s rate, before any rate increases:
| Years | Paid to the utility at today’s rate |
|---|---|
| 5 years | About $8,800 |
| 10 years | About $17,500 |
| 15 years | About $26,300 |
| 20 years | About $35,000 |
| 25 years | About $43,800 |
| 30 years | About $52,500 |
Compare those totals with the net cost above: about $24,700 for cash, about $22,300 with Focus on Energy, or about $17,300 with a prepaid lease. Fixed monthly charges stay on your bill, and a utility that credits extra power below retail lowers savings. Higher electric rates raise them. For the full picture, read are solar panels worth it in Wisconsin?
Choosing an installer? Use our checklist for choosing the best solar company in Wisconsin: the license to look up, what to ask, and the red flags to avoid.
Wisconsin solar cost questions
How much do solar panels cost in Wisconsin?
As of October 2026, most Wisconsin homes we install pay about $3.00 to $3.30 per watt before incentives. A typical 8 kW system runs about $24,700, or about $22,300 after the Focus on Energy rebate.
How much does a 10 kW solar system cost in Wisconsin?
Most 10 kW roof-mount systems we install in Wisconsin cost about $30,000 to $33,000 before incentives, or about $27,600 to $30,600 after the Focus on Energy rebate.
What is the payback on solar panels in Wisconsin?
Solar pays for itself out of the power bill you already have. An 8 kW system replaces about $1,750 a year of utility power, or about $43,800 over 25 years at today’s rate. Its net cost is about $22,300 with Focus on Energy or about $17,300 with a prepaid lease, a 7.8% to 10.1% yearly return on net cost. Your design will show your own numbers.
Is there still a solar tax credit in Wisconsin?
Wisconsin has no state solar tax credit, and the federal homeowner credit ended after 2025. The Focus on Energy rebate and the sales and property tax exemptions still apply.
Does Wisconsin have net metering?
Yes, but each utility sets its own rules. We Energies nets use and production within each billing period and credits leftover power at a lower avoided cost rate. WPS, Alliant, MGE and Xcel have their own tariffs. Power you use at home as it is made always saves the full retail rate.
Does a leased system get the Focus on Energy rebate?
No. The rebate is for homeowners who buy their system. A prepaid lease instead passes along savings from the 30% commercial tax credit, which typically takes about 30% off the price.
How much does a solar battery cost in Wisconsin?
As of October 2026, a Tesla Powerwall 3 installed by Wolf River Electric runs about $12,500 to $20,900, an Enphase IQ Battery 10C with its transfer switch about $11,800 to $19,700, and a FranklinWH system with aGate about $15,400 to $22,000. The low end is with a prepaid lease plus our 10% discount, and the high end is buying outright.
What if I need a new roof after solar goes up?
We take the panels off and put them back. As of October 2026, removal runs about $250 per panel and reinstall about $300 to $350 per panel, plus new attachments, racking parts, permits or engineering where needed. See solar panel removal and reinstall. If your roof is near the end of its life, replace it before going solar.
Do solar panels raise property taxes in Wisconsin?
No. The value solar adds to your home is exempt from Wisconsin property tax.
Do solar panels work in a Wisconsin winter?
Yes, but they make far less in December and January. Our Wisconsin systems averaged about 6.7 kWh per panel in December, compared with about 59 in May. Snow usually slides off tilted panels within a few sunny days, and spring and summer carry most of the year.
Get a Wisconsin solar quote built from your bills
Wolf River Electric installs solar panels in Wisconsin, with an office in Oshkosh. Our own licensed crews install solar, batteries and generators across the state, and we handle the Focus on Energy paperwork. Send us 12 months of bills and we will show you the system size, the price and your expected bill savings, with and without a battery. Try the free solar calculator or get my free quote. To compare other tools, see the best solar calculators.
Sources: Wolf River Electric Wisconsin contract data (roof-mount home systems without batteries, June to October 2026); Wolf River Electric systems monitored through Enphase (202 Wisconsin systems, October 2025 to September 2026); EnergySage solar cost data for Wisconsin (October 2026); Focus on Energy; We Energies customer-owned generation billing examples; U.S. EIA Electric Power Monthly (Wisconsin residential average, January to August 2026); Wisconsin Department of Revenue; Wolf River Electric battery, generator, panel upgrade and removal and reinstall pricing as of October 2026 (prices may change without notice).
Going solar in your Wisconsin city
Each city page covers the local utility’s credit rules, permits and 2026 costs: Milwaukee, Madison, Green Bay, Appleton, Oshkosh, Kenosha, Eau Claire, La Crosse, Wausau. Near Eau Claire, see residential solar installation in Altoona, or our page for solar installers in Eau Claire County. Near La Crosse, see residential solar installation in Onalaska. Near Milwaukee, see solar companies in Waukesha County. Or see all Wisconsin service areas.
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