Best Solar Companies in Wisconsin 2023

Choosing the right solar installation company is probably the most important decision in your solar panel investment. When you’re looking for the best solar installer in Wisconsin, it can be overwhelming.

How do you know you’re choosing the right solar company? Like any other industry, the solar industry has its fair share of fast-talking salespeople, high-pressure tactics, and inflated performance claims.

So, we created an honest list of the best solar companies based on several different factors. We wanted a brutally honest top ten because you, as a consumer, deserve to trust where your money goes.

Note: ZERO of these companies paid us to be on this list. This list is our unbiased take on the best solar companies in WI.

Best Residential Solar Companies in Wisconsin

Full Spectrum Solar

Madison, WI

All Energy Solar

Madison, WI

Sun Badger Solar

Milwaukee, WI

Arch Electric

Plymouth, WI

Energy Concepts

Hudson, WI

Drews Solar

Madison, WI

Ethos Green Power

Viroqua, WI

Olson Solar Energy

Onalaska, WI

Everlight Solar

Verona, WI


Milwaukee, WI

How We Calculated the Top Solar Installers

We combed the web and did a deep dive into all the solar companies in Wisconsin. We read and averaged reviews from multiple websites, dug up warranties, accreditations, financing options, product options, experience, employee satisfaction, and more.

We looked at the following factors:

  • Reviews
  • Do they have NABCEP accreditation?
  • Do they have BBB accreditation?
  • How do their warranties look?
  • Do they offer financing options?
  • Do they offer product options?
  • Do they use quality products?
  • How long have they been in business?
  • How many customers have they serviced?
  • How many employees do they have?
  • How is their employee satisfaction?
  • Company website

How to Choose the Top Solar Installer

  • Read up on the solar installer’s reviews and client testimonials
  • Find out about the warranties offered
  • Check the solar installer’s credentials and accreditations
  • Ask for the turnaround time
  • Look for customized solutions
  • Decide whether you want a national or local solar installation company.
  • Get multiple quotes. Get a quote from at least 3 solar companies.

Wisconsin Solar Energy Incentives

Federal ITC
Wisconsin residents can take advantage of the 30% federal investment tax credit (ITC). A tax credit is a dollar-for-dollar reduction in your total income tax liability. If your system costs $10,000, you could claim a $3000 credit on the federal taxes you owe.  The tax credit carries forward multiple years in case your federal tax liability is low.

Other solar financial incentives to look for (not available in every state):

  • State tax credits
  • Net metering
  • SRECs – Solar Renewable Energy Certificates
  • Utility companies sometimes offer incentives
  • City and county-level incentives
  • Tax exemptions – sales and property value increase

How Much Do Solar Panels Cost in Wisconsin?

The average cost of a 5kW solar panel system (including installation) in Wisconsin $14,125, and $10,453 after the federal tax credit. 

Average payback period: 12 years
Average 20-year savings: $16,000

Factors that determine your total cost

  • Size of the system
  • Equipment
  • Solar installation company
  • Solar incentives, tax credits, and rebates
  • Solar financing options
  • Payback period
  • Electricity rates in WI
  • Roof condition
  • Costs by city
  • Home value increase

Wisconsin Solar Energy Facts

  • Solar Installed (MW): 1,128
  • Enough Solar Installed to Power: 182,187 homes
  • National Ranking: 23rd (15th in 2021)
  • Percentage of State’s Electricity from Solar: 1.6%
  • Solar Jobs in WA: 2,942

Data current through Q3 2022