17 Best Solar Companies in Koshkonong, WI (2023 Reviews)

We analyzed over 1500 solar companies in the nation,
and have selected the top 17 in Koshkonong based on:

  • Customer review scores
  • Service area for Koshkonong, WI
  • Company policies and services offered
  • Accreditations and certifications

Average Koshkonong homeowner saves $1,632/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated May 04, 2023

Why you can trust EcoWatch

We work with a panel of solar experts to create unbiased reviews that empower you to make the right choice for your home. No other site has covered renewables as long as us, which means we have more data and insider information than other sites. Our rankings are never affected by revenue or partnerships.

Best Solar Companies in Koshkonong

Looking for energy freedom in Koshkonong? Installing solar panels can be a rewarding investment since there are lots of perks after adopting solar power. On average, you can save $19,000 over 20 years with solar panels. And because solar panels have a lifespan of about 25 to 30 years, your total cost savings will be even more than that overall.

As you set out on your search for the best solar companies in Koshkonong, you might notice that there are a great number of providers to choose from. So, we've put together a carefully curated list of the top solar companies in the area. To get free quotes from the top-rated solar companies in Koshkonong, click the "get quote" button below.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best for Leasing

Sunrun

★★★★★
4.0

  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

Best Social Impact

Palmetto Solar

★★★★★
4.0

  • Expansive service area
  • Makes charitable contributions
  • Certified B Corp
  • No leases or PPAs
  • Quality of installation may vary by location

EcoWatch Rankings for Solar Companies in Koshkonong

Best National Provider
ecowatch badge icon

EcoWatch Rating

5.0/5

Average Cost

Read full review

SunPower

  • Pros icon Most efficient panels on the market
  • Pros icon National coverage
  • Pros icon Cradle to Cradle sustainability certification
  • Pros icon Great warranty coverage
  • Con icon Expensive
  • Con icon Customer service varies by local dealer

Services Offered

  • Service icon Solar Panels
  • Service icon Solar Batteries
  • Service icon EV Chargers
  • Service icon System Monitoring

Website: https://us.sunpower.com/
Best Local Installer
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EcoWatch Rating

4.0/5

ilumen Solar

  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Recognized Excellence
  • Pros icon Outstanding Customer Support
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Home installations
  • Service icon Integrated roofing
  • Service icon Energy storage solutions
  • Service icon Expert panel installation
  • Service icon Skilled repairs
  • Service icon Business installations
  • Service icon Tailored solutions

Website: https://www.ilumen-solar.com/
Address: 27948 N Kelsey Rd, Barrington, IL 60010
Phone: 8478523370
Best for Leasing
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EcoWatch Rating

4.0/5

Average Cost

Sunrun

  • Pros icon Expansive service area
  • Pros icon Many financing options
  • Con icon Some reported issues with customer service
  • Con icon Some reported issues with door-to-door sales

Services Offered

  • Service icon Solar Panels
  • Service icon Solar Batteries
  • Service icon EV Chargers
  • Service icon Energy-Efficiency Upgrades

Website: https://www.sunrun.com/
Best Social Impact
ecowatch badge icon

EcoWatch Rating

4.0/5

Average Cost

Palmetto Solar

  • Pros icon Expansive service area
  • Pros icon Makes charitable contributions
  • Pros icon Certified B Corp
  • Con icon No leases or PPAs
  • Con icon Quality of installation may vary by location

Services Offered

  • Service icon Solar Panels
  • Service icon Solar Batteries
  • Service icon Energy-Efficiency Upgrades
  • Service icon Maintenance & Repairs

Website: https://palmetto.com/
Best Technology
ecowatch badge icon

EcoWatch Rating

3.2/5

Average Cost

Read full review

Tesla Energy

  • Pros icon Price-match guarantee
  • Pros icon Sleek, efficient, and durable solar panels
  • Pros icon Best solar battery on the market
  • Con icon Some reported issues with customer service
  • Con icon Customer service varies by local dealer

Services Offered

  • Service icon Solar Panels
  • Service icon Solar Batteries
  • Service icon EV Chargers
  • Service icon Solar Roof Shingles
  • Service icon System Monitoring

Website: https://www.tesla.com/energy
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Ameresco Inc.

  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Pros icon Recognized Excellence
  • Pros icon Outstanding Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Energy storage solutions
  • Service icon Expert panel installation
  • Service icon Integrated roofing
  • Service icon Home installations
  • Service icon Business installations
  • Service icon Tailored solutions

Website: https://www.ameresco.com/
Address: 525 Black Bridge Rd, Janesville, WI 53545
Phone: 6087561666
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Janesville Home & Solar

  • Pros icon Outstanding Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Expert panel installation
  • Service icon Integrated roofing
  • Service icon Tailored solutions
  • Service icon Home installations

Website: https://janesvillehomesolar.com/
Address: 126 Forest Park Blvd, Janesville, WI 53545
Phone: 6084494376
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Agsun Corporation

  • Pros icon Clear Pricing Policy
  • Pros icon Family-Operated Business
  • Pros icon Prompt Service Delivery
  • Con icon Limited information available on website

Services Offered

  • Service icon Tailored solutions
  • Service icon Business installations
  • Service icon Home installations

Website: http://agsuncorp.com/
Address: 1321 S Jackson St, Janesville, WI 53546
Phone: 6087568633
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Synergy Renewable Systems, LLC

  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Outstanding Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Home installations
  • Service icon Expert panel installation
  • Service icon Energy storage solutions
  • Service icon Tailored solutions
  • Service icon Business installations

Website: http://www.synergysolar.com/
Address: 335 Industrial Cir, Stoughton, WI 53589
Phone: 6087127862
Outstanding Local Installer
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EcoWatch Rating

3.0/5

All Energy Solar

  • Pros icon Informative Resources
  • Pros icon Outstanding Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Integrated roofing
  • Service icon Home installations
  • Service icon End-to-end services
  • Service icon Business installations
  • Service icon Expert panel installation
  • Service icon Tailored solutions
  • Service icon Energy storage solutions

Website: http://allenergysolar.com/
Address: 5 Marsh Ct, Madison, WI 53718
Phone: 8006203370
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Arch Solar

  • Pros icon Informative Resources
  • Pros icon Outstanding Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Home installations
  • Service icon Energy storage solutions
  • Service icon Business installations
  • Service icon Expert panel installation
  • Service icon Tailored solutions

Website: https://archelec.com/archsolar/
Address: 2302 Vondron Rd, Madison, WI 53718
Phone: 6089493429
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Epic Electric and Solar Inc.

  • Pros icon Outstanding Customer Support
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Home installations
  • Service icon Tailored solutions
  • Service icon Expert panel installation
  • Service icon Business installations

Website: http://www.epicelectricmadison.com/
Address: 2623 S Stoughton Rd, Madison, WI 53716
Phone: 6084225133
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Greentech Renewables Madison

  • Pros icon Informative Resources
  • Pros icon Outstanding Customer Support
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Business installations
  • Service icon Home installations
  • Service icon Energy storage solutions
  • Service icon Tailored solutions
  • Service icon Expert panel installation

Website: https://www.greentechrenewables.com/location/madison-wi
Address: 4502 Helgesen Dr, Madison, WI 53718
Phone: 6084005700
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Sun Prairie Utilities

  • Pros icon Clear Pricing Policy
  • Pros icon Recognized Excellence
  • Pros icon Informative Resources
  • Pros icon Outstanding Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Tailored solutions
  • Service icon Home installations

Website: http://www.sunprairieutilities.com/
Address: 125 W Main St, Sun Prairie, WI 53590
Phone: 6088375500
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Madison Solar Panels

  • Pros icon Outstanding Customer Support
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Home installations
  • Service icon Business installations
  • Service icon Expert panel installation
  • Service icon Tailored solutions

Website: https://solarmadison.org/
Address: 4202 Commercial Ave, Madison, WI 53714
Phone: 2622173693
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Midwest Solar Power

  • Pros icon Outstanding Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Integrated roofing
  • Service icon End-to-end services
  • Service icon Energy storage solutions
  • Service icon Expert panel installation
  • Service icon Business installations
  • Service icon Home installations
  • Service icon Tailored solutions

Website: http://www.mwsolarpower.com/
Address: 816 Walsh Rd, Madison, WI 53714
Phone: 816WalshRd
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Midwest Solar Power

  • Pros icon Informative Resources
  • Pros icon Outstanding Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon End-to-end services
  • Service icon Integrated roofing
  • Service icon Tailored solutions
  • Service icon Home installations
  • Service icon Energy storage solutions
  • Service icon Expert panel installation
  • Service icon Business installations

Website: http://www.mwsolarpower.com/
Address: 816 Walsh Rd, Madison, WI 53714
Phone: 6083542063

Methodology: How We Ranked the Best Solar Companies in Koshkonong

EcoWatch's solar experts analyzed each solar company in Koshkonong based on criteria such as its reputation in the industry, customer reviews, services, warranty coverage and financing. Using this solar methodology, we used the data we collected to rate and rank each company and narrow down our picks for the best solar companies in Koshkonong


Below are some the criteria we examined specifically for Wisconsin solar companies

  • Brand reputation and certifications (20%): We take each company's Better Business Bureau (BBB) score into consideration, as well as how long the installer has been in business (at least 5 years is required, 10 preferred) and what type of solar certifications it holds.
  • Customer reviews (20%): Trust is a top priority at EcoWatch, so we take customer experience under close consideration. We scour different review sites and customer testimonials when ranking our top solar companies, checking sites such as Trustpilot and Google Reviews. We also consider any potential complaints or lawsuits filed against these companies and award or remove points accordingly.
  • Warranty (20%): A company earns a perfect score in this category if it offers 25-year warranties that cover performance, product and workmanship. The industry standard that we measure companies against is 25-year product and performance warranties, along with a 10-year workmanship warranty. We also look closely into the track record of the post-installation support each company provides in terms of honoring its contracts
  • Solar services (10%): All of the companies we review install solar panels, but we award companies higher points if they offer additional services for customers, like battery installation, energy-efficiency audits, and EV chargers.
  • Pricing and financing (10%): It's hard to get exact quotes for solar projects, but we use marketplace research to determine how each company prices its equipment and installation services. Additionally, companies that offer more help for panel financing — like in-house loans, leases, or PPAs — score higher than those that don't.
  • Availability (10%): The bigger the service area, the higher the company will score.
  • Transparency and accessibility (5%): Solar installers that offer free consultations and easy contact methods score higher in this category.
  • Environmental, social and corporate governance factors (5%): A company earns a perfect score in this category if it offers public data disclosure, addresses end-of-life (EOL) products or processes, and demonstrates a commitment to uplifting the communities that it serves.

The Cost and Benefits of Solar in Koshkonong

For most homeowners, whether or not you should invest in a solar energy system depends the most on the cost. Some main factors that determine the cost of installing a solar panel system on your home and how much it could save you over time are:

  • The amount of sunlight your roof gets: If your roof doesn't see much direct sunlight, your solar panels won't be able to make as much energy, which will give you lower savings on energy bills than someone with a roof that gets lots of sunlight.
  • Incentives: Along with the federal Solar Investment Tax Credit (ITC), which lets you receive a tax credit curretnly worth 30% of your total installation cost, your local government may offer additional tax exemptions, credits or rebates that will help you save even more. Not including incentives, you can save an average of $19,000 over 20 years with your solar panels, too.
  • System size and type: Some models are more pricy than others, so the one you want can raise or lower your upfront cost. Plus, the more solar panels you need to buy, the more it'll cost.
  • Your current power bills: Solar panels can noticeably reduce, or completely eradicate, your utility bills. In Koshkonong, you can save an average of $124 a month.

Although a solar panel system costs a good chunk of money upfront, it can save you thousands of dollars over the lifespan of your panels. The question of how much, though, depends on a number of factors, including the angle of your roof and your local electricity rates.

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Solar Incentives in Koshkonong

If you're thinking about making the switch to solar power, a variety of government incentives and tax credits can dramatically reduce the cost of the project and speed up the return on your investment. You can qualify for the federal solar investment tax credit (ITC) for the tax year you turn on your solar panels. You can also possibly use the ITC with other local rebates and benefits. Our article on solar incentives goes over more detailed information on the incentives you can find in Koshkonong.

Environmental Impact of Switching to Solar in Koshkonong

Installing solar panels can have a positive effect on the environment. You may be asking yourself — how much does going solar help the environment anyway? The amount of energy you use is an important factor to consider. The more electricity your household consumes, the larger your impact when you make the switch to solar power. In Koshkonong, the average homeowner can lower their carbon footprint by 100 pounds a year after going solar. If you want to do what you can for the environment, you'll no doubt get that there are many benefits of adopting solar power other than just saving money on electricity. You can also help protect the environment, which some would argue is invaluable.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best for Leasing

Sunrun

★★★★★
4.0

  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

Best Social Impact

Palmetto Solar

★★★★★
4.0

  • Expansive service area
  • Makes charitable contributions
  • Certified B Corp
  • No leases or PPAs
  • Quality of installation may vary by location

EcoWatch's Koshkonong, WI Solar Company Rankings FAQs

What is the top solar panel installer in Koshkonong?

The highest-rated local solar company in Koshkonong is WindSoleil Solar and Wind Energy Services, with a rating of 5.00 stars.

What is the negative environmental impact of making solar panels?

Solar panels can be bad for the environment when manufacturers use toxic chemicals when they're made. Chemicals can make solar panels difficult to dispose of safely once they've reached the end of their lifespan. Making solar panels uses a lot of energy as well. The energy payback period is about 1 to 4 years.

How long does it take to see a return on your investment after getting solar panels?

Solar panels typically pay for themselves in about 8.9 years, but your solar payback period will vary depending on your utility costs. The higher your typical electricity bill, the faster your solar panel system will recoup your installation costs.

What are the different kinds of solar panels?

There are three main types of solar panels: monocrystalline, polycrystalline and thin-film. In regard to efficiency and price, monocrystalline has the highest for both, then polycrystalline, and then thin-film. The best choice for you is highly influenced by the layout of your roof, how much you're willing to spend and how much efficiency you're looking for.

Our goal is to reach as many people as we can with sensible solutions like solar energy. Our team of full-time local researchers collects solar price and installation data for every city in America then compiles it to create these digestible city guides. If you want to read our solar expert’s opinion on the top solar companies featured here, follow this link.

Company research was conducted by Melissa Smith and Karsten Neumeister. Local data analysis was conducted by James Savino. See something we missed or could do better? Email the editor.