15 Best Solar Companies in Oconomowoc, WI (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Oconomowoc based on:
Customer review scores
Service area for Oconomowoc, WI
Company policies and services offered
Accreditations and certifications
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Average Oconomowoc homeowner saves $1,633/year with solar panels
Why you can trust EcoWatch
Best Solar Companies in Oconomowoc
If you’re a homeowner looking to make the most of the solar incentives in Oconomowoc, it can be challenging to narrow down which installer to go with. But, the hard work is worth it since adopting solar power is often a great idea. Because solar panels generate their own power, they can vastly lower your electricity bill each month, if not entirely eliminate it. In fact, you could end up with about $19,000 of savings over 20 years.
To help you comb through the huge number of Oconomowoc solar installers, we’ve narrowed down a list of the top ones.To get free quotes from the top-rated solar companies in Oconomowoc, click the "get quote" button below.
Best for Leasing
Sunrun
- Expansive service area
- Many financing options
- Some reported issues with customer service
- Some reported issues with door-to-door sales
EcoWatch Rankings for Solar Companies in Oconomowoc

Full Spectrum Solar
Informative Resources
Clear Pricing Policy
Reliable Customer Support
Limited information available on website
Services Offered
Permit Assistance
Battery Storage
Skilled Repairs
Consultation
Panel Installation

Drews Solar
Clear Pricing Policy
Free Quotes
Informative Resources
Reliable Customer Support
Prompt Service Delivery
Limited information available on website
Services Offered
Panel Installation
Financing Assistance
Grid-Tied Solar System



Endries Solar And Electric
Informative Resources
Reliable Customer Support
Limited information available on website
Services Offered
Cleaning and Maintenance
Permit Assistance
Panel Installation


All Energy Solar
Free Quotes
Clear Pricing Policy
Informative Resources
Reliable Customer Support
Limited information available on website
Services Offered
Permit Assistance
Consultation
Cleaning and Maintenance
Financing Assistance
Battery Storage
Panel Installation




Elevated Solar and Electric
Free Quotes
Informative Resources
Reliable Customer Support
Limited information available on website
Services Offered
Battery Storage
Permit Assistance
Panel Installation




Synergy Renewable Systems, LLC
Free Quotes
Limited information available on website
Services Offered
Grid-Tied Solar System
Battery Storage
Panel Installation
Permit Assistance
Financing Assistance
Methodology: How We Ranked the Best Solar Companies in Oconomowoc
EcoWatch's solar experts analyzed each solar company in Oconomowoc 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 Oconomowoc
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 Oconomowoc
For many homeowners, the decision to invest in solar energy boils down to the cost.There are several factors you should consider when trying to figure out costs and your potential savings, including:
- The model of solar panels you want: Some are more expensive, so that will influence your budget for your solar project.
- Incentives: Along with the federal Solar Investment Tax Credit (ITC), which gives you a tax credit currently worth 0 of your overall installation cost, your local government may offer additional tax exemptions, credits or rebates that will help you save even more. Excluding incentives, you can save an average of $19,000 over the first 20 years with your system, too.
- The amount of sunlight your roof gets: This, and the configuration of your roof, affects affect how much electricity your solar panels can make.
- Your current electric bills: Solar panels can greatly decrease, or entirely eliminate, your utility bills. In Oconomowoc, you can save an average of $1,295 a month.
Though a solar panel system costs a good chunk of money upfront, it can save you much more in the long term. The question of how much, though, depends on several factors, including the size of your solar panel system and your energy consumption.
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For an idea of both how much you could save and help the Earth by installing a solar panel system, you can play around with the calculator below. You can also view our solar panel cost guide for Oconomowoc, WI.
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Solar Incentives in Oconomowoc
One of the benefits of installing a solar panel system is earning government incentives.Local solar incentive programs vary by location and, sometimes, utility company. Many states offer rebates for solar power systems, in addition to the federal solar tax credit. For more information about incentives that apply to you, check out our article on solar incentives.
Environmental Impact of Switching to Solar in Oconomowoc
If you’re considering adding solar panels to your home, one of the main reasons why may be to lower your greenhouse gas emissions.But you may be wondering – how much exactly can you help by making the switch to solar? Switching to solar power is an impactful choice for the environment, due to the fact that the biggest source of greenhouse gas emissions in the U.S. is from burning fossil fuels for electricity, heat, and transportation – all of which can be powered by solar instead.In fact, if you adopt solar power, you could reduce your carbon dioxide emissions by about 90 pounds each year. If you want to do what you can for the environment, you’ll likely find that there are many good things about adopting solar power other than just saving money on electricity. You can also help preserve the environment, which some would argue is invaluable.
Best for Leasing
Sunrun
- Expansive service area
- Many financing options
- Some reported issues with customer service
- Some reported issues with door-to-door sales
EcoWatch's Oconomowoc, WI Solar Company Rankings FAQs
Which solar installation company is the best in Oconomowoc?
In Oconomowoc, Full Spectrum Solar is the best local solar company. Our team of experts rates it 5.00 stars, so it's a great choice if you're planning to add solar panels to your house.
What are some of the advantages and disadvantages of installing solar panels?
A few of the biggest pros are that it decreases your electricity bills, it’s environmentally friendly, and it provides a significant return on your investment (ROI). The most notable cons are that solar panels don’t work as well when there’s limited direct sunlight, they cost a lot upfront and solar panels aren’t always aesthetically pleasing.
How long does it take to see a return on your investment after getting solar panels?
The average payback period for solar panel installation is about 13.3 years, but the exact period varies by the cost of electricity where you are, incentives and net metering programs.
How long do solar panels last?
Even though the average lifespan of solar panels is 25 to 30 years, that doesn't mean they are completely unusable. What this means is how much energy they produce will have decreased by about 0.8% each year since installing them. You can opt to replace them after having them for that long or you can continue to use them at a lower efficiency after that time.
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.