14 Best Solar Companies in Casco, ME (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 14 in Casco based on:
Customer review scores
Service area for Casco, ME
Company policies and services offered
Accreditations and certifications
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Average Casco homeowner saves $1,381/year with solar panels
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Best Solar Companies in Casco
If you’re looking for the best solar companies in Casco, combing through hundreds of options can be taxing, but it can pay off since adopting solar power can offer so many fantastic benefits. Because solar panels generate their own electrical power, they can vastly offset your electricity bill each month, if not completely eliminate it. In fact, you could look forward to about $16,000 of savings over 20 years.
As you set out on your search for the best solar companies in Casco, you might see that there are many providers to choose from. So, we’ve organized a curated list of the top solar companies in the area.To start getting free quotes from the best solar companies in Casco, you can click "get quote" below.
EcoWatch Rankings for Solar Companies in Casco

Maine Solar Solutions
Free Quotes
Informative Resources
Reliable Customer Support
Clear Pricing Policy
Limited information available on website
Services Offered
Permit Assistance
Panel Installation
Grid-Tied Solar System
Off-Grid Solar Systems
Community Solar Projects
Consultation
Tesla Powerwall
Battery Storage
Financing Assistance

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



Assured Solar Energy
Reliable Customer Support
Free Quotes
Informative Resources
Limited information available on website
Services Offered
Panel Installation
Battery Storage
Off-Grid Solar Systems
Grid-Tied Solar System






ALL Solar Energy Solutions
Free Quotes
Clear Pricing Policy
Informative Resources
Limited information available on website
Services Offered
Panel Installation
Consultation
Battery Storage


Bright Spot Solar
Free Quotes
Informative Resources
Clear Pricing Policy
Reliable Customer Support
Limited information available on website
Services Offered
Panel Installation
Off-Grid Solar Systems
Battery Storage
Cleaning and Maintenance

Sunny D Solar
Reliable Customer Support
Informative Resources
Clear Pricing Policy
Family-Operated Business
Free Quotes
Limited information available on website
Services Offered
Consultation
Financing Assistance
Panel Installation
Methodology: How We Ranked the Best Solar Companies in Casco
EcoWatch's solar experts analyzed each solar company in Casco 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 Casco
Below are some the criteria we examined specifically for Maine 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 Casco
For many homeowners, whether or not you should invest in solar panels comes down to the cost.There are a few factors you should take into consideration when determining how much it will cost and how much you can save, such as:
- Energy consumption: Solar may be too steep of an option for households that don’t consume a good amount of energy per month.
- Incentives: The federal solar investment tax credit, which can save you some money, lets you deduct 0 of the cost of your solar system installation from your federal taxes. In addition, not including incentives, you can save about $16,000 over 20 years on your energy bills.
- Average daily sunlight: Since Casco gets a decent amount of average daily sunlight, your solar panels can generally generate enough energy to power your whole home, which influences how much your solar panels can save you on your electricity bills.
- How much you spend on energy: The typical household in Casco pays around $1,100 a year on energy use alone, so you could be looking at that much in savings.
So is a solar system worth it? Whether you’re trying to lower your energy bills, greenhouse gas emissions or both, solar panels are a worthwhile investment for many Casco homeowners.
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Solar Incentives in Casco
Because solar power is more sustainable than fossil fuels, there are a number of government incentives in place to encourage its adoption.State and city solar incentive programs vary by location and, sometimes, utility company. A lot of states offer rebates for solar power systems, in addition to the federal solar tax credit. You can find out about the incentives you can use in our article on solar incentives
Environmental Impact of Switching to Solar in Casco
One of the reasons so many people are considering going solar is to help lower their environmental impact.But you may be wondering – how much exactly can you help the planet by going solar? In a place like Casco where commute times can be very long, going solar can help help reduce the carbon footprint of being on the road a lot.When you go solar, your carbon dioxide emissions can be lowered by about 40 pounds each year. Since energy from the sun is abundant and generates electricity without CO2 emissions, making the switch to solar power is one easy step you can take to help protect the planet.
EcoWatch's Casco, ME Solar Company Rankings FAQs
Which solar installation company is the best in Casco?
The top local solar company in Casco is Maine Solar Solutions, with a rating of 4.90 stars.
What are the advantages and disadvantages of solar power?
The advantages of solar power are that it can lower or, for some, 100% cut your electricity bills, raise your home’s value and reduce your carbon footprint. The disadvantages are that solar panels can be costly to install, you may not see as many savings if you don’t use a lot of electricity and whether you can install solar panels depends on your roof configuration.
Is it worth putting solar panels on my house?
Solar panels can be a beneficial investment for a majority of homeowners, but honestly, they might not be worth it for everyone. If your home doesn't get a lot of direct sunlight or your energy bills are already pretty low, solar panels might not be for you.
When is the best time of year to install solar panels?
Despite summer being the most common time people install solar panels, the best time is actually winter. You can save money since there's decreased demand during the winter months, and it lets you be up and running with solar for the higher power bills you may get during the summer.
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.