13 Best Solar Companies in Portland, ME (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 13 in Portland based on:
Customer review scores- Service area for Portland, ME
- Company policies and services offered
- Accreditations and certifications
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Average Portland homeowner saves $1,381/year with solar panels
Why you can trust EcoWatch
Best Solar Companies in Portland
As a homeowner in Portland, you may be planning on switching to solar power and curious about the best solar companies in your area. Solar could be a great idea since it has a lot of perks. With high levels of average daily sunlight in Portland, the solar industry is doing fairly well. An overlooked reason for this growth has been Maine's statewide incentives that support residential and commercial solar projects.
As you set out on your search for the best solar companies in Portland, you’ll find that there are a lot of providers to choose from. So, we’ve put together an expertly curated list of the top solar companies in the area.To get free quotes from the leading solar companies in Portland, click the "get quote" button below.
EcoWatch Rankings for Solar Companies in Portland
ReVision Energy
Clear Pricing Policy- Informative Resources
- Free Quotes
- Reliable Customer Support
Limited information available on website
Services Offered
Community Solar Projects- Panel Installation
- Battery Storage
- Financing Assistance
- Consultation
- Cleaning and Maintenance
Maine Solar Solutions
- Free Quotes
- Clear Pricing Policy
- Informative Resources
- Reliable Customer Support
- Limited information available on website
Services Offered
- Financing Assistance
- Panel Installation
- Permit Assistance
- Grid-Tied Solar System
- Battery Storage
- Consultation
- Off-Grid Solar Systems
- Community Solar Projects
- Tesla Powerwall
Goggin Energy
- Free Quotes
- Reliable Customer Support
- Informative Resources
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Panel Installation
Assured Solar Energy
- Free Quotes
- Reliable Customer Support
- Informative Resources
- Limited information available on website
Services Offered
- Panel Installation
- Battery Storage
- Off-Grid Solar Systems
- Grid-Tied Solar System
Univix Power Solutions
- Informative Resources
- Free Quotes
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Panel Installation
- Battery Storage
Mains Electric, LLC
- Free Quotes
- Informative Resources
- Limited information available on website
Services Offered
- Skilled Repairs
- Panel Installation
- Financing Assistance
Cleantap Energy
- Free Quotes
- Reliable Customer Support
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Consultation
- Panel Installation
SunVersion LLC
- Reliable Customer Support
- Limited information available on website
Services Offered
- Battery Storage
- Panel Installation
- Cleaning and Maintenance
- Financing Assistance
Mancini Electric
- Reliable Customer Support
- Free Quotes
- Informative Resources
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Skilled Repairs
- Panel Installation
ALL Solar Energy Solutions
- Clear Pricing Policy
- Free Quotes
- Informative Resources
- Limited information available on website
Services Offered
- Battery Storage
- Consultation
- Panel Installation
Bright Spot Solar
- Informative Resources
- Reliable Customer Support
- Clear Pricing Policy
- Free Quotes
- Limited information available on website
Services Offered
- Off-Grid Solar Systems
- Cleaning and Maintenance
- Panel Installation
- Battery Storage
Sunny D Solar
- Family-Operated Business
- Free Quotes
- Reliable Customer Support
- Clear Pricing Policy
- Informative Resources
- Limited information available on website
Services Offered
- Financing Assistance
- Consultation
- Panel Installation
ReVision Energy
- Informative Resources
- Reliable Customer Support
- Free Quotes
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Consultation
- Financing Assistance
- Panel Installation
- Battery Storage
- Cleaning and Maintenance
- Community Solar Projects
Methodology: How We Ranked the Best Solar Companies in Portland
EcoWatch's solar experts analyzed each solar company in Portland 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 Portland
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 Portland
When choosing a solar company, most homeowners or business owners think about the costs the most.There are a few factors you should consider when trying to figure out the overall cost and how much you can save, including:
- The type and model of solar panels you want to get: More efficient panels are more expensive, so that will affect your budget for your solar project.
- Incentives: The federal solar investment tax credit, which everyone qualifies for, allows you to deduct 0 of the cost of your solar system installation from your taxes. Additionally, not including incentives, you can save about $16,000 over 20 years on your energy bills.
- Electricity consumption: The average home in Portland uses a decent amount of, and therefore may save on their energy bills.
- Your location: This affects how much sunlight your roof receives, which helps determine how many panels you need.
There are lots of wonderful benefits of solar in spite of the upfront cost of installation. It can help the Earth and your finances. Plus, it can boost the value of your home, resulting in even more benefits if you choose to sell your home later.
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Solar Incentives in Portland
In order to increase the number of homes and businesses that use solar power, incentives are offered by the government – and even some utility companies – to help make switching to solar power more economically viable and accessible.You qualify for the federal solar investment tax credit (ITC) for the tax year you turn on your a solar system. You can also potentially use the ITC with other state and city incentives. You can learn about the incentives available to you in our article on solar incentives
Environmental Impact of Switching to Solar in Portland
One of the most compelling reasons to tap into solar energy is to reduce your reliance on traditional energy sources like burning fossil fuels, which are destructive for the environment.But you may be curious – how much exactly can you help the environment by making the switch to solar? The more power your family uses, the the more the environment will benefit when you switch to solar as you won’t have to rely on traditional energy sources as much.In fact, if you install solar panels, you could be looking at reducing your carbon dioxide emissions by about 40 pounds each year. For people who care about the environment, the upfront cost of solar is a small price to pay for offsetting your carbon emissions.
EcoWatch's Portland, ME Solar Company Rankings FAQs
What is the most reputable solar panel installer in Portland?
In Portland, ReVision Energy is the top local solar company. Our team of experts rates it 5.00 stars, so it's a great choice if you're looking to install solar panels on your house.
What is the negative environmental impact of making solar panels?
Manufacturing solar panels uses chemicals and produces toxic waste that can be dangerous for the environment, which is the main downside of solar panels.
Are solar panels worth it?
Solar panels can be a great investment for many homeowners, but truthfully, they might not be worth it for everyone. If your home doesn't get enough sunlight or your electricity bills are already fairly low, solar panels might not be for you.
How long do solar panels last?
Though the average lifespan of solar panels is 25 to 30 years, that doesn't mean they stop working completely. What this means is how much energy they produce will have decreased by about 0.8% each year since installing them. You can choose 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.