12 Best Solar Companies in South Portland, ME (2024 Reviews)

We analyzed over 1500 solar companies in the nation,
and have selected the top 12 in South Portland based on:

  • Customer review scores
  • Service area for South Portland, ME
  • Company policies and services offered
  • Accreditations and certifications

Average South Portland homeowner saves $1,381/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated June 24, 2024

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 South Portland

Finding the right solar panel installation company for your house is a big decision, but it's one that can reap a lot of rewards in South Portland. While solar power is a sizable investment, you’ll be able to make the cost back and then some, all while living more sustainably. In fact, you could look forward to saving about $16,000 over 20 years.


In this article, we’ll tell you about the top South Portland solar installers so you can make the best choice for your home’s sustainable energy needs.To see how much you might pay to install solar panels on your roof, you can get a free quote from one of the top solar companies in South Portland by clicking the "get quote" button below.

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EcoWatch Rankings for Solar Companies in South Portland

Best Local Installer
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EcoWatch Rating

4.9/5

ReVision Energy

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

Services Offered

  • Service icon Community Solar Projects
  • Service icon Panel Installation
  • Service icon Consultation
  • Service icon Financing Assistance
  • Service icon Cleaning and Maintenance
  • Service icon Battery Storage

Website: https://www.revisionenergy.com/
Address: 758 Westbrook St, South Portland, ME 04106
Phone: 2072216342
Outstanding Local Installer
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EcoWatch Rating

4.6/5

Goggin Energy

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

Services Offered

  • Service icon Panel Installation

Website: https://www.gogginenergy.com/
Address: 75 W Commercial St STE 202, Portland, ME 04101
Phone: 2077727557
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Maine Solar Solutions

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

Services Offered

  • Service icon Permit Assistance
  • Service icon Panel Installation
  • Service icon Community Solar Projects
  • Service icon Tesla Powerwall
  • Service icon Grid-Tied Solar System
  • Service icon Consultation
  • Service icon Financing Assistance
  • Service icon Battery Storage
  • Service icon Off-Grid Solar Systems

Website: https://mainesolarsolutions.com/
Address: 491 US-1 Suite 20, Freeport, ME 04032
Phone: 2078717191
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Mancini Electric

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

Services Offered

  • Service icon Panel Installation
  • Service icon Skilled Repairs

Website: https://www.mancinielectric.com/
Address: 179 Sheridan St, Portland, ME 04101
Phone: 2077745829
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Assured Solar Energy

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

Services Offered

  • Service icon Battery Storage
  • Service icon Grid-Tied Solar System
  • Service icon Panel Installation
  • Service icon Off-Grid Solar Systems

Website: https://assuredsolar.com/
Address: 460 Mountfort Rd, North Yarmouth, ME 04097
Phone: 2072212916
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Cleantap Energy

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

Services Offered

  • Service icon Consultation
  • Service icon Panel Installation

Website: http://www.cleantapenergy.com/
Address: 19 Main St, Gray, ME 04039
Phone: 2073837635
Outstanding Local Installer
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EcoWatch Rating

3.0/5

ALL Solar Energy Solutions

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

Services Offered

  • Service icon Consultation
  • Service icon Battery Storage
  • Service icon Panel Installation

Website: https://allsolarenergysolutions.com/
Address: 12 Center Park Road Suite 5, Topsham, ME 04086
Phone: 2075365935
Outstanding Local Installer
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EcoWatch Rating

3.0/5

SunVersion LLC

  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Financing Assistance
  • Service icon Cleaning and Maintenance
  • Service icon Panel Installation
  • Service icon Battery Storage

Website: http://www.sunversion.com/
Address: 88 Brownfield Rd, Hiram, ME 04041
Phone: 2072560931
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Mains Electric, LLC

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

Services Offered

  • Service icon Financing Assistance
  • Service icon Panel Installation
  • Service icon Skilled Repairs

Website: http://www.mainselectric.com/
Address: 44 Main St, Alton, NH 03809
Phone: 6038333312
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Bright Spot Solar

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

Services Offered

  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance
  • Service icon Battery Storage
  • Service icon Off-Grid Solar Systems

Website: https://brightspot.solar/
Address: 67 NH-11, Farmington, NH 03835
Phone: 6038338870
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Sunny D Solar

  • Pros icon Family-Operated Business
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Financing Assistance
  • Service icon Panel Installation

Website: http://www.sunnyd.solar/
Address: 8 Birch Dr, Rochester, NH 03867
Phone: 6033689057
Outstanding Local Installer
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EcoWatch Rating

5.0/5

ReVision Energy

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

Services Offered

  • Service icon Battery Storage
  • Service icon Cleaning and Maintenance
  • Service icon Financing Assistance
  • Service icon Consultation
  • Service icon Panel Installation
  • Service icon Community Solar Projects

Website: https://www.revisionenergy.com/locations/brentwood-nh-solar-showroom/
Address: 7 Commercial Dr, Brentwood, NH 03833
Phone: 6036791777

Methodology: How We Ranked the Best Solar Companies in South Portland

EcoWatch's solar experts analyzed each solar company in South 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 South 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 South Portland

For many people considering switching to solar, the decision of which solar company to go with comes down to total costs.The installation cost is just one important factor you should bear in mind when looking into getting solar panels. How much it'll cost and how much you can save depend on things such as:

  • System size and type: Some models are more costly than others, so the one you get can raise or lower your upfront cost. Plus, the more solar panels you need to get, the more it'll cost.
  • Your current energy bills: Solar panels can noticeably lower, or entirely eliminate, your utility bills. In South Portland, you can save an average of $1,138 a month.
  • Incentives: One thing that can reduce the cost of your solar project is the solar investment tax credit (ITC), which is a tax credit that lets you deduct from your taxes a percentage of the project cost. You can also save a decent amount of money on your power bills, which can give you an average of $16,000 of savings over 20 years.
  • Your city: This affects the average daily sunlight your roof gets, which helps determine how many panels you need.

As a result of solar panels now being cheaper than ever as well as several solar incentives, they are a worthwhile investment for many homeowners.

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Solar Incentives in South Portland

Because solar power is more sustainable than burning fossil fuels, there are some government incentives available to encourage its adoption.There are a lot of federal, state and local rebates and tax credits that earn some money in return after paying for a qualifying system. For more information about incentives that apply to you, see our article on solar incentives.

Environmental Impact of Switching to Solar in South Portland

There are a few important reasons why homeowners are considering solar energy: for the financial and environmental benefits.But you may be wondering – how much exactly can you help by using solar power? In a city like South Portland where energy use is rather high, going solar is a great idea for those who are worried about the state of the planet.If you go solar, your carbon footprint can be lowered by about 40 pounds every year. Since energy from the sun is renewable and makes electricity without releasing carbon emissions, adding solar panels to your home is one easy step you can take to help protect the environment.

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EcoWatch's South Portland, ME Solar Company Rankings FAQs

Which solar power company is the best in South Portland?

In South Portland, ReVision Energy is the most reputable local solar company. Our team of experts rates it 4.90 stars, so it's a good choice if you're planning to add solar panels to your house.

What are the pros and cons of solar power?

The biggest advantages of solar power are that it can decrease or, for some, 100% cut your electricity bills, improve the value of your home and cut back on your carbon footprint. The main disadvantages are that solar panels can be pricey 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.

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

Solar panels generally pay for themselves in about 15.4 years, but your solar payback period will depend on your utility costs. The more your typical electricity bill, the quicker your solar panel system will pay for itself.

When should I put up solar panels?

Although summer is the most common time people install solar panels, the ideal 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.

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.