18 Best Solar Companies in Groton, MA (2023 Reviews)

We analyzed over 1500 solar companies in the nation,
and have selected the top 18 in Groton based on:

  • Customer review scores
  • Service area for Groton, MA
  • Company policies and services offered
  • Accreditations and certifications

Average Groton homeowner saves $1,855/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 Groton

As a homeowner or business owner in Groton, you may be interested in switching to solar and wondering about the best solar companies in your city. Solar could be a great choice since it comes with many perks. Because solar panels produce their own power, they can greatly lower your electricity bill each month, if not completely eliminate it. In fact, you could look forward to about $22,000 of savings over 20 years.

To help you sort through the large variety of Groton solar installers, we've narrowed in on a list of the top ones. To see how much you might pay to put up a solar panel system on your roof, you can get a free, no-obligation quote from one of the top solar companies in Groton by clicking 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 Regional Coverage

Momentum Solar

★★★★★
4.5

  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

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

EcoWatch Rankings for Solar Companies in Groton

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 Regional Coverage
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EcoWatch Rating

4.5/5

Average Cost

Momentum Solar

  • Pros icon Great warranty coverage
  • Pros icon Representatives are experts on local policies
  • Pros icon Concierge service ensures steady communication
  • Con icon Slightly limited service offerings

Services Offered

  • Service icon Solar Panels
  • Service icon Solar Batteries

Website: https://www.momentumsolar.com/
Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.1/5

ReVision Energy

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

Services Offered

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

Website: https://www.revisionenergy.com/
Address: North Andover, MA 01845
Phone: 9783089041
Outstanding Local Installer
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EcoWatch Rating

4.0/5

New England Clean Energy

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

Services Offered

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

Website: https://www.newenglandcleanenergy.com/
Address: Hudson, MA 01749
Phone: 9785676527
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
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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/
Solar Veteran
ecowatch badge icon

EcoWatch Rating

4.0/5

Average Cost

Trinity Solar

  • Pros icon Many financing options
  • Pros icon Family-owned and -operated
  • Pros icon Makes charitable contributions
  • Con icon Limited service area
  • Con icon Relatively short workmanship warranty

Services Offered

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

Website: https://www.trinity-solar.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

Critical Mass Solar

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

Services Offered

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

Website: https://www.criticalmasssolar.com/
Address: Pepperell, MA 01463
Phone: 9782721486
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Stellar Solar Pros Pepperell

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

Services Offered

  • Service icon Tailored solutions
  • Service icon Home installations

Website: https://polarbearair.blogspot.com/2022/01/stellar-solar-pros-pepperell.html
Address: Pepperell, MA 01463
Phone: 9783969953
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Solar Design Associates

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

Services Offered

  • Service icon Tailored solutions
  • Service icon Energy storage solutions
  • Service icon Integrated roofing
  • Service icon Home installations

Website: http://www.solardesign.com/
Address: Harvard, MA 01451
Phone: 9784566855
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Sun Team

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

Services Offered

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

Website: http://www.mysunteam.com/
Address: Shirley, MA 01464
Phone: 4086580891
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Stellar Solar Pros Shirley

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

Services Offered

  • Service icon Tailored solutions
  • Service icon Home installations

Website: https://polarbearair.blogspot.com/2022/01/stellar-solar-pros-shirley.html
Address: Shirley, MA 01464
Phone: 9783969954
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Solar On Earth

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

Services Offered

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

Website: https://solaronearth.com/
Address: Acton, MA 01720
Phone: 8447652582
Outstanding Local Installer
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EcoWatch Rating

3.0/5

KiloVault

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

Services Offered

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

Website: https://kilovault.com/
Address: Boxborough, MA 01719
Phone: 8882185924
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

altE Store

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

Services Offered

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

Website: https://www.altestore.com/
Address: Boxborough, MA 01719
Phone: 8778784060
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

altE Direct

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

Services Offered

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

Website: http://www.altedirect.com/
Address: Boxborough, MA 01719
Phone: 8003209514
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Endurans Solar | Endurance Solar Solutions Inc.

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

Services Offered

  • Service icon Tailored solutions
  • Service icon Energy storage solutions
  • Service icon Home installations

Website: https://www.endurans-solar.com/
Address: Nashua, NH 03060
Phone: +31850819400

Methodology: How We Ranked the Best Solar Companies in Groton

EcoWatch's solar experts analyzed each solar company in Groton 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 Groton


Below are some the criteria we examined specifically for Massachusetts 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 Groton

Although solar panels can help save you a good amount of money on utility bills over time, it's important to consider the upfront costs. Some important things that determine the upfront cost and potential savings over time include:

  • The cost of electricity in your area: If your local utility rates are quite high, there's a good chance you'll have a higher return on your investment in a solar system. In Groton, you can save an average of $86 a month on your electricity bills.
  • Your home's orientation toward the sun: This, and the configuration of your roof, affects affect how much power your solar panels can make.
  • Incentives: Those who buy and install a solar energy system this year can save 30% of their overall solar costs by taking advantage of the federal solar investment tax credit. You can also save about $22,000 on your energy bills over 20 years without incentives.
  • The type of solar panel system you can afford: This is dependent on how much you're willing to spend upfront.

There are many great benefits of solar in spite of the upfront cost of installation. It can help the Earth and your wallet. Additionally, it can raise the value of your home, giving you even more benefits if you decide to sell your home later.

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Solar Incentives in Groton

There are several reasons why going solar is a great investment. One of them includes some government incentives that can help save you some money. State and city solar incentives vary by location and, sometimes, utility company. Many states offer rebates for home solar power systems, in addition to the federal solar tax credit. You can learn about the incentives you can take advantage of in our article on solar incentives

Environmental Impact of Switching to Solar in Groton

Installing solar panels is a compelling way to do your part for a greener future. But how much can installing solar panels actually help the environment? One thing to keep in mind is your overall carbon footprint. For example, if you spend lots of time commuting to work and have an electric vehicle, you can install solar panels on your home to power your EV and therefore help offset your carbon emissions. While solar panel production releases carbon dioxide emissions, the panels make up for it by significantly lowering the amount of CO2 you would have released if you still used nonrenewable energy. In Groton, you can reduce your carbon footprint by 40 pounds a year with solar panels. As you can see, going solar has so many other benefits apart from saving money. One of the primary ones is that you can help save the environment too.

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 Regional Coverage

Momentum Solar

★★★★★
4.5

  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

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

EcoWatch's Groton, MA Solar Company Rankings FAQs

What is the top solar panel company in Groton?

In Groton, ReVision Energy, Inc. is the most reputable local solar company. Our team of experts rates it 5.00 stars, so it's a great choice if you're planning on installing solar panels on your house.

Are solar panels really eco-friendly?

Solar panels can be harmful for the environment when manufacturers use toxic chemicals in the construction. Chemicals can make solar panels difficult to recycle safely once they've reached the end of their lifespan. Solar panel manufacturing needs a lot of energy as well. The energy payback period is about 1 to 4 years.

How long does it take for solar to pay for itself?

Solar panels generally pay for themselves in about 8.9 years, but your solar payback period will depend on your utility costs. The higher your typical energy bill, the quicker your solar panel system will recoup your installation costs.

How much solar panel capacity do I need for my house?

Solar panel capacity is how much energy the panels can generate under ideal conditions (a sunny day around noon). The average household has to install between 20 and 35 panels to account for their energy needs.

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.