15 Best Solar Companies in Groton, MA (2025 Reviews)

We analyzed over 1500 solar companies in the nation,
and have selected the top 15 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 January 24, 2025

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

Thinking of going solar but still deciding on which solar panel installer would be best for you? Although it can be challenging to pick a solar company, the search will pay off because going solar has many good benefits. Installation costs can be high, but switching to solar will save you money on your utility bills over time. In fact, you can potentially save about $22,000 over 20 years.


In this article, we’ll help you narrow in on the best options in your area.To get an estimate of how much it could cost to install solar panels on your roof, you can click the button below to be connected to a certified installer near you.

Advertisement

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 Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Sunrun Fusion New England

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

Services Offered

  • Service icon Panel Installation
  • Service icon Grid-Tied Solar System
  • Service icon Battery Storage
  • Service icon Skilled Repairs
  • Service icon Consultation
  • Service icon Permit Assistance
  • Service icon Cleaning and Maintenance

Website: http://www.sunrun.com/
Address: 420 S Washington St Suite 6, North Attleborough, MA 02760
Phone: 5083728582
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Sunergy Solutions, LLC

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

Services Offered

  • Service icon Financing Assistance
  • Service icon Panel Installation

Website: https://sunergysolutionsllc.com/
Address: 75 Gilcreast Rd STE 210, Londonderry, NH 03053
Phone: 8444276527
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Helios Solar Energy

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

Services Offered

  • Service icon Financing Assistance
  • Service icon Consultation
  • Service icon Cleaning and Maintenance
  • Service icon Panel Installation
  • Service icon Permit Assistance

Website: http://www.hssolarpower.com/
Address: 225 Broadway Suite 910, Methuen, MA 01844
Phone: 9783811815
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

ReVision Energy

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

Services Offered

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

Website: https://www.revisionenergy.com/
Address: 1980 Turnpike St Ste 2, North Andover, MA 01845
Phone: 9783089041
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Brightway Energy

  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Financing Assistance
  • Service icon Panel Installation

Website: https://brightwayenergy.com/
Address: 165 Middlesex Ave, Somerville, MA 02145
Phone: 6179066655
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Sunup Solar

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

Services Offered

  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance
  • Service icon Skilled Repairs
  • Service icon Battery Storage

Website: http://www.sunupsolarnh.com/
Address: Dollard Rd, Auburn, NH 03032
Phone: 6038602509
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Northeast Solar

  • Pros icon Prompt Service Delivery
  • 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 Consultation
  • Service icon Battery Storage
  • Service icon Solar Carports
  • Service icon Panel Installation
  • Service icon Permit Assistance
  • Service icon Financing Assistance
  • Service icon Cleaning and Maintenance

Website: https://northeast-solar.com/
Address: 136 Elm St, Hatfield, MA 01038
Phone: 4132476045
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

DO IT RIGHT SOLAR

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

Services Offered

  • Service icon Consultation
  • Service icon Grid-Tied Solar System
  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon System Decommissioning

Website: https://www.doitrightsolarllc.com/
Address: 150 Cornell St, Cranston, RI 02920
Phone: 4134045967
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Critical Mass Solar

  • 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
  • Service icon Financing Assistance

Website: https://www.criticalmasssolar.com/
Address: 33 Leighton St, Pepperell, MA 01463
Phone: 9782721486
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Future Energy Solar

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

Services Offered

  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Permit Assistance

Website: http://futureenergysolar.com/
Address: 21 Olympia Ave unit v, Woburn, MA 01801
Phone: 7819607005
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Great Sky Solar

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

Services Offered

  • Service icon Panel Installation
  • Service icon Consultation

Website: http://greatskysolar.com/
Address: 29 Mill St, Arlington, MA 02476
Phone: 8889660726
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Granite State Solar

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

Services Offered

  • Service icon Panel Installation
  • Service icon Battery Storage
  • Service icon Financing Assistance

Website: https://www.granitestatesolar.com/
Address: 57 Ryan Rd, Bow, NH 03304
Phone: 6033694318
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Sundial Solar

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

Services Offered

  • Service icon Financing Assistance
  • Service icon Panel Installation
  • Service icon Consultation
  • Service icon Battery Storage
  • Service icon Permit Assistance
  • Service icon Tesla Powerwall

Website: http://sundialsolarnh.com/
Address: 7 Pleasant St Ext, Concord, NH 03301
Phone: 6039610045
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Evergreen Solar | RI & MA Solar Panel Company

  • Pros icon Informative Resources
  • 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

Website: http://goevergreen.solar/
Address: 163 Exchange St STE 201, Pawtucket, RI 02860
Phone: 5085072840
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Sunwatt Solar

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

Services Offered

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

Website: https://sunwatt.us/
Address: 1005 Main St #2129, Pawtucket, RI 02860
Phone: 8447869288

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 save you money on energy over time, it’s necessary to consider the upfront costs.There are several factors you should take into consideration when trying to figure out costs and your potential savings, such as:

  • Incentives: Along with the federal Solar Investment Tax Credit (ITC), which lets you receive a tax credit curretnly 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. Not including incentives, you can save an average of $22,000 over the first 20 years with your solar system, too.
  • Choice of solar panels: The type of solar panels you get will affect your total cost. High-efficiency monocrystalline panels are more expensive upfront but can also save you more money over the lifetime of your system. If space isn't a constraint for your project, you can opt for a higher number of more affordable panels.
  • average energy usage: The more energy your household uses on average and the larger your current electricity bills are, the more benefits you’ll see from making the switch to solar.
  • Your city: This affects the average daily sunlight your roof gets, which helps determine how many panels you need.

There are many good benefits of solar even with the initial cost of installation. It can help the planet and your wallet. Additionally, it can raise the value of your home, resulting in even more benefits if you decide to sell your home later.

Solar Savings Calculator for {{ solarcalc.name }}

Adopting a sustainable source of energy can greatly impact both the environment and your monthly expenses. To see how much, use the calculator below. You can also view our solar panel cost guide for Groton, MA.

{{ solarcalc.time_period|number:0 }} -year savings{{ solarcalc.total_savings()|currency }}
Estimated cost{{ solarcalc.array_cost() | currency }}
Estimated incentives{{ solarcalc.incentive_savings() | currency }}
Payback period{{ solarcalc.payback_period()|number:1 }} years
CO2 emissions prevented{{ solarcalc.CO2_total()|number:0 }} lbs
Miles driven equivalent{{ solarcalc.CO2_total()/0.78|number:0 }} mi
Why leave {{ solarcalc.total_savings()|currency }} on the table? Help the environment and your wallet by switching to solar. GET ESTIMATE

Electricity rate:
{{ solarcalc.elec_cost/10 }} ¢
Shade:
{{ solarcalc.shade }} %
Time period:
{{ solarcalc.time_period }} years
System size:
{{ solarcalc.system_size }} kW
Additional Incentives:
{{ solarcalc.additional_incentives|currency }}

Switching to solar in {{ solarcalc.name }} can save you {{ solarcalc.total_savings() | currency }} over the course of {{ solarcalc.time_period|number:0 }} years.

Solar Incentives in Groton

If you’re thinking about making the switch to solar energy, several government incentives and tax credits can immensely lower the cost of the project and speed up the return on your investment.Local solar incentive programs vary by location and, sometimes, utility company. Many states offer rebates for solar panels, in addition to the federal solar tax credit. Our article on solar incentives goes over more detailed information on the incentives you can take advantage of in Groton.

Environmental Impact of Switching to Solar in Groton

One of the reasons so many homeowners consider going solar is to help reduce their environmental impact.Many homeowners might be wondering how much exactly they can impact the environment by switching to solar in Groton, though. In Groton, where the energy generation could be cleaner, going solar can have a significant impact on the Earth since solar power has a lower carbon footprint.In fact, if you make the switch to solar power, you could lower your carbon dioxide emissions by about 40 pounds each year. As you can see, using solar power has so many other rewards apart from saving money. One of the major ones is that you can help save the planet too.

Advertisement

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 most reputable solar panel installation company in Groton?

The highest-rated local solar company in Groton is Sunrun Fusion New England, with a rating of 3.00 stars.

What are the pros and cons of solar power?

A few of the biggest pros are that it reduces your electricity bills, it’s environmentally friendly, and it gives you a significant return on your investment (ROI). The most notable cons are that solar panels don’t produce electricity at night, there is a high upfront cost and solar panels aren’t always aesthetically pleasing.

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

The average payback period for solar panel installation is about 12.3 years, but the exact period depends on local electricity costs, incentives and net metering programs.

What is the best kind of solar panel?

The different types of solar panels are monocrystalline, polycrystalline and thin-film. Monocrystalline panels are more efficient but also cost more. Polycrystalline panels are less expensive but also less efficient than monocrystalline. Thin-film solar panels are flexible, so they can be used where the other types can’t, such as on curved surfaces or cars, but they are also less efficient. The best one for you depends on your budget, the layout of your roof and how much energy generation you want.

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.