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

We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Millis based on:

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

Average Millis homeowner saves $1,895/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 Millis

If you’re looking for the best solar companies in Millis, going through all the options can be intimidating, but it can pay off since switching to solar energy can offer so many good benefits. Thanks to encouraging government support and incentives, homeowners in Millis have access to some of the best solar installers in the nation.


If you’re thinking about going solar, the first step to make is to find the best solar companies in Millis and compare quotes. The good news is we went ahead and made a list of the best solar companies for you.Read on to see our picks for the best solar companies in the city, or connect with a certified solar company in your area right away by clicking the button below.

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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 Millis

Best Local Installer
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EcoWatch Rating

3.0/5

Sunrun Fusion New England

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

Services Offered

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

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

5.0/5

Brightway Energy

  • Con icon Limited information available on website

Services Offered

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

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

5.0/5

DO IT RIGHT SOLAR

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

Services Offered

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

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

5.0/5

NEC Solar

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

Website: http://www.massgoessolar.com/
Address: 121 Broadcommon Rd, Bristol, RI 02809
Phone: 8664464632
Outstanding Local Installer
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EcoWatch Rating

5.0/5

ReVision Energy

  • Pros icon Free Quotes
  • Pros icon Prompt Service Delivery
  • 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 Financing Assistance
  • Service icon Battery Storage
  • Service icon Community Solar Projects
  • Service icon Panel Installation
  • Service icon Consultation
  • Service icon Cleaning and Maintenance

Website: https://www.revisionenergy.com/
Address: 1980 Turnpike St Ste 2, North Andover, MA 01845
Phone: 9783089041
Outstanding Local Installer
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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 Panel Installation
  • Service icon Consultation
  • Service icon Cleaning and Maintenance
  • Service icon Permit Assistance

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

5.0/5

Neighborhood Solar

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

Services Offered

  • Service icon Cleaning and Maintenance
  • Service icon Panel Installation
  • Service icon System Decommissioning
  • Service icon Consultation

Website: https://www.neighborhoodsolar.us/
Address: 140 Spring St, Newport, RI 02840
Phone: 4012390529
Outstanding Local Installer
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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
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EcoWatch Rating

5.0/5

Solar Rising

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

Services Offered

  • Service icon Skilled Repairs
  • Service icon Permit Assistance
  • Service icon Battery Storage
  • Service icon System Decommissioning
  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance

Website: http://www.solarrising.net/
Address: 348 Main St, Mashpee, MA 02649
Phone: 5087446284
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Sunup Solar

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

Services Offered

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

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

5.0/5

Cotuit Solar LLC

  • 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 Battery Storage

Website: http://www.cotuitsolar.com/
Address: 29 Trinity Pl, Mashpee, MA 02649
Phone: 5084288442
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Great Sky Solar

  • 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
  • Service icon Consultation

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

4.9/5

Evergreen Solar | RI & MA Solar Panel Company

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

Website: https://sunwatt.us/
Address: 1005 Main St #2129, Pawtucket, RI 02860
Phone: 8447869288
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Future Energy Solar

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

Services Offered

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

Website: http://futureenergysolar.com/
Address: 21 Olympia Ave unit v, Woburn, MA 01801
Phone: 7819607005

Methodology: How We Ranked the Best Solar Companies in Millis

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


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 Millis

Solar panels are powered by a free energy source — the sun — but to take advantage of this you first need to pay to set up your system.Some key factors that affect the cost of installing solar panels on your home and how much it could save you over time include:

  • The model of solar panels you want: More efficient models are more costly, so that will affect your budget for your solar project.
  • Your city: This influences how much sunlight your roof receives, which helps determine how many panels you need.
  • Incentives: Along with the federal Solar Investment Tax Credit (ITC), which lets you deduct 0 of your overall installation cost, your local government may offer additional tax exemptions, credits or rebates that can help you save even more. Aside from incentives, you can save an average of $22,000 over the first 20 years with your solar system, too.
  • Typical energy usage: The more power your home uses on average and the steeper your current power bills are, the more benefits you’ll see from making the switch to solar.

Solar is a rewarding investment for most homeowners. You can make your own electricity instead of paying for it from a utility company and take advantage of solar incentives, all while helping preserve the planet.

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Solar Incentives in Millis

Although installing solar panels is typically a $15,000 to $25,000 investment, it can save you a substantial amount of money in the long term because of smaller utility bills and government incentives.Regardless of where you live, you can take advantage of the federal Solar Investment Tax Credit (ITC), which allows you to claim 0 of how much you paid for your solar installation on your tax return, lowering the amount of taxes you owe that year. In addition, there may be some state and city incentives that can save you some extra money too. For more information about incentives for homeowners in Millis, see our article on solar incentives.

Environmental Impact of Switching to Solar in Millis

Switching to solar energy can have a beneficial impact on the environment.But how much can installing solar panels actually help the environment? For people who are environmentally-conscious, going solar is an easy choice, especially since Millis produces a fair amount of carbon dioxide emissions from its energy generation.Because solar panels don’t release carbon dioxide emissions into the atmosphere when producing electricity, they’re a good swap for traditional energy sources. In fact, you could reduce your carbon dioxide emissions by about 40 pounds each year. If you want to do your part for the environment, you’ll most likely get that there are many benefits of adopting solar energy other than just saving money on bills. You can also help protect the environment, which some would argue is priceless.

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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 Millis, MA Solar Company Rankings FAQs

What is the best solar panel installer in Millis?

In Millis, Sunrun Fusion New England is the top local solar company. Our team of experts rates it 3.00 stars, so it's a solid choice if you're looking to install solar panels on your home.

What are the best and worst things about solar power?

The advantages of solar power are that it can lower or, for some, totally erase your electricity bills, raise the value of your home and cut back on your carbon footprint. The greatest 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.

Are solar panels worth it?

Solar panels require a large upfront investment that will cost you several thousands of dollars, but whether or not solar panels are worth it depends on a variety of factors like the cost of electricity near you and the amount of direct sunlight your roof gets.

When is the best time of year to install solar panels?

You can install solar panels whenever it's convenient for you, but consider doing so in the winter when the demand is less. With fewer homeowners going solar, you could potentially see faster installation times and more savings.

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.