15 Best Solar Companies in Princeton, MA (2023 Reviews)

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

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

Average Princeton homeowner saves $1,749/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated September 15, 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 Princeton

As a homeowner in Princeton, you may be interested in switching to solar energy and curious about the best solar companies in your city. Solar could be a great idea since it has a lot of benefits. Solar panels can be expensive, but the switch will save you money on your utility bills over time. In fact, you can look forward to saving about $21,000 over 20 years.

If you're planning on going solar, the first step to make is to find the best solar companies in Princeton and compare quotes. That's why we did the hard work and came up with a list of the best solar companies to make your life easier. To see how much you would pay to put up solar panels on your roof, you can get a free quote from one of the top solar companies in Princeton 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 Princeton

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.6/5

SunPower by BlueSel Home Solar

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

Services Offered

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

Website: https://www.bluesel.com/
Address: 400 W Cummings Park #3425, Woburn, MA 01801
Phone: 7812818130
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Sunrun Fusion New England

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

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

EcoWatch Rating

4.9/5

RES Solar

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

Services Offered

  • Service icon Home installations
  • Service icon Business installations
  • Service icon Tailored solutions
  • Service icon Expert panel installation
  • Service icon Skilled repairs

Website: http://www.ressolar.com/
Address: 15 Marion Way, Cohasset, MA 02025
Phone: 7815453320
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.5/5

Avid Solar LLC

  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Reliable 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 Home installations

Website: https://avidsolar.com/
Address: 80 Wilder Rd, Sterling, MA 01564
Phone: 8885173767
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

Sun Team

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

Website: http://www.mysunteam.com/
Address: 58 Holden Rd, Shirley, MA 01464
Phone: 4086580891
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Donahue & Sons

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

Services Offered

  • Service icon Skilled repairs
  • Service icon Tailored solutions
  • Service icon Home installations
  • Service icon Business installations
  • Service icon Expert panel installation

Website: https://donahuesons.com/
Address: 123 Cut Off Rd, Barre, MA 01005
Phone: 5083802082
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Greentech Renewables Auburn

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

Services Offered

  • Service icon Tailored solutions
  • Service icon Business installations
  • Service icon Home installations
  • Service icon Skilled repairs

Website: http://cedgreentechma.portalced.com/
Address: 3 C St, Auburn, MA 01501
Phone: 7742439597
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.3/5

Energy Monster

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

Website: https://myenergymonster.com/ma/
Address: 100 Lamartine St, Worcester, MA 01608
Phone: 5087965525
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.7/5

altE Store

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

Services Offered

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

Website: https://www.altestore.com/
Address: 330 Codman Hill Rd, Boxborough, MA 01719
Phone: 8778784060
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.7/5

Boundless, Inc.

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

Services Offered

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

Website: https://boundlessinc.com/
Address: 11 Apex Dr #301b, Marlborough, MA 01752
Phone: 8888904069
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Mass Megawatts Wind Power Inc

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

Website: http://massmegawatts.com/
Address: 95 Prescott St, Worcester, MA 01605
Phone: 5089423531
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Zero-Point Development, Inc.

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

Services Offered

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

Website: http://zpeenergy.com/
Address: 6 Park Ave, Worcester, MA 01605
Phone: 7742349008
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.2/5

Endless Energy

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

Services Offered

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

Website: https://www.goendlessenergy.com/
Address: 184 Cedar Hill St, Marlborough, MA 01752
Phone: 5083572354
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Critical Mass Solar

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

Services Offered

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

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

EcoWatch Rating

4.1/5

Sunlight Solar Energy, Inc.

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

Services Offered

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

Website: https://www.sunlightsolar.com/
Address: 419 Lincoln St, Marlborough, MA 01752
Phone: 7813733263

Methodology: How We Ranked the Best Solar Companies in Princeton

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


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 Princeton

Even though solar panels can save you a good amount of money on utility bills over time, it's important to know the startup costs. Some key factors that dictate the cost of installing a solar panel system on your home and how much it could save you over time include:

  • Incentives: The federal solar investment tax credit currently allows you to decrease your taxes by 30% of the project cost. Your state and even local utility companies may also have various incentives that you can use. In addition, you can save about $21,000 over 20 years on your utility bills, before factoring in incentives.
  • How much sunlight your roof gets: This, plus the configuration of your roof, affects affect how much power your solar panels can produce.
  • The cost of energy for you: If your local utility rates are quite high, there's a better chance you'll end up with a higher return on your investment in solar panels. In Princeton, you can save an average of $82 a month on your electricity bills.
  • System size and type: Some models are more costly than others, so the one you want can raise or lower your initial investment. Plus, the more solar panels you need, the more it'll cost.

So is a solar system worth it? Whether you'd like to decrease your electric bills, carbon emissions or both, solar panels are a worthwhile investment for many Princeton homeowners.

Solar Savings Calculator for {{ solarcalc.name }}

For an idea of both how much you could save and impact the Earth by switching to solar power, you can try out the calculator below. You can also view our solar panel cost guide for Princeton, 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. SAVE NOW

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. This means that with an average cost of {{ solarcalc.array_cost() | currency }}, it would take {{ solarcalc.payback_period()|number:1 }} years to recover the cost of of your solar array.

Solar Incentives in Princeton

One of the good things about installing a solar panel system is earning government incentives. You can qualify for the federal solar investment tax credit (ITC) for the tax year you turn on your a solar system. You can also possibly use the ITC with other state and city rebates and benefits. You can find out about the incentives available to you in our article on solar incentives

Environmental Impact of Switching to Solar in Princeton

A lot of people want to do what they can to help save the environment, which in many cases is the primary reason they're interested in installing solar panels. But how much can using solar energy instead of traditional energy actually affect the environment? Something that can severely influence your carbon footprint is your commute time and how much you drive altogether. If you switch to solar power and have an electric car, you can greatly cut back on your carbon dioxide emissions by charging your car at home. If you go solar, your carbon dioxide emissions can be lowered by about 40 pounds every year. The advantages of solar power are infinite — just like solar power is! That's why so many Princeton residents have been happy with using solar energy.

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 Princeton, MA Solar Company Rankings FAQs

Which solar panel installer is the best in Princeton?

The highest-rated local solar company in Princeton is New England Clean Energy, with a rating of 4.01 stars.

What are some of the biggest advantages and disadvantages of going solar?

The main advantages of solar power are that it can lower or, in some cases, 100% erase your electricity bills, raise the value of your home and lower your carbon footprint. The main 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.

Is it worth putting solar panels on my roof?

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

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

Despite summer being the most popular time people install solar panels, the perfect time is actually winter. You can save money since there's not as much 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.