15 Best Solar Companies in Stonington, CT (2025 Reviews)

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

  • Customer review scores
  • Service area for Stonington, CT
  • Company policies and services offered
  • Accreditations and certifications

Average Stonington homeowner saves $1,921/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 Stonington

Looking for the best solar companies in Stonington? Installing solar panels is an exciting home addition that many homeowners find beneficial for their wallets, communities and the planet. Solar panels can be expensive, but switching to solar will save you money on your energy bills in the long term. In fact, you can look forward to saving about $23,000 over 20 years.


If you want to take advantage of the many perks of solar, we’re here to help you narrow down your options to find the Stonington solar installer that’s right for you.To get an idea of how much it might cost to install solar panels on your roof, you can click the button below to get a quote from a certified installer near you.

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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 Stonington

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Ion Solar Pros

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

Website: http://www.ionsolarpros.com/
Address: 751 Straits Turnpike Suite 2000, Middlebury, CT 06762
Phone: 8605445362
Outstanding Local Installer
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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 Skilled Repairs
  • Service icon Consultation
  • Service icon Battery Storage
  • Service icon Permit Assistance
  • Service icon Cleaning and Maintenance
  • Service icon Grid-Tied Solar System

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

Neighborhood Solar

  • Pros icon Free Quotes
  • 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 System Decommissioning
  • Service icon Panel Installation
  • Service icon Consultation
  • Service icon Cleaning and Maintenance

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

DO IT RIGHT SOLAR

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

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 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 Consultation
  • 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

Synergy Smart Homes - Connecticut Solar & Elite SunPower Dealer

  • 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 Financing Assistance
  • Service icon Battery Storage
  • Service icon Consultation
  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance
  • Service icon Tesla Powerwall
  • Service icon Skilled Repairs

Website: https://www.solarinstallationcontractor.com/
Address: 20 Tuttle Pl Suite 7, Middletown, CT 06457
Phone: 8603415001
Outstanding Local Installer
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EcoWatch Rating

4.9/5

GreenLogic Energy

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

Services Offered

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

Website: https://www.greenlogic.com/
Address: 97 N Sea Rd #3, Southampton, NY 11968
Phone: 6317715152
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Sunwatt Solar

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

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

Everlast Energy

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

Services Offered

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

Website: http://everlastenergyct.com/
Address: 1344 Silas Deane Hwy Suite 515, Rocky Hill, CT 06067
Phone: 8603623129
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
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EcoWatch Rating

4.9/5

Earthlight Technologies

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

Services Offered

  • Service icon Consultation
  • Service icon Tesla Powerwall
  • Service icon Panel Installation
  • Service icon Battery Storage
  • Service icon Skilled Repairs

Website: https://www.earthlighttech.com/
Address: 128 West Rd, Ellington, CT 06029
Phone: 8608719700
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Rooftop Power

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

Website: http://www.rooftoppowerco.com/
Address: 275 W Natick Rd Suite 800, Warwick, RI 02886
Phone: 8337877697
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

Element Energy Systems (E2SYS)

  • Pros icon Free Quotes
  • 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 Consultation
  • Service icon Battery Storage
  • Service icon Solar Carports
  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance

Website: https://www.e2sys.com/
Address: 7470 Sound Ave, Mattituck, NY 11952
Phone: 6317797993
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

Green Power Energy

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

Services Offered

  • Service icon Skilled Repairs
  • Service icon Battery Storage
  • Service icon Consultation
  • Service icon Panel Installation
  • Service icon Permit Assistance
  • Service icon Financing Assistance

Website: http://www.greenpowerenergy.com/
Address: 42 Ozick Dr Suite 3, Durham, CT 06422
Phone: 8669835793
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Savkat Solar

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

Website: https://savkat.com/
Address: 71 Dolphin Rd, Bristol, CT 06010
Phone: 8608314141

Methodology: How We Ranked the Best Solar Companies in Stonington

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


Below are some the criteria we examined specifically for Connecticut 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 Stonington

Solar panels are powered by a free energy source — the sun — but before you can take advantage of this you first need to pay to install your panels.A few important factors that dictate the cost of installing a solar panel system on your home and how much money you could save over time are:

  • Incentives: Something that can save you money on 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 money on your utility bills, which can give you an average of $23,000 of savings over 20 years.
  • Typical energy usage: The more electricity your home consumes on average and the larger your current energy bills are, the more money you could save by making the switch to solar.
  • System size and type: Some models are more expensive than others, so the one you want to get can raise or lower your initial investment. Plus, the more solar panels you need to get, the more it'll cost.
  • Average daily sunlight: Since Stonington gets a decent amount of average daily sunlight, your solar panels can generally produce enough energy to power your whole home, which influences how much you can save on your energy bills.

Though a solar panel system costs a sizable chunk of money upfront, it can save you a considerable amount over time. The question of how much, though, depends on a number of factors, like the amount of daily direct sunlight available and your current power bills.

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If you're curious how much you could impact the environment if you switch to solar, you can use the calculator below. You can also view our solar panel cost guide for Stonington, CT.

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Solar Incentives in Stonington

Although a solar power system is typically a big investment, it can save you much money over the lifespan of your solar panels because of lower power bills and government incentives.Everyone can take advantage of the federal Solar Investment Tax Credit (ITC), which will let you claim 0 of your project costs when you file taxes, lowering the amount of taxes you owe that year. In addition, there may be some local incentives you can benefit from too. Take a look at our article on solar incentives to find out what incentives are available to you.

Environmental Impact of Switching to Solar in Stonington

There are a few primary reasons why people are interested in solar energy: for the good of their bank accounts and the planet.But how much can switching to solar actually help the environment? For people who want to help cut back on greenhouse gas emissions, using solar power is an easy decision, especially since Stonington produces a fair amount of carbon dioxide emissions from its energy generation.After you go solar, your carbon footprint can be reduced by about 40 pounds a year. The great things about solar power are abundant — just like solar power is! That's why so many Stonington residents have been happy with committing to solar.

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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 Stonington, CT Solar Company Rankings FAQs

What is the most reputable solar installer in Stonington?

In Stonington, Ion Solar Pros is the best 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 home.

What is the negative environmental impact of making solar panels?

Producing solar panels requires chemicals and produces toxic waste that can be harmful for the environment, which is the main drawback of solar panels.

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

Solar panels generally pay for themselves in about 10.9 years, but your solar payback period will vary based on your utility costs. The higher your typical power bill, the faster your solar panel system will recoup your installation costs.

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

Solar panel capacity is rated depending on how many watts of power they produce under standard testing conditions. Since each panel can usually produce about 250 to 400 watts per hour, the average household will need 20 to 35 panels.

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.