15 Best Solar Companies in Stony Brook, NY (2024 Reviews)

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

  • Customer review scores
  • Service area for Stony Brook, NY
  • Company policies and services offered
  • Accreditations and certifications

Average Stony Brook homeowner saves $1,842/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated June 24, 2024

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 Stony Brook

As a homeowner or business owner in Stony Brook, you may be planning on switching to solar power and curious about the best solar companies in your local area. Solar could be a fantastic choice since it has a lot of perks. For most homeowners, the decision to invest in solar panels rests on how much they can save. The good news is solar can help most homeowners save a decent amount on their fairly high and increasing energy bills.


As you start your search for the best solar companies in Stony Brook, you might realize that there are a large number of providers to choose between. So, we’ve organized a curated list of the top solar companies in the area.We advise shopping around to get multiple quotes and comparing them to see which is the best installer for your home. To receive free, no-pressure quotes from vetted solar panel companies in Stony Brook, click the link below.

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

Solar Veteran

Trinity Solar

★★★★★
4.0
  • Many financing options
  • Family-owned and -operated
  • Makes charitable contributions
  • Limited service area
  • Relatively short workmanship warranty

EcoWatch Rankings for Solar Companies in Stony Brook

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

Kamtech Solar Solutions

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

Services Offered

  • Service icon Panel Installation

Website: http://kamtechsolar.com/
Address: 203 B Sheridan Blvd, Inwood, NY 11096
Phone: 7187362862
Outstanding Local Installer
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EcoWatch Rating

3.0/5

SunPower

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

Website: http://us.sunpower.com/
Address: 400 Executive Blvd Suite 137, Elmsford, NY 10523
Phone: 8007867693
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Ion Solar Pros

  • Pros icon Informative Resources
  • 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.ionsolarpros.com/
Address: 751 Straits Turnpike Suite 2000, Middlebury, CT 06762
Phone: 8605445362
Outstanding Local Installer
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EcoWatch Rating

5.0/5

GreenLeaf Solar

  • 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 Panel Installation
  • Service icon Solar Carports

Website: https://gogreenleafsolar.com/
Address: 11 Technology Dr, Setauket- East Setauket, NY 11733
Phone: 6315091747
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Leviathan 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

Website: https://leviathansolar.com/
Address: 1993 Pond Rd, Ronkonkoma, NY 11779
Phone: 6315532732
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Long Island Power Solutions

  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • 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 Grid-Tied Solar System
  • Service icon Panel Installation

Website: https://www.lipowersolutions.com/
Address: 2060 Ocean Ave, Ronkonkoma, NY 11779
Phone: 6313480001
Outstanding Local Installer
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EcoWatch Rating

4.8/5

SUNation Energy

  • Pros icon Free Quotes
  • 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 Cleaning and Maintenance
  • Service icon Tesla Powerwall
  • Service icon Grid-Tied Solar System
  • Service icon Skilled Repairs
  • Service icon Permit Assistance
  • Service icon Community Solar Projects
  • Service icon Battery Storage
  • Service icon Consultation
  • Service icon Panel Installation
  • Service icon Financing Assistance

Website: https://www.sunation.com/
Address: 171 Remington Blvd, Ronkonkoma, NY 11779
Phone: 6317509454
Outstanding Local Installer
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EcoWatch Rating

4.9/5

NYS Essential Power

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

Services Offered

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

Website: https://www.nysessentialpower.com/
Address: 13 Trade Zone Dr, Ronkonkoma, NY 11779
Phone: 6314002680
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Harmony Energy

  • 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 Consultation
  • Service icon Panel Installation

Website: http://www.harmonyenergy.org/
Address: 80 Orville Dr, Bohemia, NY 11716
Phone: 6312441679
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Hytech Home

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

Services Offered

  • Service icon Skilled Repairs
  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance
  • Service icon Consultation

Website: https://hytechhome.com/
Address: 6 Washington Ave, Bay Shore, NY 11706
Phone: 8883943111
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Surf Clean Energy

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

Services Offered

  • Service icon Consultation
  • Service icon Panel Installation

Website: https://surfcleanenergy.com/
Address: 111 Smithtown Bypass, Hauppauge, NY 11788
Phone: 8666317873
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

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

Website: https://renewusa.com/
Address: 360 Motor Pkwy Suite 1000, Hauppauge, NY 11788
Phone: 8337363987
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

US Solar Enterprise

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

Website: http://www.us-solar.net/
Address: 1320 Lincoln Ave # 13, Holbrook, NY 11741
Phone: 8772076527
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Marcor Solar

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

Services Offered

  • Service icon Skilled Repairs
  • Service icon Panel Installation
  • Service icon Financing Assistance

Website: https://www.marcorsolar.com/
Address: 135 Dale St, West Babylon, NY 11704
Phone: 6313549106
Outstanding Local Installer
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EcoWatch Rating

3.0/5

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  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Financing Assistance

Website: http://medfordsolarpower.com/
Address: 1602 Lad Ave, Medford, NY 11763
Phone: 6316074884

Methodology: How We Ranked the Best Solar Companies in Stony Brook

EcoWatch's solar experts analyzed each solar company in Stony Brook 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 Stony Brook


Below are some the criteria we examined specifically for New York 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 Stony Brook

Solar panels run off a free energy source — the sun — but to take advantage of this you will first need to pay to install your panels.The cost of solar and the savings it generates vary depending on some important factors such as:

  • How much electricity your household consumes: Homes that consume plenty of power each month may call for more solar panels and, consequently, be more costly, but will also enjoy more savings over time.
  • The amount of sunlight your home gets: Thanks to Stony Brook’s high amount of average daily sunlight, you should be able to save a decent amount on your energy bills.
  • The type of solar panels you’re planning on getting: Higher-efficiency panels are more highly priced, so that will affect your budget for your solar project.
  • Incentives: Tax-paying citizens who purchase and install a solar system this year can save 0 of their overall solar costs by using the federal solar investment tax credit. You can also save about $22,000 on your electricity bills over 20 years without incentives.

There are lots of good benefits of solar even with the upfront cost of installation. It can help the environment and your bank account. Additionally, it can boost the value of your home, resulting in even more benefits if you want to sell your home later.

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Solar Incentives in Stony Brook

Although a solar power system is typically a big investment, it can save you a lot of money over several years due to reduced energy bills and government incentives.Everyone can take advantage of the federal Solar Investment Tax Credit (ITC), which will let you claim 0 of how much your solar project cost when you file taxes, reducing the amount of taxes you owe that year. Additionally, there may be some state and city incentives that can save you some extra money too. Our article on solar incentives has more in-depth information on the incentives you can benefit from in Stony Brook.

Environmental Impact of Switching to Solar in Stony Brook

One of the reasons so many people are thinking of switching to solar power is to help bring down their environmental impact.You may be asking yourself – how much do solar panels do for the environment anyway? Using green energy for electricity in place of relying on nonrenewable energy sources is an impactful way to reduce your carbon footprint if you want to help reduce Stony Brook's large level of greenhouse gas emissions.In Stony Brook, the average household can reduce their carbon footprint by 100 pounds a year once they go solar. Since solar energy is abundant and generates electricity without free from carbon dioxide emissions, installing solar panels is one easy step you can take to help preserve the environment.

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

Solar Veteran

Trinity Solar

★★★★★
4.0
  • Many financing options
  • Family-owned and -operated
  • Makes charitable contributions
  • Limited service area
  • Relatively short workmanship warranty

EcoWatch's Stony Brook, NY Solar Company Rankings FAQs

What is the most reputable solar company in Stony Brook?

The best local solar company in Stony Brook is Kamtech Solar Solutions, with a rating of 4.80 stars.

Are solar panels really good for the environment?

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

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

Solar panels usually pay for themselves in about 11.1 years, but your solar payback period will vary depending on your utility costs. The higher your typical energy bill, the faster your solar panel system will recoup your installation costs.

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 more costly. 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, roof layout and desired energy output.

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.