15 Best Solar Companies in St. James, NY (2024 Reviews)

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

  • Customer review scores
  • Service area for St. James, NY
  • Company policies and services offered
  • Accreditations and certifications

Average St. James homeowner saves $1,842/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated February 01, 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 St. James

As a homeowner in St. James, you may be considering switching to solar power and wondering about the best solar companies in your area. Solar could be a fantastic choice since it has lots of perks. Solar panels aren't just good for the Earth — your bank account will be better off too. After switching to solar power, you can save an average of $22,000 over 20 years, and this doesn't even include incentives.


If you want to start making use of the great amount of perks of solar, we’re here to help you narrow down your options to find the St. James solar installer that’s right for you.To help you understand if solar panels are something you should get for your home, you can get a free, no-obligation quote from one of the best solar companies in St. James by clicking the 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 St. James

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.0/5

SunPower Corporation

  • Pros icon Free Quotes
  • 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 Consultation
  • Service icon Battery Storage
  • Service icon Residential Panels
  • Service icon Financing Assistance

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

3.0/5

SunPower Master Dealer SOLAR

  • 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 Permit Assistance
  • Service icon Commercial Panels
  • Service icon Residential Panels

Website: http://www.kamtechsolarny.com/
Address: 117 Bay 8th St, Brooklyn, NY 11228
Phone: 8002945045
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Sunrun Solar

  • 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 Battery Storage
  • Service icon Residential Panels

Website: https://www.sunrun.com/
Address: 10 New Maple Ave, Pine Brook, NJ 07058
Phone: 8333245886
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Leviathan Solar

  • 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 Residential Panels

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

5.0/5

Harmony 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 Residential Panels
  • Service icon Consultation

Website: http://www.harmonyenergy.org/
Address: 80 Orville Dr, Bohemia, NY 11716
Phone: 6312441679
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 Free Quotes
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Consultation
  • Service icon Financing Assistance
  • Service icon Residential Panels
  • Service icon Commercial Panels

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

4.9/5

NYS Essential Power

  • Pros icon Informative Resources
  • 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 Commercial Panels
  • Service icon Battery Storage
  • Service icon Consultation
  • Service icon Residential Panels

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

4.7/5

SUNation 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 Skilled Repairs
  • Service icon Battery Storage
  • Service icon Tesla Powerwall
  • Service icon Commercial Panels
  • Service icon Financing Assistance
  • Service icon Maintenance
  • Service icon Community Solar Projects
  • Service icon Permit Assistance
  • Service icon Residential Panels
  • Service icon Consultation

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

4.8/5

Hytech Home

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

Services Offered

  • Service icon Consultation
  • Service icon Solar Panel Upgrades
  • Service icon Maintenance
  • Service icon Commercial Panels
  • Service icon Skilled Repairs
  • Service icon Residential Panels

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

GreenLeaf 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 Consultation
  • Service icon Commercial Panels
  • Service icon Residential Panels
  • Service icon Maintenance

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

EcoWatch Rating

3.0/5

Surf Clean Energy

  • 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 Residential Panels
  • Service icon Consultation

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

EcoWatch Rating

3.0/5

Bohemia Commercial Solar Clean Energy Solutions

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

Services Offered

  • Service icon Battery Storage
  • Service icon Residential Panels
  • Service icon Commercial Panels
  • Service icon Consultation

Website: http://bohemiasolarcleanenergysolutions.com/
Address: 1424 County Road 93, Bohemia, NY 11716
Phone: 6316997022
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Marcor Solar

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

Services Offered

  • Service icon Financing Assistance
  • Service icon Residential Panels
  • Service icon Skilled Repairs
  • Service icon Maintenance

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

US Solar Enterprise

  • 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 Residential Panels
  • Service icon Financing Assistance
  • Service icon Commercial Panels
  • Service icon Battery Storage

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

3.0/5

Renew USA 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 Maintenance
  • Service icon Battery Storage
  • Service icon Skilled Repairs
  • Service icon Residential Panels

Website: https://renewusa.com/
Address: 360 Motor Pkwy Suite 1000, Hauppauge, NY 11788
Phone: 8337363987

Methodology: How We Ranked the Best Solar Companies in St. James

EcoWatch's solar experts analyzed each solar company in St. James 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 St. James


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 St. James

While solar panels can save you a good amount of money on power bills over time, it’s necessary to take into consideration the startup costs.The cost of solar and the savings it generates vary depending on some key factors such as:

  • How much you spend on energy: The typical family in St. James pays around $1,500 a year on home energy use alone, so you could end up with that much in savings.
  • System size and type: Some models are more expensive than others, so the one you choose can raise or lower your upfront cost. Plus, the more solar panels you need to get, the more it'll cost.
  • Incentives: The federal solar investment tax credit currently allows you to reduce your taxes by 0 of the project cost. Your state and city may also have incentives and rebates that you can use. Plus, you can save about $22,000 over 20 years on your utility bills, without incentives.
  • Your home's orientation toward the sun: This, and the configuration of your roof, affects affect how much energy your solar panels can produce.

Solar is a profitable investment for most homeowners. You can make your own energy instead of paying for it from a utility company and benefit from solar tax credits and rebates, all while helping preserve the Earth.

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Solar Incentives in St. James

If you’re planning on making the switch to solar power, a variety of government incentives and subsidies can drastically lower the cost of the project and speed up the return on your investment.These incentives usually take the form of cash rebates, tax benefits and/or solar renewable energy credits. They can reduce the cost you pay for installing solar panels by 0, upwards of 50% depending on where you live. Check out our article on solar incentives to learn what incentives you can take advantage of.

Environmental Impact of Switching to Solar in St. James

An important reason so many are thinking of installing solar panels is to help lower their environmental impact.Many homeowners might be wondering how much exactly they can impact the environment by switching to solar in St. James, though. In a city like St. James where energy use is somewhat high, making the switch to solar power is a great idea for people who want to do their part for the environment.In St. James, the average person can lower their carbon footprint by 100 pounds a year once they go solar. For those who want to help the environment, the upfront cost of solar is a small price to pay for offsetting your carbon emissions.

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 St. James, NY Solar Company Rankings FAQs

Which solar company is the best in St. James?

In St. James, SunPower Corporation is the top local solar company. Our team of experts rates it 4.00 stars, so it's a good choice if you're looking to add solar panels to your house.

What are some of the major advantages and disadvantages of adopting solar power?

A few of the biggest pros are that it lowers your electricity bills, it’s environmentally friendly, and it can provide a significant return on your investment (ROI). The most notable cons are that solar panels don’t work as well when there’s limited direct sunlight, there is a high upfront cost and solar panels can be an eyesore.

Are solar panels worth it?

Solar panels can be a great investment for a majority of homeowners, but truthfully, they might not be worth it for everyone. If your home doesn't get enough sunlight or your power bills are already reasonably low, solar panels might not be for you.

What is the efficiency of solar panels?

Solar panel efficiency is the amount of energy from the sun that is converted into electricity. Most panels today have an efficiency rating between 15 and 20%. If your panels are more efficient, you'll need less of them to meet your home's energy needs.

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.