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10 Best Solar Companies in Stony Brook, NY

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Written By David Cusick

Last Updated June 2024

Rooftop solar energy is becoming increasingly popular for Stony Brook homeowners. A new solar energy system can help you provide a dependable source of power, add value to your property, and decrease your carbon footprint. Adopting solar energy can reduce your monthly energy expenses and decrease your carbon output. Before you get started, you want to make sure you find a reputable installer. That’s why, after conducting thorough research on providers, we put together a guide to the most trusted solar companies in Stony Brook. These providers offer dependable quality service.

Our Recommended Providers

Top Pick
4.2/5
  • Long warranty options
  • Insurance available on panels
  • Free Tesla Power Wall maintenance
Best Customer Service
3.9/5
  • Great customer service
  • Good warranty options
  • Excellent industry reputation

Top 10 Best Solar Companies in Stony Brook

SunPower

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400 Executive Blvd Suite 137, Elmsford, NY 10523 (800) 786-7693 us.sunpower.com

Reliable customer support

Informative resources

Clear pricing policy

Free quotes

Services Offered

Panel installation
Consultation
Battery storage

Kamtech Solar Solutions

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203 B Sheridan Blvd, Inwood, NY 11096 (718) 736-2862 kamtechsolar.com

Free quotes

Informative resources

Services Offered

Panel installation

SUNation Energy

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171 Remington Blvd, Ronkonkoma, NY 11779 (631) 750-9454 sunation.com

Clear pricing policy

Reliable customer support

Free quotes

Informative resources

Services Offered

Financing assistance
Panel installation
Cleaning and maintenance
Community solar projects
Consultation
Grid-tied solar system
Permit assistance
Tesla powerwall
Skilled repairs
Battery storage

Long Island Power Solutions

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2060 Ocean Ave, Ronkonkoma, NY 11779 (631) 348-0001 lipowersolutions.com

Clear pricing policy

Free quotes

Reliable customer support

Informative resources

Services Offered

Battery storage
Panel installation
Grid-tied solar system
Financing assistance
Consultation

Renew USA Solar

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360 Motor Pkwy Suite 1000, Hauppauge, NY 11788 (833) 736-3987 renewusa.com

Clear pricing policy

Free quotes

Reliable customer support

Services Offered

Panel installation
Skilled repairs
Cleaning and maintenance
Battery storage

NYS Essential Power

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13 Trade Zone Dr, Ronkonkoma, NY 11779 (631) 400-2680 nysessentialpower.com

Reliable customer support

Clear pricing policy

Prompt service delivery

Informative resources

Services Offered

Battery storage
Consultation
Panel installation

GreenLeaf Solar

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11 Technology Dr, Setauket- East Setauket, NY 11733 (631) 509-1747 gogreenleafsolar.com

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Reliable customer support

Clear pricing policy

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Services Offered

Solar carports
Panel installation

Surf Clean Energy

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111 Smithtown Bypass, Hauppauge, NY 11788 (866) 631-7873 surfcleanenergy.com

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Free quotes

Reliable customer support

Clear pricing policy

Services Offered

Consultation
Panel installation

Leviathan Solar

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1993 Pond Rd, Ronkonkoma, NY 11779 (631) 553-2732 leviathansolar.com

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Panel installation

Harmony Energy

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80 Orville Dr, Bohemia, NY 11716 (631) 244-1679 harmonyenergy.org

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Free quotes

Clear pricing policy

Informative resources

Services Offered

Consultation
Panel installation
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on solar companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How To Choose a Solar Company

Going solar can be a great way to save money on electricity costs and help the environment by reducing your carbon footprint using renewable energy. Here are some crucial factors to consider when determining whether a solar installer is trustworthy.

Check Licensing

Confirm that your solar installer is properly licensed. This help guarantee that the work is done correctly using the most up-to-date installation methods. New York regulators do not issue licenses to contractors, so you should check with your city or county government for its specific regulations and requirements.

Read Customer Reviews

Check review sites like TrustPilot, Google Reviews, and the Better Business Bureau (BBB) to see customer feedback about local solar companies. Detailed reviews can help you evaluate a company's dependability and customer service. Use caution with companies that have no reviews or mostly negative ones.

Compare Multiple Quotes

Get free, detailed quotes from three to five solar companies. A quote should list all costs and identify the solar parts included. Comparing several quotes can help you find the most cost-effective option.

Ask About the Warranty

Top-notch solar installations should include strong workmanship and performance warranties. A workmanship warranty covers installation defects, such as poor alignment, poor wiring, or cracks in the panels. A performance guarantee ensures a minimum energy output. Comprehensive guarantees indicate that a solar company believes in its work.

Evaluate Financing and Incentives

Solar energy can help lower your electric bills over time. When weighing the total price and value of solar panels, make sure to consider these factors.

  • Compare system purchase options: Solar panels can be purchased upfront or paid for over time through a loan or lease. Confirm all terms when financing, such as annual percentage rate (APR), fees, payment schedule, and ownership implications.
  • Research federal and state tax credits: There’s a 26% federal tax credit available for the full cost of solar systems until 2032. Many states also provide incentives. The credits can result in significant savings for solar buyers.
  • Look into utility rebates: More discounts might be available from local power companies looking to motivate homeowners to go solar. Contact your local utility provider to find out rebate values and qualification criteria, so you can determine your possible savings.

Cost of Solar Installation in Stony Brook

In Stony Brook, solar panels cost an average of $3,650 per kilowatt, with an average system size of 3.9 kilowatts. The typical Stony Brook homeowner spends $9,930 on their solar array after federal tax refunds. An estimate from a local provider will take into account additional information reflecting your desired system's panel type, required preliminary work, size, and capacity. In some cases, homeowners may prefer to lease solar panels to reduce upfront costs.

Stony Brook Solar Incentives Guide

Incentive Type: PACE Financing

Website: nyserda.ny.gov

Incentive Amount:

Locally determined

Incentive Type: Personal Tax Credit

Website: tax.ny.gov

Incentive Amount:

25% for solar-electric (PV) and solar-thermal systems; for third-party owned systems this is in reference to the aggregate amount owed under the contract rather than the amount owed in any single year

Incentive Type: Corporate Tax Credit

Incentive Amount:

$0.01/gallon for each percent of biodiesel

Incentive Type: Loan Program

Website: ny-sun.ny.gov

Incentive Amount:

Residential Customers: $1,500 - $25,000

Small Business and Not-for-Profit Organizations:
Participation Loans: up to $100,000 (at low interest rate)
On-Bill Recovery loans: $50,000 at 2%

Incentive Type: Sales Tax Incentive

Incentive Amount:

100% exemption

Incentive Type: Sales Tax Incentive

Incentive Amount:

Upon local authorization, 100% exemption from local sales tax

Incentive Type: Sales Tax Incentive

Website: tax.ny.gov

Incentive Amount:

100% exemption from state sales tax

Incentive Type: Property Tax Incentive

Website: tax.ny.gov

Incentive Amount:

Upon local adoption, 20% - 100% of real property taxes owed; varies by year and certification level

Incentive Type: Property Tax Incentive

Website: tax.ny.gov

Incentive Amount:

100% of the value added to the residence by the improvements

Incentive Type: Property Tax Incentive

Website: tax.ny.gov

Incentive Amount:

100% exemption for 15 years (unless local jurisdiction has opted out)

Incentive Type: Rebate Program

Website: ny-sun.ny.gov

Incentive Amount:

Incentive rates step down over time as MW goals are met. Incentive rates as of 11/27/2019 are:

Residential:
Long Island Region: $0.00/W (MW blocks have been fully subscribed)
Con Edison Region: $0.30/W
Upstate Region: $0.35/W
Low-to-Moderate income customers: $0.80/W (up to 10 kW)

Small Commercial (Non-Residential):Long Island Region: $0.00/W (MW blocks have been fully subscribed)
Con Edison Region: $0.60/W
Up State Region: $0.45/W

Multifamily Affordable Housing Adder: additional $0.40/W (up to 50 kW)

Incentive Type: Rebate Program

Website: psegliny.com

Incentive Amount:

Appliances
Advanced Power Strips: $10 - $20
Air Purifier: $25 - $50
Clothes Dryer: $50 - $250
Clothes Washer: $50
Dehumidifier: $30
Dishwasher: $50
Exhaust Fan: $20 - $25
Electric Freezer: $30
Heat Pump Water Heater: $650
Pool Pumps: $150 - $350
Refrigerator: $50
Refrigerator Recycling: $50

Lighting
Instant Rebates Vary by Product
Bulk Light Purchases: Up to $2 - $3/unit

Cooling & Heating
Central Air Conditioning: $450
Smart Thermostat: $85
Ground Source Heat Pump: $2,000/ton

Incentive Type: Rebate Program

Website: nyserda.ny.gov

Incentive Amount:

Small Systems (≤ 10 cooling tons): $1,500/cooling ton
Large Systems (> 10 cooling tons): $1,200/cooling ton

Incentive Type: Loan Program

Website: nyserda.ny.gov

Incentive Type: Other Incentive

Website: greenbank.ny.gov

Incentive Type: Personal Tax Credit

Website: tax.ny.gov

Incentive Amount:

$0.01/gallon for each percent of biodiesel

Incentive Type: Personal Tax Credit

Website: ecowatch.com

Incentive Amount:

30% federal tax credit for systems placed in service after 12/31/2021 and before 01/01/2033. Good for: solar water heat, solar photovoltaics, biomass, geothermal heat pumps, wind (small), fuel cells using renewable fuels.

Frequently Asked Questions About Solar in Stony Brook, NY

Generally speaking, a solar photovoltaic (PV) system can be used to power any household system or appliance that uses electricity. In the simplest case, you can use a solar water heating system.

With home solar PV, you can recoup the cost of the system over time, lower your home's carbon footprint, and gain additional energy independence.

It depends on your home's location and what type of panels you're installing. Since there's a moderate amount of snowfall in Stony Brook, your best time to get solar is in the spring and fall.

Absolutely. The grid in Stony Brook already uses a large share of renewable energy sources, and you may be able to sell your excess generated energy to your utility for additional cost savings.

Your installer can give you an estimate of what your energy bills will look like after you install solar panels. Generally, your energy bills will decrease significantly because you'll be using energy from the sun for free, instead of buying energy from the utility company. The average annual savings in Stony Brook amount to $895.

Ultimately, the answer will depend on your specific situation. You'll be eligible for a federal tax credit of up to 30% of the system's cost, as well as state or local incentives depending on where you are. As for insurance, you'll need to notify your insurer about your new solar panels. Your premium may increase due to added property values, but you'll have peace of mind if a covered event happens to the system.

Solar energy is on par with other forms of renewable energy. Their maintenance costs are low and today's systems can work in a variety of conditions.

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