15 Best Solar Companies in Stony Brook, NY (2025 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
Please enter a valid 5-digit zip code!
Average Stony Brook homeowner saves $1,842/year with solar panels
Why you can trust EcoWatch
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.
EcoWatch Rankings for Solar Companies in Stony Brook

GreenLeaf Solar
Informative Resources
Free Quotes
Reliable Customer Support
Clear Pricing Policy
Limited information available on website
Services Offered
Solar Carports
Panel Installation



Marcor Solar
Free Quotes
Informative Resources
Clear Pricing Policy
Family-Operated Business
Limited information available on website
Services Offered
Panel Installation
Financing Assistance
Skilled Repairs

Precision Solar
Free Quotes
Reliable Customer Support
Clear Pricing Policy
Limited information available on website
Services Offered
Grid-Tied Solar System
Permit Assistance
Panel Installation
Financing Assistance


Solar Pro
Clear Pricing Policy
Free Quotes
Reliable Customer Support
Informative Resources
Limited information available on website
Services Offered
Panel Installation
Permit Assistance
Consultation

SSAY Solar Savings All Year
Reliable Customer Support
Informative Resources
Clear Pricing Policy
Free Quotes
Limited information available on website
Services Offered
Panel Installation
Consultation
System Decommissioning

Synergy Smart Homes - Connecticut Solar & Elite SunPower Dealer
Clear Pricing Policy
Reliable Customer Support
Free Quotes
Limited information available on website
Services Offered
Cleaning and Maintenance
Skilled Repairs
Battery Storage
Consultation
Panel Installation
Tesla Powerwall
Financing Assistance

Long Island Power Solutions
Free Quotes
Informative Resources
Clear Pricing Policy
Reliable Customer Support
Limited information available on website
Services Offered
Consultation
Grid-Tied Solar System
Financing Assistance
Battery Storage
Panel Installation

NYS Essential Power
Clear Pricing Policy
Prompt Service Delivery
Reliable Customer Support
Informative Resources
Limited information available on website
Services Offered
Battery Storage
Panel Installation
Consultation


Solar Mentor
Clear Pricing Policy
Reliable Customer Support
Prompt Service Delivery
Free Quotes
Informative Resources
Limited information available on website
Services Offered
Consultation
Financing Assistance
Cleaning and Maintenance
Permit Assistance
Panel Installation

GreenLogic Energy
Informative Resources
Reliable Customer Support
Prompt Service Delivery
Clear Pricing Policy
Free Quotes
Limited information available on website
Services Offered
Panel Installation
Battery Storage
Consultation

Ion Solar Pros
Free Quotes
Reliable Customer Support
Informative Resources
Clear Pricing Policy
Limited information available on website
Services Offered
Battery Storage
Panel Installation
Consultation
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.
Solar Savings Calculator for {{ solarcalc.name }}
If you'd like to know what your impact could be if you switch to solar, you can use the calculator below. You can also view our solar panel cost guide for Stony Brook, NY.
{{ 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 |
Switching to solar in {{ solarcalc.name }} can save you {{ solarcalc.total_savings() | currency }} over the course of {{ solarcalc.time_period|number:0 }} years.
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.
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 GreenLeaf Solar, with a rating of 5.00 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.