15 Best Solar Companies in Southold, NY (2025 Reviews)

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

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

Average Southold homeowner saves $2,024/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 Southold

Thinking of going solar but not sure which company would be the best one for you? Although it can be hard to pick a solar company, the effort will pay off because going solar has many good benefits. One of the key reasons residents of Southold, where the average energy bill is pretty high, want to go solar is to decrease their monthly expenses.


If you’re considering going solar, the first step to make is to find the best solar companies in Southold and compare quotes. That’s why we went ahead and came up with a list of the best solar companies for you.To help you find out 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 Southold by clicking the button below.

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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 Southold

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Ion Solar Pros

  • 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
  • Service icon Battery Storage

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

Synergy Smart Homes - Connecticut Solar & Elite SunPower Dealer

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

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

5.0/5

GreenLeaf Solar

  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • 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 Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • 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

5.0/5

Harmony Energy

  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • 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: http://www.harmonyenergy.org/
Address: 80 Orville Dr, Bohemia, NY 11716
Phone: 6312441679
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Neighborhood 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 Cleaning and Maintenance
  • Service icon Panel Installation
  • Service icon System Decommissioning
  • Service icon Consultation

Website: https://www.neighborhoodsolar.us/
Address: 140 Spring St, Newport, RI 02840
Phone: 4012390529
Outstanding Local Installer
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EcoWatch Rating

4.9/5

GreenLogic Energy

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

Services Offered

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

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

Everlast Energy

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

Services Offered

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

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

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 Battery Storage
  • Service icon Panel Installation
  • Service icon Consultation

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

4.9/5

Long Island Power Solutions

  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • 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 Panel Installation
  • Service icon Financing Assistance
  • Service icon Grid-Tied Solar System

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

Earthlight Technologies

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

Services Offered

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

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

Element Energy Systems (E2SYS)

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

Services Offered

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

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

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

EcoWatch Rating

4.8/5

Savkat Solar

  • Pros icon Free Quotes
  • 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 Consultation
  • Service icon Financing Assistance
  • Service icon Grid-Tied Solar System
  • Service icon Battery Storage
  • Service icon Panel Installation

Website: https://savkat.com/
Address: 71 Dolphin Rd, Bristol, CT 06010
Phone: 8608314141
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

Hytech Home

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

Website: https://hytechhome.com/
Address: 6 Washington Ave, Bay Shore, NY 11706
Phone: 8883943111

Methodology: How We Ranked the Best Solar Companies in Southold

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


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 Southold

For a lot of homeowners, the decision to invest in solar panels comes down to the cost.The cost and possible savings vary depending on a few key factors such as:

  • Incentives: Along with the federal Solar Investment Tax Credit (ITC), which lets you deduct 0 of your overall installation cost, your local government may offer additional tax exemptions, credits or rebates that will help you save even more. Aside from incentives, you can save an average of $24,000 over 20 years with your system, too.
  • The amount of sunlight your roof gets: This, and how your roof is set up, affects affect how much electricity your solar panels can produce.
  • Your income and budget: This determines what kind of solar panels you can buy.
  • Your energy bills: This will affect your savings. In Southold, the average homeowner can save about $1,600 a year on their electricity bills.

Because of the cost of solar panels being lower than before as well as local and federal solar incentives, they are a worthwhile investment for many homeowners.

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Solar Incentives in Southold

Since solar power is a cleaner source of energy than traditional energy sources, there are a number of government incentives in place to encourage its adoption.You are eligible for the federal solar investment tax credit (ITC) for the tax year you turn on your a solar panel system. You can also potentially pair the ITC with other state and city incentives. For comprehensive information about local incentives, check out our article on solar incentives.

Environmental Impact of Switching to Solar in Southold

If you’re thinking of adding solar panels to your home, one of the principal reasons why may be to reduce your greenhouse gas emissions.But how much can using solar energy instead of traditional energy actually affect the environment? Something that can dramatically influence your carbon footprint is how long your commute is and how much you drive generally. If you switch to solar power and have an electric car, you can greatly reduce your carbon dioxide emissions by charging your car at home.Because solar panels don’t release greenhouse gas emissions into the atmosphere when generating electricity, they’re a good swap for traditional energy sources. In fact, you could expect to reduce your carbon dioxide emissions by about 40 pounds each year. For people who want to help the environment, the upfront cost of solar is a small price to pay for offsetting your carbon emissions.

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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 Southold, NY Solar Company Rankings FAQs

What is the best solar installer in Southold?

In Southold, Ion Solar Pros is the best local solar company. Our team of experts rates it 4.90 stars, so it's a great choice if you're looking to install solar panels on your home.

Are solar panels really good for the environment?

Producing solar panels needs to use chemicals and produces toxic waste that can be harmful for the environment, which is the main negative thing about solar panels.

Is it worth putting solar panels on my roof?

Solar panels require a considerable upfront investment that costs over ten thousand dollars, but whether or not solar panels are worth it depends on a collection of factors like how much you pay for electricity and the amount of direct sunlight your roof gets.

What is solar panel capacity and how much do I need for my house?

Solar panel capacity is rated based on the amount of power they generate 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.