15 Best Solar Companies in Greenwich, CT (Mar 2023 Review)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Greenwich based on:
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Customer review scores
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Solar installers near you
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Company policies and services offered
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Accreditations and certifications
Please enter a valid 5-digit zip code!
Updated March 14, 2023
Why you can trust EcoWatch
Best solar companies in Greenwich
If you're a home or business owner looking to make the most of the solar incentives in Greenwich, it can be challenging to narrow down which company to choose. But, the process is worth it since adopting solar energy is typically a good choice. Because solar panels produce their own electrical power, they can vastly offset your electricity bill each month, if not entirely eliminate it. In fact, you could end up with about $24,000 of savings over 20 years.
If you're thinking about going solar, the first step to make is to find the best solar companies in Greenwich and compare quotes. The good news is we did the hard work and put together a list of the best solar companies for you. To get a sense of what it could cost to install solar panels on your roof, you can click the button below to be connected to a certified installer near you.
Best National Provider
SunPower
- 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
- Great warranty coverage
- Representatives are experts on local policies
- Concierge service ensures steady communication
- Slightly limited service offerings
Best Technology
Tesla Energy
- Price-match guarantee
- Sleek, efficient, and durable solar panels
- Best solar battery on the market
- Some reported issues with customer service
- Customer service varies by local dealer
EcoWatch Rankings for Solar Companies in Greenwich

Phoenix Energy
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Can browse portfolio on website
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Educational sales approach
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Assists with maximizing rebate
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More transparent pricing than competitors
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Excellent reputation
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Limited information available on website
Services Offered
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Solar Panels

NJ Solar Panels
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Offers a free quote process
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Educational sales approach
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More transparent pricing than competitors
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Excellent reputation
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Limited information available on website
Services Offered
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Solar Panels

Core Development Group
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NABCEP-certified technicians
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More transparent pricing than competitors
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Custom system designs
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Excellent reputation
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Limited information available on website
Services Offered
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Solar Batteries
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Commercial Solar Services
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Solar Panels

Eferon Solar Solutions
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NABCEP-certified technicians
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Educational sales approach
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More transparent pricing than competitors
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Excellent reputation
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Limited information available on website
Services Offered
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Commercial Solar Services
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Solar Panels

Prime Energy Solar
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Educational sales approach
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More transparent pricing than competitors
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Excellent reputation
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Limited information available on website
Services Offered
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Maintenance and Repairs
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Solar Panels
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Solar Roof Shingles
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Commercial Solar Services

PurePoint Energy
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More transparent pricing than competitors
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Educational sales approach
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Custom system designs
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Can browse portfolio on website
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NABCEP-certified technicians
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Assists with maximizing rebate
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Excellent reputation
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Limited information available on website
Services Offered
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Solar Batteries
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Commercial Solar Services
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Solar Panels

Install Sun
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Can browse portfolio on website
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Educational sales approach
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More transparent pricing than competitors
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Excellent reputation
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Limited information available on website
Services Offered
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Solar Panels
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Removal & Reinstallation
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Commercial Solar Services
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Maintenance and Repairs

Power Marketing Group, LLC
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Educational sales approach
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More transparent pricing than competitors
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Custom system designs
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Excellent reputation
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Limited information available on website
Services Offered
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Commercial Solar Services
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Solar Panels

Alien Fuel
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NABCEP-certified technicians
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Educational sales approach
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Assists with maximizing rebate
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More transparent pricing than competitors
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Excellent reputation
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Limited information available on website
Services Offered
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Commercial Solar Services
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Solar Panels

Brooklyn SolarWorks
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Can browse portfolio on website
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Educational sales approach
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More transparent pricing than competitors
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Excellent reputation
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Limited information available on website
Services Offered
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Solar Panels
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Commercial Solar Services

UGE Solar Systems LLC
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Educational sales approach
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More transparent pricing than competitors
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Excellent reputation
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Limited information available on website
Services Offered
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Solar Panels
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Commercial Solar Services

Beyond Green Construction
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Can browse portfolio on website
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Educational sales approach
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Speedy and efficient installations
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Family owned and operated
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Excellent reputation
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Limited information available on website
Services Offered
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Solar Panels
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Commercial Solar Services

Grid City Electric
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More transparent pricing than competitors
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Educational sales approach
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Family owned and operated
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Custom system designs
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Has an online quote form
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Can browse portfolio on website
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NABCEP-certified technicians
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Assists with maximizing rebate
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Excellent reputation
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Limited information available on website
Services Offered
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Solar Panels
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Commercial Solar Services

Sunshine Solar Technologies, Inc.
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More transparent pricing than competitors
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Offers a free quote process
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Educational sales approach
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Custom system designs
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Can browse portfolio on website
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Excellent reputation
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Limited information available on website
Services Offered
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Commercial Solar Services
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Solar Panels

Long Island Solar Sales
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Educational sales approach
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Licensing and credentials transparency
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More transparent pricing than competitors
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Excellent reputation
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Limited information available on website
Services Offered
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Solar Batteries
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Commercial Solar Services
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Solar Panels
Solar Company Ranking Methodology
Click here to see a more detailed overview of our solar company ranking methodology.
The Cost and Benefits of Solar in Greenwich
When deciding on a solar company, most homeowners or business owners wonder about the costs above all. The installation cost is just one important factor you should take into account when looking into getting solar panels. How much it'll cost and how much you can save depend on things including:
- Your income and budget: This shapes what type of solar panels you can afford.
- How much energy your household consumes: Homes that consume lots of electricity each month may call for more solar panels and, as a result, be more costly, but will also save more on their energy bills over time.
- Incentives: The federal solar investment tax credit currently lets you decrease your taxes by 30% of the project cost. Your state may also have incentives and rebates that you can take advantage of. Additionally, you can save about $24,000 over 20 years on your utility bills, without incentives.
- Average daily sunlight: Since Greenwich gets a decent amount of average daily sunlight, your solar panels can generally generate enough energy to power your whole home, which impacts how much you can save on your energy bills.
There are several wonderful benefits of solar despite the upfront cost of installation. It can help the Earth and your wallet. Plus, it can raise the value of your home, resulting in even more benefits if you choose to sell your home later.
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Solar Incentives in Greenwich
In order to increase the adoption of solar power, federal and local governments — and even some utility companies — offer incentives to help make going solar more economically viable and accessible. These incentives usually consist of cash rebates, tax benefits and/or solar renewable energy credits. They can reduce the cost you pay for installing solar panels by 30%, upwards of 50% depending on your location. Our article on solar incentives has more detailed information on the incentives you can benefit from in Greenwich.
Environmental Impact of Switching to Solar in Greenwich
There are many reasons to trade traditional energy for solar power, like saving on electricity bills and helping to reduce your carbon footprint. Many homeowners might be wondering how much exactly they can impact the environment by switching to solar in Greenwich, though. Everyone can help the environment by switching to solar energy, but homes that use a lot of energy will have a bigger impact. Since solar panels don't release CO2 emissions into the atmosphere when creating electricity, they're a good swap for traditional energy sources. In fact, you could look forward to lowering your carbon dioxide emissions by about 40 pounds each year. If you want to do your part for the environment, you'll likely get that there are many advantages to adopting solar power other than just saving money on electricity. You can also help protect the environment, which some would argue is invaluable.
Best National Provider
SunPower
- 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
- Great warranty coverage
- Representatives are experts on local policies
- Concierge service ensures steady communication
- Slightly limited service offerings
Best Technology
Tesla Energy
- Price-match guarantee
- Sleek, efficient, and durable solar panels
- Best solar battery on the market
- Some reported issues with customer service
- Customer service varies by local dealer
EcoWatch's Greenwich, CT Solar Company Rankings FAQs
Which solar company is the best in Greenwich?
In Greenwich, Phoenix Energy is the best local solar company. Our team of experts rates it 5.00 stars, so it's a good choice if you're planning to add solar panels to your roof.
What are the best and worst things about solar power?
The biggest advantages of solar power are that it can decrease or, for some, entirely eradicate your electricity bills, improve your home's value and cut back on your carbon footprint. The biggest disadvantages are that solar panels can be pricey to install, you may not save a lot if you don't use a lot of electricity and whether you can install solar panels depends on your roof configuration.
Is it worth installing solar panels on my home?
Solar panels can be a beneficial investment for lots of homeowners, but frankly, they might not be worth it for everyone. If your home doesn't get a lot of direct sunlight or your energy bills are already fairly low, solar panels might not be for you.
What is the efficiency of solar panels?
Usually, solar panels are about 15 to 25% efficient, meaning they can convert that percentage of the sun's energy into usable electricity.
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.