15 Best Solar Companies in Greenwich, NJ (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Greenwich based on:
Customer review scores- Service area for Greenwich, NJ
- Company policies and services offered
- Accreditations and certifications
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Average Greenwich homeowner saves $1,079/year with solar panels
Why you can trust EcoWatch
Best Solar Companies in Greenwich
Choosing the best solar panel installation company for your house is an important decision, but it's one that can pay off big in Greenwich. Solar panels aren't just good for the Earth — your wallet will thank you too. Once you switch to solar power, you can save an average of $13,000 over 20 years, and this doesn't even include incentives.
In this article, we’ll help you narrow in on the best options in your area.To start getting free quotes from the best solar companies in Greenwich, you can click "get quote" below.
Best Regional Coverage
Momentum Solar
- Great warranty coverage
- Representatives are experts on local policies
- Concierge service ensures steady communication
- Slightly limited service offerings
Best for Leasing
Sunrun
- 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 Greenwich
SunPower
Clear Pricing Policy- Free Quotes
- Informative Resources
- Reliable Customer Support
Limited information available on website
Services Offered
Panel Installation- Battery Storage
- Consultation
SunPower Builders
- Informative Resources
- Limited information available on website
Services Offered
- Panel Installation
Public Service Solar, LLC
- Prompt Service Delivery
- Free Quotes
- Clear Pricing Policy
- Informative Resources
- Reliable Customer Support
- Limited information available on website
Services Offered
- Panel Installation
- Permit Assistance
- Consultation
Exact Solar
- Informative Resources
- Reliable Customer Support
- Free Quotes
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Panel Installation
- Permit Assistance
- Consultation
- Cleaning and Maintenance
MACK Solar and Roofing
- Clear Pricing Policy
- Informative Resources
- Free Quotes
- Reliable Customer Support
- Limited information available on website
Services Offered
- Financing Assistance
- Panel Installation
- Skilled Repairs
- Cleaning and Maintenance
Impact Solar LLC
- Informative Resources
- Free Quotes
- Reliable Customer Support
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Battery Storage
- Panel Installation
- Consultation
- Financing Assistance
Endless Energy
- Free Quotes
- Reliable Customer Support
- Limited information available on website
Services Offered
- Panel Installation
TerraSol Energies, Inc.
- Informative Resources
- Clear Pricing Policy
- Reliable Customer Support
- Limited information available on website
Services Offered
- Panel Installation
Lumina Solar PA
- Free Quotes
- Informative Resources
- Clear Pricing Policy
- Reliable Customer Support
- Limited information available on website
Services Offered
- Cleaning and Maintenance
- Skilled Repairs
- Consultation
- Permit Assistance
- Grid-Tied Solar System
- Panel Installation
Advisor Solar
- Reliable Customer Support
- Informative Resources
- Limited information available on website
Services Offered
- Cleaning and Maintenance
- Panel Installation
Finray Solar
- Clear Pricing Policy
- Informative Resources
- Limited information available on website
Services Offered
- Panel Installation
- Financing Assistance
- Community Solar Projects
SI Solar
- Free Quotes
- Informative Resources
- Limited information available on website
Services Offered
- Panel Installation
Reliable Power & Solar
- Reliable Customer Support
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Skilled Repairs
- Panel Installation
- Financing Assistance
- Permit Assistance
- Cleaning and Maintenance
Brooklyn SolarWorks
- Clear Pricing Policy
- Reliable Customer Support
- Informative Resources
- Free Quotes
- Limited information available on website
Services Offered
- Grid-Tied Solar System
- Consultation
- Panel Installation
Mpower Solar
- Free Quotes
- Clear Pricing Policy
- Reliable Customer Support
- Limited information available on website
Services Offered
- Panel Installation
- Permit Assistance
- Consultation
- Financing Assistance
Methodology: How We Ranked the Best Solar Companies in Greenwich
EcoWatch's solar experts analyzed each solar company in Greenwich 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 Greenwich
Below are some the criteria we examined specifically for New Jersey 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 Greenwich
Solar panels are powered by a free energy source — the sun — but before you can take advantage of this you will need to pay to install your system.The installation cost is just one important factor you should bear in mind when looking into getting solar panels. How much it'll cost and how much you can save depend on things such as:
- Electricity consumption: The average home in Greenwich doesn’t use much energy, and as a result may not see as many savings on their power bills.
- 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 influences how much your electricity bills will be.
- Incentives: Along with the federal Solar Investment Tax Credit (ITC), which gives you a tax credit currently worth 0 of your total installation cost, your state or local government may offer additional tax exemptions, credits or rebates that can help you save even more. Aside from incentives, you can save an average of $13,000 over 20 years with your system, too.
- Choice of solar panels: The type of solar panels you need will affect your total cost. High-efficiency monocrystalline panels will cost more upfront but can also lead to more savings over the lifetime of your system. If space isn't a constraint for your project, you can go with a higher number of more affordable panels.
So is installing solar panels worth it? Whether you hope to lower your electric bills, carbon dioxide emissions or both, solar panels are a solid investment for many Greenwich homeowners.
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Solar Incentives in Greenwich
Switching to solar power has many great benefits. Not only can it help preserve the Earth, but you can also save some money on your installation with various government incentives.When you install a solar panel system on your house, you can take advatage of the federal tax credit, or ITC. This credit currently lets you lower your tax bill by 0 of the cost of your solar panels. Plus, there may often be some local incentives that you can take advantage of to further cut back on the cost of solar of solar panels. In our article on solar incentives, you can see the incentives you qualify for near you.
Environmental Impact of Switching to Solar in Greenwich
There are many reasons to trade traditional energy for solar energy, like saving money on utility bills and helping to lower your carbon footprint.But how much can installing solar panels actually affect the environment? Your energy usage is an important factor to keep in mind. The more power your home uses, the larger your impact when you go solar.Since solar panels don’t release carbon dioxide emissions into the atmosphere when producing electricity, they’re a good substitute for traditional energy sources. In fact, you could lower your carbon dioxide emissions by about 50 pounds each year. The good things about solar power are infinite — just like solar power is! That's why so many people have been happy with using solar energy.
Best Regional Coverage
Momentum Solar
- Great warranty coverage
- Representatives are experts on local policies
- Concierge service ensures steady communication
- Slightly limited service offerings
Best for Leasing
Sunrun
- Expansive service area
- Many financing options
- Some reported issues with customer service
- Some reported issues with door-to-door sales
EcoWatch's Greenwich, NJ Solar Company Rankings FAQs
What is the most reputable solar company in Greenwich?
The best local solar company in Greenwich is SunPower, with a rating of 4.00 stars.
What are a few of the pros and cons of going solar?
A few of the biggest pros are that it decreases your power bills, it’s good for the environment, and it can provide a decent return on your investment (ROI). The most notable cons are that solar panels don’t produce electricity at night, they cost a lot upfront and solar panels can look clunky on your roof.
How long does it take to see a return on your investment after installing solar panels?
The average payback period for solar panel installation is about 18.3 years, but the exact period varies by local electricity costs, incentives and net metering programs.
What is the efficiency of solar panels?
For the most part, solar panels are about 15 to 25% efficient, which means 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.