15 Best Solar Companies in Darien, CT (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Darien based on:
Customer review scores
Service area for Darien, CT
Company policies and services offered
Accreditations and certifications
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Average Darien homeowner saves $1,924/year with solar panels
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Best Solar Companies in Darien
On the hunt for the best solar companies in Darien? Installing a solar panel system is an exciting project that many homeowners find valuable for their wallets, communities and the planet. Installation costs can be high, but the switch will save you money on your energy bills over time. In fact, you can potentially save about $23,000 over 20 years.
If you want to make use of the great amount of perks of solar, we’re here to help you narrow down your options to find the Darien solar installer that’s perfect for you.If you’re ready to start receiving free, no-obligation quotes from the best Darien solar installers, you can click the button below to learn more.
EcoWatch Rankings for Solar Companies in Darien

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

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

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




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

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

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

Lighthouse Solar - NY
Clear Pricing Policy
Free Quotes
Informative Resources
Reliable Customer Support
Limited information available on website
Services Offered
Consultation
Cleaning and Maintenance
Panel Installation
Skilled Repairs
Grid-Tied Solar System
Financing Assistance

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

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

Integrity Solar Solutions
Free Quotes
Reliable Customer Support
Clear Pricing Policy
Informative Resources
Limited information available on website
Services Offered
Consultation
Panel Installation
Skilled Repairs

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

Methodology: How We Ranked the Best Solar Companies in Darien
EcoWatch's solar experts analyzed each solar company in Darien 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 Darien
Below are some the criteria we examined specifically for Connecticut 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 Darien
For most homeowners, whether or not to invest in solar panels boils down to the cost.Some key factors that affect how much it will cost to install a solar panel system on your home and how much money you could save over time are:
- Choice of solar panels: The kind of solar panels you want 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 you don’t need to maximize efficiency, you can opt for a higher number of more affordable panels.
- The amount of sunlight your rooftop gets: Due to Darien’s high amount of average daily sunlight, you should be able to save a decent amount on your energy bills.
- How much power your household needs: If your home uses a lot of energy, you'll see more savings from installing solar panels.
- Incentives: Tax-paying citizens who install a solar energy system this year can save 0 of their installation costs by taking advantage of the federal solar investment tax credit. You can also save about $23,000 on your energy bills over 20 years not including incentives.
Though a solar panel system costs a decent chunk of money upfront, it can save you a considerable amount in the long term. The question of how much, though, depends on several factors, including the size of your solar panel system and incentives.
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Adopting a sustainable source of energy can significantly impact both the environment and your monthly expenses. To see how much, check out the calculator below. You can also view our solar panel cost guide for Darien, CT.
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Solar Incentives in Darien
There are many good reasons why adopting solar power is beneficial. One of them includes some government incentives you can take advantage of.These incentives normally consist of cash rebates, tax benefits and/or performance-based incentives. They can reduce how much you pay for going solar by 0, upwards of 50% in some cases. Take a look at our article on solar incentives to find out what incentives you can benefit from.
Environmental Impact of Switching to Solar in Darien
Many want to do what they can for the planet, which in many cases is the prime motivation to install a solar system.But how much can switching to solar actually help the environment? For those who want to do their part for the planet, going solar is an easy choice, especially since Darien produces a fair amount of carbon dioxide emissions from its energy generation.Even though solar panel manufacturing releases carbon dioxide emissions, the panels make up for it by significantly lowering the amount of CO2 you would have been responsible for if you still used nonrenewable energy. In Darien, you can reduce your carbon footprint by 40 pounds a year with solar panels. Since solar power is plentiful and generates electricity without a carbon footprint, installing solar panels is one easy step you can take to help the planet.
EcoWatch's Darien, CT Solar Company Rankings FAQs
What is the most reputable solar panel installer in Darien?
In Darien, Precision Solar is the top local solar company. Our team of experts rates it 5.00 stars, so it's a great choice if you're planning on installing solar panels on your home.
Are solar panels really good for the environment?
Manufacturing solar panels uses chemicals and produces toxic waste that can be dangerous for the environment, which is the main negative thing about solar panels.
Are solar panels worth it?
Solar panels call for a significant upfront investment that will cost you several thousands of 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 the amount of energy the panels can create under ideal conditions (a sunny day around noon). The average household has to get between 20 and 35 panels to cover how much energy they need.
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.