15 Best Solar Companies in Killingly, CT (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Killingly based on:
Customer review scores
Service area for Killingly, CT
Company policies and services offered
Accreditations and certifications
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Average Killingly homeowner saves $1,850/year with solar panels
Why you can trust EcoWatch
Best Solar Companies in Killingly
Looking to go solar but want to know which company would be best for you? Although it can be hard to settle on a solar company, the effort will pay off because going solar has many great perks. While solar is a sizable investment, you’ll be able to make that amount back and then some, all while doing your part for the environment. In fact, you could end up with savings of about $22,000 over 20 years.
In this article, we’ll help you find the best companies in your area.To get free quotes from the top-rated solar companies in Killingly, click the "get quote" button 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 Killingly

SunPower by BlueSel Home Solar
Clear Pricing Policy
Informative Resources
Reliable Customer Support
Limited information available on website
Services Offered
Permit Assistance
Cleaning and Maintenance
Panel Installation

Sunrun Fusion New England
Free Quotes
Clear Pricing Policy
Informative Resources
Limited information available on website
Services Offered
Panel Installation
Cleaning and Maintenance
Battery Storage
Permit Assistance
Grid-Tied Solar System
Consultation
Skilled Repairs

DO IT RIGHT SOLAR
Prompt Service Delivery
Reliable Customer Support
Clear Pricing Policy
Free Quotes
Limited information available on website
Services Offered
Consultation
Panel Installation
Grid-Tied Solar System
System Decommissioning
Battery Storage


Neighborhood Solar
Free Quotes
Clear Pricing Policy
Reliable Customer Support
Informative Resources
Limited information available on website
Services Offered
Cleaning and Maintenance
Consultation
Panel Installation
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
Tesla Powerwall
Battery Storage
Panel Installation
Skilled Repairs
Consultation
Financing Assistance

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


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

Evergreen Solar | RI & MA Solar Panel Company
Informative Resources
Clear Pricing Policy
Reliable Customer Support
Limited information available on website
Services Offered
Panel Installation
Permit Assistance

Earthlight Technologies
Informative Resources
Reliable Customer Support
Free Quotes
Prompt Service Delivery
Limited information available on website
Services Offered
Battery Storage
Skilled Repairs
Consultation
Tesla Powerwall
Panel Installation


Valley Solar
Informative Resources
Reliable Customer Support
Clear Pricing Policy
Prompt Service Delivery
Free Quotes
Limited information available on website
Services Offered
Off-Grid Solar Systems
Solar Carports
Battery Storage
Panel Installation
Tesla Powerwall
Consultation
Cleaning and Maintenance
Financing Assistance


Future Energy Solar
Prompt Service Delivery
Reliable Customer Support
Free Quotes
Informative Resources
Limited information available on website
Services Offered
Permit Assistance
Panel Installation
Financing Assistance
Methodology: How We Ranked the Best Solar Companies in Killingly
EcoWatch's solar experts analyzed each solar company in Killingly 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 Killingly
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 Killingly
Solar panels are powered by a free energy source — the sun — but to take advantage of this you must first pay to install your panels.A few important factors that determine how much it will cost to install solar panels on your home and how much money you could save over time are:
- System size and type: Some models are more pricy than others, so the one you want can raise or lower your initial investment. Plus, the more solar panels you need to get, the more it'll cost.
- 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 will help you save even more. Aside from incentives, you can save an average of $22,000 over the first 20 years with your solar panels, too.
- Your energy bills: This will determine your savings. In Killingly, the average resident can save about $1,800 a year on their electricity bills.
- Electricity consumption: The average home in Killingly doesn’t use much energy, and so may not see as many savings on their power bills.
Even though a solar panel system costs a sizable 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, like the size of your house and incentives.
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Solar Incentives in Killingly
There are lots of reasons why going solar is a great investment. One of them includes some government incentives that can save you money.No matter what state you live in, you can take advantage of the federal Solar Investment Tax Credit (ITC), which lets you claim 0 of how much your solar project cost when you file taxes, lowering the amount of taxes you owe that year. Additionally, there may be some state and city incentives you can benefit from too. For comprehensive information about incentives that apply to you, check out our article on solar incentives.
Environmental Impact of Switching to Solar in Killingly
If you’re considering adding solar panels to your home, one of the primary reasons why may be to lower your greenhouse gas emissions.Something many people might be thinking about is how much can they really help preserve the environment by switching to solar power anyway? Switching to clean energy for electricity instead of burning fossil fuels is a great way to lower your carbon footprint if you're concerned about Killingly's fair level of greenhouse gas emissions.Since solar panels don’t release greenhouse gas emissions into the atmosphere when producing electricity, they’re a good substitute for nonrenewable energy sources. In fact, you could look forward to lowering your carbon dioxide emissions by about 40 pounds each year. If you care about the environment, you’ll likely find that there are many good things about adopting solar power other than just saving money on bills. You can also help protect the environment, which some would argue is priceless.
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 Killingly, CT Solar Company Rankings FAQs
What is the top solar panel installation company in Killingly?
The highest-rated local solar company in Killingly is SunPower by BlueSel Home Solar, with a rating of 3.00 stars.
What is the negative environmental impact of solar panel manufacturing?
Manufacturing solar panels needs to use chemicals and produces toxic waste that can be dangerous for the environment, which is the main negative thing about solar panels.
How long does it take for solar to pay for itself?
Solar panels typically pay for themselves in about 11.4 years, but your solar payback period will vary depending on your utility costs. The more your typical energy bill, the faster your solar panel system will pay for itself.
What is solar panel capacity and how much do I need for my house?
Solar panel capacity is rated based on how much 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.