15 Best Solar Companies in Killingworth, CT (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Killingworth based on:
Customer review scores
Service area for Killingworth, CT
Company policies and services offered
Accreditations and certifications
Please enter a valid 5-digit zip code!
Average Killingworth homeowner saves $1,906/year with solar panels
Why you can trust EcoWatch
Best Solar Companies in Killingworth
As a homeowner or business owner in Killingworth, you may be considering switching to solar energy and wondering about the best solar companies in your area. Solar could be a good idea since it comes with lots of benefits. With high amounts of average daily sunlight in Killingworth, the solar industry is doing fairly well. An underrated driver of this has been national and statewide incentives that help with residential and commercial solar panel installation.
To help you comb through the large variety of Killingworth solar installers, we’ve narrowed in on a list of the top ones.Continue reading to see our picks for the top solar companies in the city, or get connected to a vetted solar company in your area right away by clicking the 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 Killingworth

Ion Solar Pros
Reliable Customer Support
Clear Pricing Policy
Informative Resources
Free Quotes
Limited information available on website
Services Offered
Consultation
Battery Storage
Panel Installation

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

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



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


GreenLogic Energy
Clear Pricing Policy
Reliable Customer Support
Prompt Service Delivery
Free Quotes
Informative Resources
Limited information available on website
Services Offered
Battery Storage
Consultation
Panel Installation

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

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

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

Green Power Energy
Free Quotes
Clear Pricing Policy
Informative Resources
Reliable Customer Support
Limited information available on website
Services Offered
Skilled Repairs
Permit Assistance
Financing Assistance
Battery Storage
Panel Installation
Consultation

Savkat Solar
Free Quotes
Reliable Customer Support
Clear Pricing Policy
Limited information available on website
Services Offered
Cleaning and Maintenance
Panel Installation
Consultation
Battery Storage
Financing Assistance
Grid-Tied Solar System

Element Energy Systems (E2SYS)
Reliable Customer Support
Informative Resources
Free Quotes
Clear Pricing Policy
Limited information available on website
Services Offered
Panel Installation
Cleaning and Maintenance
Solar Carports
Battery Storage
Consultation

Hytech Home
Free Quotes
Reliable Customer Support
Clear Pricing Policy
Limited information available on website
Services Offered
Consultation
Panel Installation
Skilled Repairs
Cleaning and Maintenance
Methodology: How We Ranked the Best Solar Companies in Killingworth
EcoWatch's solar experts analyzed each solar company in Killingworth 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 Killingworth
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 Killingworth
For a lot of homeowners, whether or not to invest in solar energy comes down to the cost.A few main factors that affect the cost of installing solar panels on your home and how much it could save you over time are:
- Your income and budget: This affects what model of solar panels you can purchase.
- The amount of sunlight your house gets: Due to Killingworth’s high amount of average daily sunlight, you should be able to save a decent amount on your energy bills.
- 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 $23,000 over 20 years with your solar panels, too.
- How much electricity your home consumes: Households that need plenty of energy each month may call for more solar panels and, therefore, be more expensive, but will also save more on their energy bills over time.
Due to solar panels decreasing in cost as well as several solar incentives, they are a worthwhile investment for most homeowners.
Solar Savings Calculator for {{ solarcalc.name }}
If you'd like to know how much you could impact the environment if you switch to solar, you can use the calculator below. You can also view our solar panel cost guide for Killingworth, CT.
{{ solarcalc.time_period|number:0 }} -year savings | {{ solarcalc.total_savings()|currency }} |
Estimated cost | {{ solarcalc.array_cost() | currency }} |
Estimated incentives | {{ solarcalc.incentive_savings() | currency }} |
Payback period | {{ solarcalc.payback_period()|number:1 }} years |
CO2 emissions prevented | {{ solarcalc.CO2_total()|number:0 }} lbs |
Miles driven equivalent | {{ solarcalc.CO2_total()/0.78|number:0 }} mi |
Switching to solar in {{ solarcalc.name }} can save you {{ solarcalc.total_savings() | currency }} over the course of {{ solarcalc.time_period|number:0 }} years.
Solar Incentives in Killingworth
To increase the adoption of solar power, federal, state and local governments – and even some utility companies – offer incentives to help make solar more affordable and accessible.When you install solar panels on your home, you become eligible to claim the federal tax credit, or ITC. This credit currently reduces your tax bill by 0 of the cost of your solar panels. Additionally, there are often some regional incentives that you can benefit from to further save. Our article on solar incentives has more in-depth information on the incentives you can benefit from in Killingworth.
Environmental Impact of Switching to Solar in Killingworth
Going solar can have a positive effect on the environment.You may be wondering – how much do solar panels help the environment anyway? Something that can severely influence your carbon footprint is how long your commute is and how much you drive generally. If you go solar and drive an electric car, you can significantly cut back on your carbon dioxide emissions by charging your car at home.In Killingworth, the average person can reduce their carbon footprint by 40 pounds a year once they go solar. As you can see, trading traditional energy for solar has so many other rewards beyond saving money. One of the most important ones is that you can help save the planet too.
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 Killingworth, CT Solar Company Rankings FAQs
What is the best solar installer in Killingworth?
In Killingworth, Ion Solar Pros is the most reputable local solar company. Our team of experts rates it 4.90 stars, so it's a solid choice if you're planning on installing solar panels on your roof.
What is the negative environmental impact of solar panel manufacturing?
Manufacturing solar panels needs to use chemicals and produces toxic waste that can be harmful for the environment, which is the main downside of solar panels.
Is it worth installing solar panels on my roof?
Solar panels can be a good investment for most homeowners, but admittedly, they might not be worth it for everyone. If your home doesn't get enough sunlight or your electricity bills are already reasonably low, solar panels might not be for you.
What is the best type of solar panel?
There are three main types of solar panels: monocrystalline, polycrystalline and thin-film. As for efficiency and price, monocrystalline has the highest for both, then polycrystalline, and then thin-film. The best choice for you is highly influenced by your roof layout, how much you're willing to spend and how much efficiency you're looking for.
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.