According to the U.S. Energy Information Association (EIA), Connecticut is one of the fastest-growing small states in the solar energy industry However, with more than 130 solar companies to choose from, beginning your search for a provider may feel overwhelming. From Hartford to New Haven and beyond, we’ve researched the Constitution State’s best solar panel companies.

See our list of top solar companies based on in-depth research.

Select the company that best meets your needs.

Get a free, no-obligation quote for your home.


Compare Solar Companies Across CT

Get a quick idea of what the best solar companies in Connecticut have to offer with the table below.

Star Rating Best For Location Presence BBB Rating Link
SunPower SunPower
Best High-Efficiency System 50 States A+ Get Quote
Sunrun Sunrun
Best Solar Panel Leasing 20 States A+ Get Quote
Palmetto Palmetto
Best Customer Support 24 States A+ Get Quote
Venture Solar Venture Solar
Best Northeast Regional Installer 10 States A+ Get Quote
Momentum Momentum
Best Solar Panel Installation 11 States A+ Get Quote
SunPower
Logo SunPower
Star Rating
Best For Best High-Efficiency System
Location Presence 50 States
BBB Rating A+
Get Quote
Sunrun
Logo Sunrun
Star Rating
Best For Best Solar Panel Leasing
Location Presence 20 States
BBB Rating A+
Get Quote
Palmetto
Logo Palmetto
Star Rating
Best For Best Customer Support
Location Presence 24 States
BBB Rating A+
Get Quote
Venture Solar
Logo Venture Solar
Star Rating
Best For Best Northeast Regional Installer
Location Presence 10 States
BBB Rating A+
Get Quote
Momentum
Logo Momentum
Star Rating
Best For Best Solar Panel Installation
Location Presence 11 States
BBB Rating A+
Get Quote
Star Rating Best For Location Presence BBB Rating Link
SunPower SunPower
Best High-Efficiency System 50 States A+ Get Quote
Sunrun Sunrun
Best Solar Panel Leasing 20 States A+ Get Quote
Palmetto Palmetto
Best Customer Support 24 States A+ Get Quote
Venture Solar Venture Solar
Best Northeast Regional Installer 10 States A+ Get Quote
Momentum Momentum
Best Solar Panel Installation 11 States A+ Get Quote
SunPower
Logo SunPower
Star Rating
Best For Best High-Efficiency System
Location Presence 50 States
BBB Rating A+
Get Quote
Sunrun
Logo Sunrun
Star Rating
Best For Best Solar Panel Leasing
Location Presence 20 States
BBB Rating A+
Get Quote
Palmetto
Logo Palmetto
Star Rating
Best For Best Customer Support
Location Presence 24 States
BBB Rating A+
Get Quote
Venture Solar
Logo Venture Solar
Star Rating
Best For Best Northeast Regional Installer
Location Presence 10 States
BBB Rating A+
Get Quote
Momentum
Logo Momentum
Star Rating
Best For Best Solar Panel Installation
Location Presence 11 States
BBB Rating A+
Get Quote

Connecticut’s Top Solar Energy Companies:

  • SunPower: Best High-Efficiency System
  • Sunrun: Best Solar Panel Leasing
  • Palmetto: Best Customer Support
  • Venture: Best Northeast Regional Installer
  • Momentum: Best Solar Panel Installation

Our Top Solar Company Picks for Connecticut

SunPower

Best High-Efficiency System
4.8

Pros and Cons

Pros Includes a comprehensive 25-year warranty on all system components Creates fully custom, in-house solar energy systems Offers solar batteries and electric vehicle (EV) chargers as add-ons Cons More expensive than other providers, according to customer reviews Limits customization to only associated brands, namely Maxeon Limits service availability by ZIP code

Why We Chose SunPower

SunPower creates some of the best-performing and highest-quality solar panels. The company uses Maxeon’s solar panels, which easily exceed 25% efficiency. SunPower pairs these panels with other in-house solar components to create a system with all parts optimized to work together.

According to our customer review analysis, SunPower costs more than other solar companies. However, investing in high-quality solar panels yields better long-term savings due to improved system performance and longevity.

Warranty and Financing

Warranty
SunPower includes a 25-year warranty covering all system components and workmanship, as well as a 92% power output production guarantee.

Financing Options
✔ Full purchase
✔ Loan
✔ Lease
✔ Power purchase agreement (PPA)

Reputation and Awards

SunPower has provided high-efficiency solar panels, components, and batteries since 1985. The company has garnered an excellent reputation throughout this long history. It received PV Magazine’s 2019 Sustainability Award and Good Housekeeping’s 2022 Home Renovation Award in the Biggest Energy Savers category for its SunVault energy storage system.

SunPower is also accredited by the Better Business Bureau (BBB) and holds an A+ rating from the organization. We noticed that many customers praised SunPower’s high-performing systems and resulting energy savings. However, common complaints noted high prices and difficult communication.

Sunrun

Best Solar Panel Leasing
4.4

Pros and Cons

Pros Offers a unique insurance plan for system damage and theft Includes free maintenance on leased solar panels Provides 24/7 customer support Cons Offers a shorter warranty to full purchase and loan customers Heavily promotes solar leases, which can negatively impact your return on investment Has received negative customer reviews regarding poor customer service

Why We Chose Sunrun

Sunrun is ideal for homeowners looking to install solar panels on a new home. Its BuilderChoice New Homes Program prioritizes code compliance and provides a dedicated team to handle your project’s building and permitting paperwork. Sunrun also provides excellent long-term protection, as you can opt for equipment damage and theft insurance.

Warranty and Financing

Warranty
Sunrun offers a 10-year warranty for system components, roof penetration, and workmanship to full purchase and loan customers. Leasing customers receive a 25-year warranty with insurance protection for theft and damage.

Financing Options
✔ Full purchase
✔ Loan
✔ Lease
✔ Power purchase agreement (PPA)

Reputation and Awards

Sunrun is accredited by the BBB and holds an A+ rating from the site. During our customer review analysis, we noticed that homeowners praised the company’s professionalism and convenient leasing programs. However, be aware that solar leases and PPAs prevent you from owning your system and qualifying for cost-saving solar incentives. Other reviews also mentioned issues with Sunrun’s scheduling and high prices.

DroneDeploy awarded Sunrun with the 2022 Guardian of Safety Award for using drone technology for its site assessments. The company received 14 awards from Comparably in 2021 and 2022, including Best Company Culture, Best CEOs for Diversity, and Best Company for Women.

Palmetto

Best Customer Support
4.4

Pros and Cons

Pros Provides an online savings calculator Offers a unique optional protection plan Includes a 25-year panel output warranty Cons Charges an extra monthly fee for active monitoring Limits financing options to cash purchase or solar loan Limits its other warranty options

Why We Chose Palmetto

We like that Palmetto Solar is committed to customer service, providing support via phone, email, and online chat. The company also has an online service request portal and a library of troubleshooting resources. It offers a wide range of solar services, including protection plans and pest abatement, plus a 25-year system performance warranty.

Warranty and Financing

Warranty
Palmetto offers a 25-year panel warranty, 12-year inverter warranty, 10-year workmanship warranty, and five-year roof penetration warranty.

Financing Options
✔ Full purchase
✔ Loan

Reputation and Awards

Palmetto Solar holds accreditation from the BBB and an A+ rating on the site. We noted during our customer review analysis that many homeowners praised Palmetto’s dedicated installation managers and its team’s overall professionalism.

The company received Solar Power World’s Most Forward-Thinking Contractor award in 2022. Inc. Magazine recognized the company with a Power Partner Award the same year.

Venture Solar

Best Northeast Regional Installer
4.2

Pros and Cons

Pros Creates a seamless solar panel system with Venture Roof Jacks Adds a critter guard for extra pest protection Provides a comprehensive 25-year warranty Cons Doesn’t include a workmanship warranty Doesn’t offer online pricing

Why We Chose Venture

Venture Solar holds knowledge about the requirements for an efficient Connecticut solar panel system. The company installs symmetrical solar systems with no visible wiring or mounting devices, which makes it an ideal option for homeowners who care about their home’s appearance.

Warranty and Financing

Warranty
Venture Solar offers its customers a 25-year bumper-to-bumper warranty that includes coverage for product, workmanship, and power output.

Financing Options
✔ Full purchase
✔ Loan
✔ Lease
✔ Power purchase agreement (PPA)

Reputation and Awards

Venture Solar has a great overall reputation. It holds an A+ rating on its BBB page, though it does not have an accreditation. Some companies choose not to receive BBB accreditation because it costs them an extra fee. Customers mention Venture’s personable and helpful customer support staff, as well as the comprehensive warranty coverage.

Momentum

Best Solar Panel Installation
4.4

Pros and Cons

Pros Provides support for applying for incentives and rebates Offers a large selection of solar panel brands for customization Includes its own smartphone app for active system monitoring Cons Doesn’t include a system output guarantee Doesn’t offer electric vehicle (EV) charger installation Doesn’t offer its solar battery installation service in Connecticut

Why We Chose Momentum

Momentum Solar provides ample customer support during the solar installation process. The company guides homeowners through every step of the process. Its mobile app and online blog keep customers informed, making the company a solid choice for those who want an active role in their solar system installation.

Warranty and Financing

Warranty
Momentum Solar provides further peace of mind through its warranty options. The company offers a ​​25-year system warranty. This includes both a 25-year equipment warranty and a 25-year workmanship warranty.

Financing Options
✔ Full purchase
✔ Loan
✔ Lease
✔ Power purchase agreement (PPA)

Reputation and Awards

Momentum Solar is accredited by the Better Business Bureau (BBB) and holds an A+ rating from the company. Many reviewers praise Momentum for its solar panel quality and warranty options. More critical reviews mention scheduling difficulties and the company’s tendency to engage in spam calls.


Solar Incentives in Connecticut

Connecticut property owners who purchase a solar system may be eligible for various solar incentives, rebates, and tax credits. Those who purchase their solar system outright or by taking out a solar loan are eligible for the federal solar tax credit. This provides a tax credit equal to 30% of your system’s total cost. This credit is applied to your federal tax liability to reduce or eliminate your owed balance. 

Here are some additional incentives available in the Constitution State. 

  • Energy Efficiency Loan Program: Connecticut residents may be eligible for a low-interest loan of up to $40,000 to invest in a renewable energy system. Loan payments can be added to your monthly electric bill to keep things in one place.
  • Net-meteringThe state of Connecticut offers a net-metering program. These programs allow homeowners with a residential solar system to sell excess energy back to the grid for credits. This is usually at the retail electric rate. If credit remains at the end of the year, the system’s owner gets paid out at the wholesale rate.
  • Property Tax Exemption: Connecticut offers a statewide property tax exemption on residential solar installations. Even though your property’s value may increase from a solar installation, your annual property tax won’t. Connecticut also allows municipalities to offer additional property tax exemptions at their discretion.

What To Look For in a Solar Company

We’ve listed the most significant factors to look for when signing up with a solar company.

Solar Services

Look for solar companies that offer other services besides solar panel installation. For example, many companies also offer solar battery installation or provide active system monitoring for ongoing support. A company that offers these additional services is committed to ensuring you get the most from your solar system.

Warranties

We recommend looking for companies that offer a 25-year equipment/manufacturer warranty. Solar panels last an average of 25 years, so this warranty ensures they’re protected throughout their lifetime.

We also suggest you focus on companies with power performance guarantees that promise a certain power output level for a particular time. A power performance warranty is a marker of a high-quality solar company. A 10-year workmanship or labor warranty is fairly standard, so any company that offers converge beyond that is a reliable choice.

Payment Options

We recommend purchasing solar panels in cash or taking out a solar loan. These solar financing options are the most cost effective and provide the best return on investment (ROI). These payment methods make you the system owner and qualify you for federal and state solar incentives.

Solar leases and power purchase agreements (PPAs) offer fewer financial advantages because the solar company remains the system owner, so you can’t use any solar incentives. We only recommend these payment options if you want to generate renewable energy and aren’t focused on the long-term financial benefits of ownership.

Customer Support

We recommend you look for companies with multiple forms of customer support, such as phone, email, and an online chat or service form. If you notice the company offers educational materials online, such as an online blog or videos, this is a sign that it likely cares about keeping you knowledgeable and informed.


How To Get a Solar Quote in Connecticut

Below are the common steps for getting a solar quote in Connecticut.

  1. Contact the solar company: Contact the solar company online or by phone. You’ll need to provide your address for confirmation. Then, you’ll set up a time for a consultation either in-person or virtually, and the company can begin the design process.
  2. Assess your energy needs: During the virtual or in-person consultation, you’ll provide your monthly energy bills to help determine your needed system size and power. We recommend having at least three months of statements handy to account for seasonal fluctuations.
  3. Review your home design and roof space: A company representative will assess your roof space and condition and recommend any required repairs or updates. A virtual consultation may use satellite imaging to assess your home design, but the results can be less accurate.
  4. Build your project: The solar company will provide a final, itemized quote with a detailed inventory of all required equipment. Add solar batteries or electric vehicle chargers to your system. Review your quote for pricing and warranty information, and discuss available financing options and local solar incentives.

Our Conclusion

Connecticut is an excellent state for solar power thanks to its government’s push to increase renewable energy. In 2022, the state committed to zero-carbon emissions from its electricity production by 2040. It also offers favorable solar incentives to make the transition more affordable.

We recommend Momentum Solar as one of the top solar contractors in Connecticut. The company makes switching to solar as easy as possible. It offers a range of financing options to fit your budget and is committed to helping you before, during, and after your solar installation. 

We recommend comparing at least three providers to find the best deals for your home.


FAQ About Solar Companies in Connecticut


Our Methodology

The This Old House Reviews Team is committed to providing comprehensive and unbiased reviews to our readers. After over a thousand hours of research on solar companies, interviews with experts, and common customer needs, we’ve created a detailed rating system for solar providers based on six factors:

  • Solar equipment, installation, and services (25%)
  • Warranty and performance guarantees (25%)
  • Brand reputation and certifications (15%)
  • Financing options (15%)
  • Experience (10%)
  • Availability (10%)

Total scores are divided by 20 for a final 5-point rating scale.

To share feedback or ask a question about this article, send a note to our Reviews team at reviews@thisoldhousereviews.com.