Green Power Energy has built a reputation as one of the most reliable solar installation companies in the Northeast. Founded over 15 years ago and headquartered in Durham, Connecticut, the company has completed more than 1,000 residential and commercial solar installations across Connecticut, New Jersey, and Pennsylvania.
What separates Green Power Energy from many competitors is their focus on doing one thing well. Unlike companies that bolt solar onto an existing roofing or electrical business, Green Power Energy was built from the ground up as a solar-first company. Their entire team, from sales consultants to project managers to the installation crews, is trained specifically for photovoltaic system design and installation. That focus shows in their 4.8-star Google rating and their A+ rating with the Better Business Bureau.
Green Power Energy earned the top spot in Connecticut for their combination of deep experience, consistently strong customer reviews, clean BBB record, and genuine dedication to solar as their core business. In a state where many "solar companies" are actually general contractors who added panels to their service list, Green Power Energy stands out as a purpose-built solar installer with the track record to back it up.
“Our experience was great. Initial contact was congenial and responsive, all of our initial questions and concerns were addressed. Evaluation and workmanship expedited, and installation was seamless....”
James M.
“Green Power Energy is awesome. They gave me a competitive price for my project, and were super helpful throughout the process. They were responsive, they answered all my questions and were really...”
Jeffrey H.
“Great experience. All involved were professional and kind. Information and guidance appreciated. I went with the 25 year lease and have no regrets. No out of pocket cash was needed. I originally was...”
Ken L.
“I had an outstanding experience with Green Power Energy! They installed my solar panels, and the system is performing even better than the original estimates. Sonny from the sales team was extremely...”
Brian C.
“Green Power Energy has been very good to work with through every stage of our solar project, from the initial planning and consultation through permitting, installation, inspections, and project...”
Doreen P.
“Our experience with Green Power Energy was excellent from start (almost) to finish. The team was great at communicating the steps involved but we did feel the need to reach out once or twice for...”
Celia R.
“We couldn’t be happier after our great experience with Green Power Energy. From the beginning, they were positive without being pushy, answered every question we had and supported us every step of...”
Bob B.
“I contacted Green Power Energy last year to check out solar companies. I compared 6 companies, large and small. Steve, my GPE contact was very helpful, patient and provided me accurate information...”
James M.
“Green Power Energy is awesome. They gave me a competitive price for my project, and were super helpful throughout the process. They were responsive, they answered all my questions and were really...”
Jeffrey H.
“Great experience. All involved were professional and kind. Information and guidance appreciated. I went with the 25 year lease and have no regrets. No out of pocket cash was needed. I originally was...”
Ken L.
“I had an outstanding experience with Green Power Energy! They installed my solar panels, and the system is performing even better than the original estimates. Sonny from the sales team was extremely...”
Brian C.
“Green Power Energy has been very good to work with through every stage of our solar project, from the initial planning and consultation through permitting, installation, inspections, and project...”
Doreen P.
“Our experience with Green Power Energy was excellent from start (almost) to finish. The team was great at communicating the steps involved but we did feel the need to reach out once or twice for...”
Celia R.
“We couldn’t be happier after our great experience with Green Power Energy. From the beginning, they were positive without being pushy, answered every question we had and supported us every step of...”
Bob B.
“I contacted Green Power Energy last year to check out solar companies. I compared 6 companies, large and small. Steve, my GPE contact was very helpful, patient and provided me accurate information...”
Mel L.
“Our experience was great. Initial contact was congenial and responsive, all of our initial questions and concerns were addressed. Evaluation and workmanship expedited, and installation was seamless....”
Sunrun Inc. is the largest residential solar company in the United States, and the Rocky Hill office at 712 Brook Street serves as the company's Connecticut hub for sales, installation crews, and service operations. Publicly traded on Nasdaq under the ticker RUN and headquartered in San Francisco, Sunrun has been a BBB-accredited business since 2017 and reports more than one million customers nationwide. The company built its scale on a subscription model anchored by solar leases and power purchase agreements, which let homeowners install panels with little to no money down in exchange for predictable monthly payments and a Sunrun-owned system on the roof. That financing engine, combined with the 2020 acquisition of Vivint Solar, is what positions the company as a market leader in Connecticut and twenty other states.
On the equipment side, Sunrun's Connecticut installations commonly pair tier-one panels with Tesla Powerwall 3 battery storage and a Sunrun-branded mobile monitoring platform, all backed by what the company markets as its industry-leading equipment guarantee and the Sunrun Guarantee on workmanship and service. The Rocky Hill team handles permitting and utility interconnection with Eversource and United Illuminating, and the company's purchasing power on hardware can translate into pricing that smaller installers have a harder time matching.
Our research team has to be candid about the other side of Sunrun's Connecticut footprint. In July 2024, Connecticut Attorney General William Tong filed a lawsuit against Sunrun and two of its marketing affiliates, alleging deceptive sales practices that included forged signatures and, in at least one case, what investigators described as a forged homeowner voice recording. The state had logged seventeen complaints at the time of filing. Online review platforms surface recurring themes around long permitting timelines, communication gaps after the sale, and difficulty exiting contracts. Prospective Connecticut customers should read their agreement closely, confirm the signing party in writing, and ask pointed questions about who owns the system at year twenty and what happens at lease end.
With a composite score of 73.55 out of 100, Sunrun Solar holds the second-ranked position in Connecticut for 2026.
“Gabriel Ahmed and staff at SunRun were extremely professional, knowledgeable and hands on. I was extremely hesitant to get Solar, however due to their expertise, all of my questions and concerns...”
Manny A.
“Working with Colby McMahon was a great experience. He helped me understand the best setup for my home, answered every question patiently, and kept me updated at each step. The process was organized,...”
Barry C.
“I couldn’t be happier with my new solar system! The entire installation process was smooth, professional, and clearly done with high-quality workmanship. The Sunrun crew was punctual, respectful of...”
Mohamed F.
“I am beyond thrilled with my experience with Sunrun! From my very first conversation with Moazzam Seifullah, I knew I had found the right company. His confident, honest, and knowledgeable answers...”
Jose B.
“I had Sunrun install solar panels at my Southington home. Their service was outstanding. The installer crew was top notch. They did an excellent job. Forty panels were installed in one day. I...”
mohammad a.
“My experience with Sunrun Solar was outstanding. From the initial consultation to the final installation, everything was seamless. Jackson was incredibly knowledgeable and helpful, guiding me through...”
Rookie W.
“We worked with Jackson to set up our install and couldn’t be happier. Jackson came out to the house (even in lousy weather) and answered every question that we had.
We had met with several companies...”
Theresa L.
“My experience with Sunrun has been very positive. Colby McMahon was my sales person and I found him to be very personable and well informed about the product he was selling. He carried through on...”
Manny A.
“Working with Colby McMahon was a great experience. He helped me understand the best setup for my home, answered every question patiently, and kept me updated at each step. The process was organized,...”
Barry C.
“I couldn’t be happier with my new solar system! The entire installation process was smooth, professional, and clearly done with high-quality workmanship. The Sunrun crew was punctual, respectful of...”
Mohamed F.
“I am beyond thrilled with my experience with Sunrun! From my very first conversation with Moazzam Seifullah, I knew I had found the right company. His confident, honest, and knowledgeable answers...”
Jose B.
“I had Sunrun install solar panels at my Southington home. Their service was outstanding. The installer crew was top notch. They did an excellent job. Forty panels were installed in one day. I...”
mohammad a.
“My experience with Sunrun Solar was outstanding. From the initial consultation to the final installation, everything was seamless. Jackson was incredibly knowledgeable and helpful, guiding me through...”
Rookie W.
“We worked with Jackson to set up our install and couldn’t be happier. Jackson came out to the house (even in lousy weather) and answered every question that we had.
We had met with several companies...”
Theresa L.
“My experience with Sunrun has been very positive. Colby McMahon was my sales person and I found him to be very personable and well informed about the product he was selling. He carried through on...”
Cynthia W.
“Gabriel Ahmed and staff at SunRun were extremely professional, knowledgeable and hands on. I was extremely hesitant to get Solar, however due to their expertise, all of my questions and concerns...”
Solarship Corp is a Connecticut-based residential solar company founded in January 2022 by Joshua Kekac, who launched the business after more than eight years in the solar industry and an earlier stint as the owner of a technology company that he sold in 2014. The team operates out of 2080 Silas Deane Highway in the Rocky Hill and Wethersfield corridor and has become BBB-accredited as of August 2024, where it carries an A+ rating. Kekac runs a tight bench of nine, including head of operations Terrance Crocker, project managers Nicole Underhill and Kevin Murrihy, an in-house realtor, and two dedicated solar consultants, which is a fairly unusual structure for a small Connecticut installer.
What caught our research team's attention is the verified customer feedback. Solarship holds a perfect 5.0-star Google rating across roughly 192 reviews, a profile that is statistically difficult to maintain at that review volume without consistent execution. Reviewers describe a clear options walkthrough, transparent paperwork, and a sales process that does not lean on high-pressure tactics. The company markets itself as a one-stop provider that handles solar design and installation alongside roof replacement and tree services so that homeowners with shading or aging roofs do not have to coordinate with multiple contractors before a system goes up. Real estate referrals through staff with solar certifications round out the offering for clients who are buying or selling a solar home.
On the technical side, Solarship installs Tier 1 solar equipment paired with Tesla Powerwall battery storage and offers a 25-year warranty on its installations. The company markets three financing paths, including cash purchases, loans with no money down, and power purchase agreements for homeowners who prefer a third-party-owned model. The BBB profile lists a service footprint that reaches beyond Connecticut into Rhode Island, Massachusetts, and Florida, but the operational core remains the Hartford metro. Joshua Kekac has also engaged on state solar policy, submitting testimony to the Connecticut General Assembly in the 2025 session, which speaks to a level of public engagement uncommon among installers at this stage.
With a composite score of 71.0 out of 100, Solarship Corp holds the third-ranked position in Connecticut for 2026.
Sales tax exemption on solar equipment|Property tax exemption for solar value|Residential Solar Investment Program (RSIP)|Net metering at retail rate|Green Bank financing programs
If you are installing distributed generation (e.g., solar panels) that is <2 MW, or already have a generator, you may be eligible for net metering, a method of ...
ISSUE This report describes Connecticut's laws on traditional net metering (CGS § 16-243h) and virtual net metering (CGS § 16-244u, as amended by PAs 16-46, ...
Net metering is a billing system that enables the homeowner with solar panels to have credits when their systems generate more electricity than they consume. In ...
Connecticut replaced its legacy net-metering scheme with the statewide Residential Renewable Energy Solutions Program (RRES), which launched in January 2022.
If you are installing distributed generation (e.g., solar panels) that is <2 MW, or already have a generator, you may be eligible for net metering, a method of ...
ISSUE This report describes Connecticut's laws on traditional net metering (CGS § 16-243h) and virtual net metering (CGS § 16-244u, as amended by PAs 16-46, ...
Net metering is a billing system that enables the homeowner with solar panels to have credits when their systems generate more electricity than they consume. In ...
Connecticut replaced its legacy net-metering scheme with the statewide Residential Renewable Energy Solutions Program (RRES), which launched in January 2022.
This guide covers everything you need to know about going solar in Connecticut, including financial incentives, installation costs, and your home's solar ...
This guide covers everything you need to know about going solar in Connecticut, including financial incentives, installation costs, and your home's solar ...
Stay informed about the latest Connecticut solar news, trends, and tips with our expert blog, featuring insights for CT homeowners.
*Companies displaying 15 or more years in business are typically established electrical, roofing, or general contracting firms that expanded into solar installation in more recent years. The years shown may reflect the age of the parent organization or a strategic partner, not necessarily the solar division itself. This distinction is worth considering when comparing to dedicated solar installers, as purpose-built solar companies may offer more specialized expertise despite a shorter operating history.
