The industry of solar panel installation companies is booming, particularly in Connecticut. These companies provide comprehensive, renewable energy solutions to both residential and commercial clients. They specialize in the design, installation, and maintenance of solar panel systems, harnessing the power of the sun to generate sustainable and cost-effective energy. As the global shift towards green energy continues to gain momentum, these businesses are positioned at the forefront of an increasingly vital sector. They not only reduce carbon footprint but also offer cost-saving benefits, signifying clear growth potential for this sector in the future.


Top 21 solar panel installation companies in Connecticut

1. GameChange Solar

  • Website: gamechangesolar.com
  • Headquarters: Norwalk, Connecticut, United States
  • Founded: 2012
  • Headcount: 51-200
  • Latest funding type: Series Unknown
  • LinkedIn

GameChange Solar is a company that is changing the world by making solar energy affordable. They offer innovative solar racking systems and solutions to maximize solar energy production.


2. Louth Callan Renewables

Louth Callan Renewables develops, constructs, and maintains clean, renewable-energy projects in the United States, specializing in solar solutions. They offer workmanship warranties and operations and management agreements to ensure optimal functioning of the systems. LCR procures top-level equipment manufacturers and investment-grade panels for their projects.


3. Greenskies Clean Focus

  • Website: greenskies.com
  • Headquarters: North Haven, Connecticut, United States
  • Founded: 2009
  • Headcount: 51-200
  • Latest funding type: Acquired
  • LinkedIn

Greenskies is a vertically-integrated solar energy company offering decarbonization solutions like onsite and offsite solar, battery storage, microgrids, and CCHP. They are dedicated to quality and operational excellence and work with commercial, public sector, and utility energy users throughout the US. With a single delivery team, Greenskies originates, develops, constructs, and operates renewable energy facilities.


4. Specialized Technology Resources, Inc.

  • Website: strsolar.com
  • Headquarters: Enfield, Connecticut, United States
  • Founded: 1944
  • Headcount: 201-500
  • Latest funding type: Ipo
  • LinkedIn

STR Holdings, Inc. is a global leader in solar panel encapsulation, offering environmentally-responsible solutions through research and innovation.


5. CTEC Solar

  • Website: ctecsolar.com
  • Headquarters: Windsor, Connecticut, United States
  • Founded: 2010
  • Headcount: 51-200
  • LinkedIn

CTEC Solar is a company that specializes in the development and installation of utility-scale solar projects in the Northeast. They offer a range of solutions for commercial and residential customers, including solar farms, rooftops, carports, and residential homes.


6. Altus Power, Inc.

  • Website: altuspower.com
  • Headquarters: Stamford, Connecticut, United States
  • Founded: 2009
  • Headcount: 51-200
  • Latest funding type: Post Ipo Debt
  • LinkedIn

Altus Power offers locally-sited solar generation, energy storage, and EV-charging stations to customers across the U.S. Find savings and reliable renewable energy for commercial, industrial, public sector, and Community Solar customers.


7. Green Street Power Partners

  • Website: gspp.com
  • Headquarters: Stamford, Connecticut, United States
  • Founded: 2000
  • Headcount: 11-50
  • LinkedIn

Green Street Power Partners (GSPP) is a company that focuses on acquiring, financing, and developing solar energy systems across the nation. They offer community solar solutions and aim to power tomorrow with clean and sustainable energy.


8. PurePoint Energy

PurePoint Energy is a solar energy company that specializes in providing superior, customized solar energy installations and energy storage solutions for agricultural properties, commercial properties, and non-profits. They offer free consultations and support post-installation, serving clients nationwide in the United States. Whether for apartment buildings, warehouses, schools, or non-profit facilities, PurePoint Energy helps businesses get started with solar panels and offers grants for nonprofit organizations.


9. Savkat INC

  • Website: savkat.com
  • Headquarters: Bristol, Connecticut, United States
  • Founded: 1985
  • Headcount: 11-50
  • LinkedIn

SAVKAT is a solar energy provider that offers top quality products and services. They specialize in home solar systems and provide a comprehensive warranty that covers the entire system. SAVKAT is committed to customer satisfaction and offers financing options for convenience.


10. Elite Energy Consulting

Elite Solar Pros is a company that provides solar panel installations and services. They offer low-cost home solar panels with installation in Connecticut and beyond. Their mission is to promote the use of solar energy and help homeowners save money by converting to solar power.


11. Ion Solar Pros

Ion Solar Pros is a solar energy solutions provider that helps customers produce, store, and generate revenue for years to come. They offer customized solar systems for residential and commercial properties, along with end-to-end support. The company's goal is to provide customers with sustainable power and significant savings.


12. EcoSmart Home Services

  • Website: ecosmartct.com
  • Headquarters: East Berlin, Connecticut, United States
  • Founded: 1985
  • Headcount: 11-50
  • LinkedIn

EcoSmart is a Connecticut-based company that specializes in providing holistic solutions for homeowners to improve energy efficiency, reduce fossil fuel usage, and achieve energy independence. They offer services such as solar panel installation, home batteries, generators, roofing, and home energy audits. With the Inflation Reduction Act, solar ownership combined with incentives can offer a return on investment of 10 years or less for eligible homeowners. EcoSmart is committed to helping customers save money, reduce their environmental impact, and create a more comfortable living environment.


13. Prime Energy Solar

Prime Energy Solar offers renewable energy solutions including solar installations, repairs, and roof installations to create sustainable energy and save on repairs.


14. Dyna Electric, Inc.

Dynaelectric is a company that specializes in electrical construction and services. They offer a wide range of services including HVAC, power connections, lighting retrofit, telephone and data communications, and design-build construction. They also provide back-up generator systems for commercial and industrial clients. With a focus on sustainability, Dynaelectric helps businesses reduce energy costs and promote green energy solutions through the installation of solar panel systems.


15. Ross Solar, a ConEdison Solutions Company

  • Website: rosssolar.com
  • Headquarters: Brookfield, Connecticut, United States
  • Founded: 2007
  • Headcount: 11-50
  • LinkedIn

Con Edison Solutions is a company that specializes in custom solar power systems for homes and businesses in the northeastern region. They have extensive knowledge of the local climate, incentive programs, utility requirements, and building regulations. With an in-house design team and experienced installers, they provide affordable and tailored solar solutions. Their expertise, integrity, and financial stability set them apart in the industry.


16. Renewable Energy CT

Renewable Energy CT specializes in the installation and repair of solar energy systems for residential and commercial properties in Guilford, Connecticut. They offer a range of services including solar panel installation, solar power inverters, battery back up systems, and more.


17. Smart Roofs CT

Smart Roofs Solar is a commercial solar company that offers energy solutions to help businesses reduce their monthly electricity costs and create more predictability with their expenses. They provide guidance on utilizing State and Federal incentives for solar energy, and focus on delivering outstanding long-term returns for businesses.


18. Reliable Oil

Reliable Energy is a company that offers a range of renewable energy and energy efficiency solutions to residential and commercial customers. They provide solar panel installation, energy audits, battery storage, and more.


19. SolarFlexes

SolarFlexes is a company that offers renewable energy solutions to individuals and businesses to help accelerate the transition to a clean economy.


20. Connecticut Solar Electric

  • Website: ctsolarelectric.com
  • Headquarters: Newington, Connecticut, United States
  • Headcount: 11-50

CT Solar Electric is a company that specializes in solar power systems and services for residential and commercial customers.


21. Conneticut Sun & Power LLC

Conneticut Sun & Power LLC is a construction company based out of 529 LITCHFIELD RD, New Milford, Connecticut, United States.


Want to find more solar panel installation companies?


If you want to find more companies that provide various renewable energy solutions which include, but not are limited to solar panel installation and maintenance you can do so with Inven. This list was built with Inven and there are hundreds of companies like these globally.


With Inven you'll also get to know the company's:


  • Ownership: Which of these are private equity backed? Which are family-owned?
  • Contact data: Who are the owners and CEO's? What are their emails and phone numbers?
  • Financials: How do these companies perform financially? What are their revenues and profit margins?

...and a lot more!