California's solar panel installation industry is a pivotal force driving renewable energy adoption. This sector consists of companies that specialize in designing, installing, and maintaining solar systems for homes and businesses. Driven by utility cost savings and environmental concerns, these firms often merge innovation with sustainability, facilitating energy independence for their clients. Moreover, the state's favorable policies and abundant sunlight continue to attract investment, putting California at the forefront of solar technology development. As the push for green energy intensifies, players in this field are increasingly exploring energy storage and new financing solutions, shaping the future of how solar energy is utilized.

The list features 23 notable companies in California's solar installation market, showcasing a variety of sizes and specializations. These firms range from larger entities with several hundred employees, like Freedom Forever and Renova Energy, to smaller outfits such as Xero Solar and Solar Works. Founded between 1984 and 2019, they focus on diverse services, including solar panel installation, maintenance, and battery solutions. With headquarters primarily in Southern California, these companies exemplify the growing commitment to renewable energy and sustainability, ensuring a robust pipeline of innovative solutions that cater to both residential and commercial customers.

Read on to discover key solar panel installation companies in California.

Top 23 Solar Panel Installation Companies in California

1. Freedom Forever

• Website: freedomforever.com
• Ownership type: Private
• Headquarters: Temecula, California, United States (USA)
• Employee distribution: United States (USA) 99%, Other 1%
• Founded year: 2011
• Headcount: 1001-5000
• LinkedIn: freedom-forever

Freedom Forever, based in Temecula, California, is a private solar energy provider that specializes in residential solar panel installation and energy storage solutions. Founded in 2011, the company aims to help homeowners reduce energy costs and achieve greater energy independence through renewable energy. Freedom Forever offers tailored solar systems and flexible financing options, ensuring a smooth transition to solar power for its customers. The company prides itself on its customer service, evidenced by its unique 25-year production guarantee, which assures clients of the energy output from their solar systems. With a workforce of approximately 1,800 employees, Freedom Forever has made significant strides in the solar industry, actively installing systems across multiple states in the U.S. Their innovative approach includes partnerships with independent dealers and the development of proprietary tools like the Volt mobile app, which enhances sales and customer engagement. This focus on technology and customer satisfaction underscores their commitment to improving the solar installation experience.

2. Renova Energy

• Website: renovaenergy.com
• Ownership type: Private
• Headquarters: Palm Desert, California, United States (USA)
• Latest funding: September 2022
• Founded year: 2006
• Headcount: 201-500
• LinkedIn: renova-solar

Renova Energy, based in Palm Desert, California, is a private solar energy provider that has been operational since 2006. The company specializes in solar panel installation, maintenance, and cleaning services, serving both residential and commercial customers primarily in California and Arizona. With a workforce of approximately 300 employees, Renova Energy emphasizes a customer-centric approach, with more than half of its new business stemming from referrals. The company has been recognized for its commitment to quality and service, receiving numerous awards from SunPower, including accolades for customer excellence and design installation. Renova Energy also offers unique services such as drone cleaning solutions, showcasing their innovative approach to solar maintenance. Their focus on education and community involvement further solidifies their position in the solar industry.

3. Semper Solaris

• Website: sempersolaris.com
• Ownership type: Private
• Headquarters: El Cajon, California, United States (USA)
• Employee distribution: United States (USA) 99%
• Founded year: 2012
• Headcount: 501-1000
• LinkedIn: semper-solaris

Semper Solaris, based in El Cajon, California, is a private solar energy provider and roofing contractor that specializes in solar power solutions, roofing services, battery storage, and HVAC systems. Founded in 2012, the company primarily serves homeowners looking to improve energy efficiency and reduce utility costs. With a workforce of approximately 330 employees, Semper Solaris operates predominantly in the United States, showcasing a strong local presence. The company emphasizes quality service and customer satisfaction, which is reflected in their various service bundles that combine solar, roofing, and HVAC solutions. Semper Solaris has garnered several awards over the years, recognizing their achievements in the solar installation sector. Their focus on integrating solar technology with other home improvement services positions them well within the industry, making them a notable player in the solar panel installation market.

4. Green Solar Technologies

• Website: greensolartechnologies.com
• Ownership type: Corporate
• Headquarters: Los Angeles, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: February 2024
• Founded year: 2010
• Headcount: 201-500
• LinkedIn: green-solar-technologies

Green Solar Technologies, based in Los Angeles, California, is a solar energy provider that specializes in affordable solar solutions for residential and commercial clients. Established in 2010, the company has built a reputation for delivering high-quality, American-made solar products. They offer a range of services, including solar panel installation, energy storage systems, and customized financing options, aimed at helping customers reduce their energy costs and carbon footprint. With a focus on customer satisfaction, Green Solar Technologies has developed a strong presence in the solar industry, providing innovative solutions tailored to the unique needs of each client. Their commitment to quality and service has positioned them as a reliable choice for those looking to harness solar energy.

5. Solar Optimum

• Website: solaroptimum.com
• Ownership type: Private
• Headquarters: Glendale, California, United States (USA)
• Employee distribution: United States (USA) 97%, India 3%
• Founded year: 2008
• Headcount: 51-200
• LinkedIn: solar-optimum-inc

Solar Optimum, based in Glendale, California, is a private solar energy provider and roofing contractor that has been operational since 2008. The company specializes in solar panel installations, battery storage solutions, and roofing services, serving both residential and commercial customers across California, Nevada, Arizona, and Florida. With a workforce of approximately 113 employees, Solar Optimum has built a reputation for helping clients reduce energy costs and achieve sustainability goals. The company has received accolades such as the National Installer of the Year from Panasonic for four consecutive years, underscoring its commitment to excellence in service and product offerings. Solar Optimum also emphasizes customer education, providing resources and guides to assist potential solar users in making informed decisions about their energy needs.

6. Palomar Solar & Roofing

• Website: palomarsolar.com
• Ownership type: Private
• Headquarters: Escondido, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2010
• Headcount: 11-50
• LinkedIn: palomar-solar

Palomar Solar & Roofing, based in Escondido, California, specializes in solar panel installations and roofing services. Since its inception in 2010, the company has catered to homeowners and businesses across Southern California, aiming to reduce energy costs while ensuring high-quality roofing solutions. Palomar Solar manages all aspects of the installation process internally, which enhances customer experience and satisfaction. They have installed thousands of solar projects in the San Diego and Southern Riverside areas, showcasing their operational capacity and local expertise. The company is also recognized for its commitment to education, providing resources to help first-time solar buyers make informed decisions. Their designation as the first Platinum Installer for Enphase in San Diego further underscores their proficiency in solar technology. With a dedicated team and a focus on quality, Palomar Solar & Roofing continues to play a significant role in the solar installation industry.

7. Stellar Solar

• Website: stellarsolar.net
• Ownership type: Private
• Headquarters: Oceanside, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1998
• Headcount: 51-200
• LinkedIn: stellar-solar-inc-

Stellar Solar, based in Oceanside, California, has been a prominent player in the solar energy sector since its inception in 1998. The company specializes in solar panel installations, battery storage solutions, and electric vehicle (EV) charging systems for both residential and commercial clients. With a track record of over 15,000 installations, Stellar Solar has built a reputation for quality and reliability in the Southern California market. The company has also expanded its services to Michigan, showcasing its growth and adaptability. Stellar Solar has been recognized for its excellence in service, receiving awards such as the Tesla Performance Excellence award, which highlights its proficiency in solar and battery storage installations. The company prides itself on customer satisfaction, as evidenced by its high ratings and numerous positive testimonials. Stellar Solar continues to focus on helping customers reduce energy costs and achieve energy independence through innovative renewable energy solutions.

8. Infinity Solar

• Website: infinitysolar.net
• Ownership type: Private
• Headquarters: Orange, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1999
• Headcount: 11-50
• LinkedIn: infinity-solar-orange-ca

Infinity Solar, based in Orange, California, is a private solar energy provider that specializes in custom-designed solar panel and home battery systems. Established in 1999, the company has been serving the electrical and solar needs of Southern California homeowners and businesses for over two decades. Infinity Solar offers a range of products, including the Tesla Powerwall and Panasonic solar panels, aimed at reducing electricity costs and promoting sustainable energy solutions. Their services include comprehensive installation processes, financing options, and a commitment to high-quality customer service. Infinity Solar's focus on integrating advanced technologies and providing tailored solutions positions them as a relevant player in the solar industry, particularly in the competitive Southern California market.

9. Clean Solar

• Website: cleansolar.com
• Ownership type: Private
• Headquarters: San Jose, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2007
• Headcount: 11-50
• LinkedIn: clean-solar

Clean Solar, based in San Jose, California, is a private solar energy company founded in 2007. The firm specializes in residential solar panel installation and battery storage solutions, catering primarily to homeowners in California. Clean Solar aims to help clients achieve energy independence while reducing electricity costs through renewable energy. Their service portfolio includes solar monitoring, maintenance, and the installation of electric vehicle charging stations. The company prides itself on its customer-centric approach, as evidenced by numerous positive reviews that commend their professionalism and effective communication. Clean Solar also emphasizes sustainability and has established partnerships with reputable home construction companies to streamline solar installations in new homes. They are recognized for their commitment to quality, offering a 15-year production guarantee on their solar systems, which is higher than industry standards. This focus on reliability and customer satisfaction positions Clean Solar as a noteworthy player in the solar installation industry.

10. SunPower by Quality Home Services

• Website: sunpowerbyqhs.com
• Ownership type: Family Owned
• Headquarters: Fresno, California, United States (USA)
• Founded year: 1985
• Headcount: 51-200
• LinkedIn: sunpowerbyqualityhomeservices

SunPower by Quality Home Services, based in Fresno, California, is a family-owned solar energy provider that has been in operation since 1985. The company focuses on delivering solar power systems and battery storage solutions to homeowners, aiming to help them reduce energy costs and transition to renewable energy sources. Their offerings include residential solar panels, installation services, and support for battery storage systems like the SunVault and Tesla Powerwall. As a recognized SunPower® Master Dealer, they have established a reputation for providing quality solar and battery storage packages. The company operates in Fresno and Bakersfield, California, and has built a solid track record of customer satisfaction, evidenced by numerous positive testimonials. Their commitment to service and quality positions them as a relevant player in the solar installation market.

11. Baker Home Energy

• Website: bakerhomeenergy.com
• Ownership type: Family Owned
• Headquarters: Escondido, California, United States (USA)
• Employee distribution: United States (USA) 96%, Mexico 4%
• Founded year: 2007
• Headcount: 201-500
• LinkedIn: bakerhomeenergy

Baker Home Energy, based in Escondido, California, is a family-owned company that specializes in renewable energy solutions. Established in 2007, the firm has built a reputation for providing comprehensive home services, including solar energy systems, home battery installations, heating and cooling services, and roofing solutions. With a workforce of approximately 162 employees, Baker Home Energy focuses on assisting homeowners in Southern California to reduce their energy costs and enhance home comfort through efficient energy management. The company prides itself on its extensive experience in the energy sector, claiming over 86 years of combined expertise. This background positions them as a knowledgeable player in the solar installation market, where they aim to empower homeowners to manage their energy needs effectively. Baker Home Energy is also recognized as a certified installer of Tesla Powerwall, indicating their commitment to integrating advanced technology into their solar solutions.

12. Solar Technologies

• Website: solartechnologies.com
• Ownership type: Corporate
• Headquarters: San Ramon, California, United States (USA)
• Employee distribution: United States (USA) 74%, India 16%, Kenya 3%, Other 6%
• Latest funding: $5.0M, October 2008
• Founded year: 1998
• Headcount: 51-200
• LinkedIn: solar-technologies

Solar Technologies, based in San Ramon, California, is a solar energy provider that has been operational since 1998. The company focuses on renewable energy solutions tailored for both residential and commercial clients. Their service portfolio includes solar panel installation, energy storage solutions, and electric vehicle (EV) charging systems. With a strong emphasis on reducing energy costs and promoting sustainable energy practices, Solar Technologies has successfully completed over 6,000 projects across California. They are recognized for their high-quality products and services, as well as their industry-leading warranty offerings. The company also engages in energy analysis, financing options, and ongoing maintenance, ensuring comprehensive support for their customers. Their strategic partnerships with established brands like SunPower further solidify their position in the solar market.

13. Sunlux

• Website: sunlux.com
• Ownership type: Private
• Headquarters: Placentia, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2014
• Headcount: 51-200
• LinkedIn: sunlux-energy-inc

Sunlux, based in Placentia, California, is a private solar installation company founded in 2014. With a workforce of approximately 51-200 employees, Sunlux specializes in providing renewable energy solutions tailored for both residential and commercial clients. Their service portfolio includes solar panel installation, battery storage systems, and roofing services, reflecting a comprehensive approach to energy efficiency and sustainability. The company has successfully completed over 7,000 solar installations, translating to significant energy savings for their customers. Sunlux is committed to reducing energy costs and environmental impact, making them a notable participant in the renewable energy sector. Their operations are primarily focused in Southern California and Central Texas, where they have built a reputation for professionalism and customer satisfaction.

14. SunPower by Milholland Electric

• Website: milhollandelectric.com
• Ownership type: Private
• Headquarters: El Cajon, California, United States (USA)
• Founded year: 1990
• Headcount: 51-200
• LinkedIn: milholland-electric-inc

SunPower by Milholland Electric is a solar energy company based in El Cajon, California, with a history dating back to 1990. The firm specializes in the installation of solar panels and energy storage solutions, primarily serving homeowners and businesses throughout California. Their commitment to sustainable energy is evident in their efforts to assist clients in reducing energy costs while transitioning to renewable energy sources. As a certified installer of SunPower solar panels and Tesla Powerwall systems, the company leverages high-quality products to enhance its service offerings. With a workforce of around 21 employees, SunPower by Milholland Electric operates as a private entity and is part of the SIRC Family of Companies, further solidifying its position in the solar industry.

15. Green Home Systems

• Website: greenhomesystems.com
• Ownership type: Private
• Headquarters: Los Angeles, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2010
• Headcount: 51-200
• LinkedIn: greenhomesystemsus

Green Home Systems, based in Los Angeles, California, is a private solar energy provider that specializes in solar panel installations and energy solutions. Established in 2010, the company has been active in the solar industry for over a decade, focusing primarily on residential customers. They offer a wide array of products, including solar panels from reputable manufacturers like Panasonic and Qcells, as well as inverters and battery storage solutions. Green Home Systems prides itself on its customer-centric approach, managing the entire installation process to ensure a seamless experience for homeowners. With a commitment to sustainability and energy efficiency, the company has expanded its reach to serve customers in 21 states across the U.S., reflecting its growing influence in the solar market. Their emphasis on quality and customer satisfaction is underscored by numerous positive testimonials and a strong track record of successful installations.

16. Xero Solar

• Website: xerosolar.com
• Ownership type: Private
• Headquarters: El Segundo, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2010
• Headcount: 51-200
• LinkedIn: xerosolar

Xero Solar is a solar energy company located in El Segundo, California, established in 2010. The firm specializes in designing, installing, and managing solar energy systems tailored for both residential and commercial customers. With a dedicated team of around 37 employees, Xero Solar emphasizes a consultative approach to projects, ensuring that each installation meets the unique needs of its clients. They also offer energy storage solutions, which help customers optimize their energy usage and reduce costs. The company prides itself on using high-quality, efficient solar panels and maintaining a strong commitment to customer satisfaction and sustainability. Xero Solar has installed numerous systems across Southern California, contributing to the region's renewable energy goals.

17. Solar.com

• Website: solar.com
• Ownership type: Corporate
• Headquarters: Los Angeles, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: September 2022
• Founded year: 2019
• Headcount: 51-200
• LinkedIn: thesolardotcom

Solar.com, founded in 2019 and based in Los Angeles, California, is a solar energy provider that specializes in connecting homeowners with qualified solar installers. The company aims to streamline the transition to solar energy by offering personalized solar quotes and expert guidance. Through its platform, Solar.com provides access to a network of over 150 certified installers, ensuring that customers receive competitive bids and quality service. The company emphasizes a customer-centric approach, promising no unwanted sales calls and maintaining transparency throughout the installation process. Solar.com also features a Solar Learning Center, which educates potential customers about solar energy, financing options, and available incentives. This commitment to customer education and support positions Solar.com as a significant player in the solar installation market.

18. Sunline Energy

• Website: sunlineenergy.com
• Ownership type: Family Owned
• Headquarters: San Diego, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2011
• Headcount: 201-500
• LinkedIn: sunlinesandiego

Sunline Energy is a family-owned solar energy and roofing contractor located in San Diego, California. Established in 2011, the company specializes in the installation of solar panels for both residential and commercial properties. With a strong emphasis on customer satisfaction, Sunline Energy has successfully completed over 8,000 projects, showcasing their expertise in the field. They also provide battery storage solutions, allowing customers to maximize their solar energy usage and enhance energy independence. In addition to solar installations, Sunline Energy offers roofing services, making them a comprehensive provider for homeowners and businesses looking to transition to renewable energy. The company prides itself on quality workmanship and has received numerous accolades, including a high volume of 5-star reviews on platforms like Yelp and recognition from Angie’s List for their service excellence. Sunline Energy's commitment to transparency and exceptional service positions them as a notable player in the solar installation industry.

19. The Solar Company

• Website: thesolarco.com
• Ownership type: Private
• Headquarters: Castro Valley, California, United States (USA)
• Employee distribution: United States (USA) 74%, India 13%, Egypt 13%
• Founded year: 2004
• Headcount: 51-200
• LinkedIn: the-solar-company

The Solar Company, known as I Love My Solar, is a private solar energy provider based in Castro Valley, California. Established in 2004, the company specializes in solar panel installations and related services tailored for homeowners and businesses. With a workforce of approximately 92 employees, they have built a reputation for delivering customized solar solutions aimed at reducing electricity costs and promoting renewable energy adoption. The company operates primarily in California and Virginia, offering ongoing support to their clients. The founders, Mark and Christina Danenhower, have a rich background in construction and solar technology, having transitioned from their previous business to focus solely on solar energy. Their commitment to customer satisfaction is evident in their hands-on approach and the extensive experience they bring to the table, having installed thousands of solar systems over the years. I Love My Solar is also a licensed and insured contractor, ensuring compliance with industry standards and regulations.

20. SolarCraft

• Website: solarcraft.com
• Ownership type: Family Owned
• Headquarters: Novato, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1984
• Headcount: 11-50
• LinkedIn: solarcraft

SolarCraft, based in Novato, California, has been a player in the solar energy industry since 1984. This family-owned business specializes in solar electric systems and battery backup solutions, catering to both residential and commercial clients. They operate primarily in Marin, Sonoma, and Napa counties, helping customers reduce electricity costs and achieve energy independence through sustainable energy solutions. With a workforce of 38 employees, SolarCraft prides itself on its employee ownership model, which fosters a strong commitment to service and quality. The company holds licenses as both a General Contractor and an Electrical Contractor, ensuring expertise in all aspects of solar installation. Over the years, SolarCraft has completed more than 9,000 installations, showcasing their extensive experience and reliability in the market. They are recognized for their customer service and have received accolades such as being named a certified Green Business. Their focus on community benefits and environmental sustainability aligns with the growing demand for renewable energy solutions.

21. Current Home

• Website: currenthome.com
• Ownership type: Private
• Headquarters: Hemet, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2018
• Headcount: 201-500
• LinkedIn: currenthome

Current Home, based in Hemet, California, is a private solar energy provider that specializes in solar panel installation, battery backup systems, and roofing services. Founded in 2018, the company primarily serves homeowners in California and Florida, aiming to help them reduce electricity costs and improve energy security through renewable energy solutions. With a workforce of approximately 107 employees, Current Home has positioned itself as a reliable partner for residential solar needs. Their service offerings include custom solar installations tailored to individual energy requirements, as well as innovative battery storage solutions that allow homeowners to maximize their solar energy usage. The company also provides roofing services, which can be integrated with solar installations, enhancing the overall value proposition for customers. Current Home's focus on customer satisfaction is reflected in numerous positive testimonials, indicating a commitment to quality and service in the solar industry.

22. Solar Works

• Website: solarworksca.com
• Ownership type: Private
• Headquarters: Sebastopol, California, United States (USA)
• Founded year: 1986
• Headcount: 11-50
• LinkedIn: solar-works

Solar Works is a full-service solar energy contractor based in Sebastopol, California, specializing in the design and installation of solar panel systems. Established in 1986, the company has built a reputation for quality and customer service, serving homeowners, businesses, and organizations in their transition to renewable energy solutions. Solar Works is recognized as Sonoma County's longest-established solar provider, having completed numerous installations throughout the region. They are committed to environmental sustainability, as evidenced by their certification as a B Corporation and California Benefit Corporation, which reflects their dedication to social and environmental responsibility. The company offers a range of services, including system evaluations, troubleshooting, and maintenance, ensuring that they remain a long-term partner for their clients. Their focus on using high-quality equipment and providing exceptional service has earned them a loyal customer base and numerous accolades, including being voted 'Best of the Bohemian' from 2012 to 2023. Solar Works actively participates in community initiatives, reinforcing their commitment to a healthy environment and a strong local economy.

23. Energy Concepts Enterprises Inc

• Website: energyconceptsfresno.com
• Ownership type: Private
• Headquarters: Fresno, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1992
• Headcount: 11-50
• LinkedIn: jim-pugh-enterprises

Energy Concepts Enterprises Inc, based in Fresno, California, is a solar energy company that has been operational since 1992. With a workforce of 11 to 50 employees, the company specializes in solar panel installation, home battery storage solutions, and financing options tailored for residential, commercial, and agricultural customers. They serve the Central Valley region, focusing on helping clients reduce their energy costs and environmental impact through renewable energy solutions. Energy Concepts prides itself on providing in-house design and installation services, ensuring that each solar system is customized to meet the specific needs of their clients. Their offerings include a lifetime warranty on installations, which reflects their confidence in the quality of their work. The company also emphasizes the importance of solar panel maintenance, providing cleaning services to maximize efficiency. With over three decades of experience, Energy Concepts has positioned itself as a knowledgeable player in the solar industry, dedicated to advancing the adoption of solar energy in their community.

Solar Panel Installation Insights: Key Companies in California

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