California’s electric power companies are pivotal in transitioning towards sustainable energy solutions. They span various sectors, from solar and wind energy to energy storage innovations. Companies actively focus on reducing carbon footprints while ensuring reliable service for homes and businesses. The industry is witnessing a paradigm shift, with increased investment in renewable technologies and community-focused initiatives. As climate change continues to shape policy, these firms are essential players in developing clean energy infrastructures, promoting economic growth, and enhancing energy security across regions, setting a foundation for a greener future.

The following companies represent a cross-section of California’s electric power sector, showcasing a range of sizes from small dedicated firms to larger entities with hundreds to thousands of employees. They are primarily headquartered across key cities such as San Francisco, Los Angeles, and Sacramento, and were founded between 1929 and 2014. Their specialties include solar energy, wind power, and innovative storage solutions, reflecting a strong commitment to renewable energy. This assortment illustrates the vibrant employment and investment potential within the state's power industry.

Read on to discover more about California's top electric power companies.

Top 21 Electric Power Companies Companies in California

1. Pattern Energy

• Website: patternenergy.com
• Ownership type: Corporate
• Headquarters: San Francisco, California, United States (USA)
• Employee distribution: United States (USA) 92%, Canada 7%
• Latest funding: December 2024
• Founded year: 2012
• Headcount: 501-1000
• LinkedIn: pattern-energy

Pattern Energy Group LP, founded in 2012 and based in San Francisco, California, is a corporate entity dedicated to renewable energy. The company specializes in the development, construction, ownership, and operation of large-scale wind and solar power facilities throughout North America. With a portfolio that boasts approximately 30 operating facilities and around 6 gigawatts of installed capacity, Pattern Energy is actively contributing to the energy transition. They focus on providing sustainable energy solutions to utility companies and businesses, facilitating the shift from fossil fuels to renewable sources. Their operations also include energy storage and transmission projects, further solidifying their position in the electric power industry. The company emphasizes community engagement and environmental stewardship, aiming to build trust and transparency with the communities they serve. As of now, there is no reported funding, indicating a stable operational model without reliance on external financial backing.

2. Solar Power Partners

• Website: solarpowerpartners.com
• Ownership type: Corporate
• Headquarters: Larkspur, California, United States (USA)
• Employee distribution: Sri Lanka 100%
• Latest funding: November 2011
• Founded year: 2006
• Headcount: 11-50
• LinkedIn: solar-power-partners

Solar Power Partners is a corporate entity located in Larkspur, California, specializing in solar energy solutions. Founded in 2006, the company operates under the umbrella of NRG Energy, a prominent energy provider known for its focus on electricity generation and renewable energy initiatives. Solar Power Partners primarily offers solar power solutions tailored for both residential and commercial clients, aiming to promote sustainability and reduce carbon footprints. While the company has not reported any recent funding, it benefits from the resources and expertise of its parent company, NRG Energy, which has a significant presence in the energy market. Solar Power Partners is committed to advancing renewable energy adoption, contributing to a cleaner energy future.

3. Bear Valley Electric Service, Inc.

• Website: bvesinc.com
• Ownership type: Private
• Headquarters: Big Bear Lake, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1929
• Headcount: 11-50
• LinkedIn: bear-valley-electric-service

Bear Valley Electric Service, Inc. is a private electric utility company based in Big Bear Lake, California. Founded in 1929, the company provides electric services primarily to residential and small business customers in the Big Bear area, including communities like Big Bear City, Moonridge, and Fawnskin. BVES is committed to ensuring reliable power delivery and has implemented various energy efficiency and customer assistance programs to support its local community. The company actively engages in initiatives such as wildfire mitigation and renewable energy projects, including partnerships to enhance solar production and energy storage capabilities. BVES also offers several assistance programs aimed at helping qualified customers manage their electric bills, reflecting its focus on community support and customer service.

4. Diamond Generating Corporation

• Website: dgc-us.com
• Ownership type: Corporate
• Headquarters: Los Angeles, California, United States (USA)
• Employee distribution: United States (USA) 80%, Mexico 20%
• Latest funding: February 2024
• Founded year: 1999
• Headcount: 51-200
• LinkedIn: dgc-us

Diamond Generating Corporation (DGC), founded in 1999 and based in Los Angeles, California, is an energy company that focuses on safe and clean electricity generation. As a subsidiary of Mitsubishi Corporation, DGC leverages extensive global expertise to navigate the evolving energy market. The company offers a variety of solutions, including renewable energy projects and energy management services tailored for utilities and developers. DGC's portfolio includes wind farms, utility-scale solar arrays, and battery energy storage facilities, showcasing its commitment to sustainable energy. Additionally, DGC is involved in energy trading and management, further solidifying its role in the North American power business. With a workforce that spans the United States and Mexico, DGC is positioned to meet the increasing demand for clean energy solutions while contributing to a decarbonized society.

5. Inspire

• Website: inspirecleanenergy.com
• Ownership type: Corporate
• Headquarters: Santa Monica, California, United States (USA)
• Employee distribution: United States (USA) 96%, India 4%
• Latest funding: July 2021
• Founded year: 2014
• Headcount: 51-200
• LinkedIn: helloinspire

Inspire Clean Energy, founded in 2014 and based in Santa Monica, California, is a renewable energy provider dedicated to offering 100% clean energy solutions to residential customers. The company sources its energy from wind, solar, and hydropower generators, aiming to minimize carbon emissions and foster sustainability. Inspire operates by purchasing renewable energy on behalf of its members, ensuring a smooth transition to cleaner energy sources without the need for installations or upfront costs. As a wholly-owned subsidiary of Shell Renewables and Energy Solutions, Inspire is positioned to accelerate its mission of transforming the energy landscape. The company emphasizes community impact, partnering with local power generators and supporting initiatives that provide clean energy solutions to those in need. Inspire's approach not only addresses the immediate energy needs of its customers but also contributes to broader environmental goals.

6. Festival Hydro

• Website: festivalhydro.com
• Ownership type: Private
• Headquarters: Stratford, California, United States (USA)
• Employee distribution: Canada 100%
• Founded year: 2000
• Headcount: 11-50
• LinkedIn: festival-hydro

Festival Hydro Inc. is a private utility company founded in 2000, based in Stratford, Ontario. It provides essential electricity and water services to both residential and commercial customers in Stratford and the Town of St. Marys. The company is committed to enhancing customer experience through various assistance programs and energy conservation initiatives. Festival Hydro actively promotes sustainable practices and offers online account management to facilitate customer engagement. The company also participates in local energy programs aimed at reducing greenhouse gas emissions and improving energy efficiency. With a small team of 28 employees, Festival Hydro focuses on delivering quality service tailored to the needs of its community, while also being involved in broader energy conservation efforts.

7. Baker Electric

• Website: baker-electric.com
• Ownership type: Family Owned
• Headquarters: Escondido, California, United States (USA)
• Employee distribution: United States (USA) 97%, Mexico 3%
• Founded year: 1938
• Headcount: 501-1000
• LinkedIn: baker-electric

Baker Electric, based in Escondido, California, is an electrical contractor with a rich history dating back to 1938. The company specializes in renewable energy solutions, focusing on commercial and utility-scale solar installations, electric vehicle (EV) charging infrastructure, and a wide range of electrical construction services. With a workforce of approximately 814 employees, Baker Electric serves various sectors, including healthcare, education, hospitality, and public works. Their commitment to quality and innovation is evident in their extensive portfolio of projects, which includes significant installations for notable clients. Since becoming 100% employee-owned in 2021, Baker Electric has emphasized a culture of accountability and collaboration, further enhancing their service delivery. The company has been recognized as a top electrical subcontractor in California and nationally, reflecting their expertise and reliability in the industry.

8. Gridscape Solutions

• Website: grid-scape.com
• Ownership type: Private
• Headquarters: Fremont, California, United States (USA)
• Employee distribution: India 60%, United States (USA) 35%, United Kingdom (UK) 5%
• Founded year: 2013
• Headcount: 51-200
• LinkedIn: gridscape-solutions

Gridscape Solutions, founded in 2013 and based in Fremont, California, is a private company that specializes in renewable energy solutions. The firm focuses on microgrid development and electric vehicle (EV) fleet electrification, providing customized energy solutions to various sectors, including education, government, and critical municipal facilities. Their innovative offerings include the EnergyScope DERMS Microgrid System and comprehensive EV charging infrastructure. Gridscape has successfully deployed numerous microgrids across California, showcasing their expertise in solar grid technology and commitment to sustainability. The company has received several grants from the California Energy Commission (CEC) for their projects, further solidifying their role in advancing renewable energy initiatives. With a workforce that spans across the United States, India, and the United Kingdom, Gridscape is positioned to make a significant impact in the renewable energy sector.

9. Champion Electric Inc.

• Website: championelec.com
• Ownership type: Private
• Headquarters: Riverside, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1991
• Headcount: 51-200
• LinkedIn: champion-electric-inc.

Champion Electric Inc., based in Riverside, California, has been a player in the electrical services industry since its founding in 1991. The company specializes in a wide array of electrical solutions tailored for residential, commercial, and industrial clients. Their service offerings include installations, maintenance, and innovative energy solutions such as electric vehicle charging stations and solar energy services. Champion Electric has built a reputation for quality and customer satisfaction, serving a diverse clientele that includes homeowners, businesses, and educational institutions. The company prides itself on its skilled workforce, which is dedicated to delivering dependable and cost-effective electrical solutions. Their involvement in public works and large-scale projects further underscores their capability and commitment to the electrical industry.

10. Mainspring Energy

• Website: mainspringenergy.com
• Ownership type: Private Equity
• Headquarters: Menlo Park, California, United States (USA)
• Employee distribution: United States (USA) 98%, Other 2%
• Latest funding: Series E-K, $258.0M, April 2025
• Founded year: 2010
• Headcount: 201-500
• LinkedIn: etagen-inc.

Mainspring Energy, founded in 2010 and based in Menlo Park, California, is an energy technology company that specializes in clean power generation solutions. The company is known for its innovative product, the Mainspring Linear Generator, which serves commercial and industrial customers, utilities, and various organizations. Mainspring's technology aims to enhance energy resilience and reduce emissions, making it a key player in the shift towards sustainable energy. Their focus on local power solutions and flexible energy technologies supports the transition to renewable fuels, including biogas and hydrogen. Mainspring has received significant funding, with a recent Series E-K round totaling $258 million, reflecting strong investor interest in their approach to clean energy.

11. EPX Group

• Website: epxgrp.com
• Ownership type: Private
• Headquarters: Temecula, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2014
• Headcount: 51-200
• LinkedIn: epx-group

EPX Group, founded in 2014 and based in Temecula, California, is an energy solutions provider that focuses on solar energy, battery storage, generators, and electric vehicle (EV) charging stations. The company serves both residential and commercial customers throughout Southern California, aiming to help clients manage their energy consumption effectively. EPX Group was established by two engineers who sought to offer straightforward and affordable solutions to complex energy challenges. Their offerings include installation and maintenance services for solar panels and generators, as well as mobile energy solutions for temporary power needs. The company emphasizes reliability and sustainability in its operations, ensuring that clients can maintain power even during outages. EPX Group's team consists of engineers, contractors, and customer service specialists dedicated to delivering successful energy projects.

12. Laser Electric, Inc.

• Website: laserelectric.com
• Ownership type: Private
• Headquarters: Escondido, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1987
• Headcount: 51-200
• LinkedIn: laser-electric-inc.

Laser Electric, Inc. is an electrical contractor based in Escondido, California, with a focus on industrial and commercial electrical services. Established in 1987, the company has grown from a small operation to a well-regarded player in the electrical contracting field, employing between 51 and 200 staff members. Laser Electric provides a range of services, including energy conservation solutions, emergency electrical services, and power quality assessments. They cater to various sectors such as education, healthcare, and manufacturing, emphasizing safety and quality in their operations. The company is also involved in alternative energy projects, offering design, installation, and maintenance of solar plants and other renewable energy sources. Their commitment to customer service and safety has earned them a loyal client base in Southern California.

13. Wellhead Electric Company, Inc.

• Website: wellhead.com
• Ownership type: Private
• Headquarters: Sacramento, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1982
• Headcount: 51-200
• LinkedIn: wellhead-electric-company-inc-

Wellhead Electric Company, Inc. is a private energy firm based in Sacramento, California, specializing in power generation and energy storage solutions. Established in 1982, the company has developed a strong portfolio in natural gas, solar energy, and hybrid systems, primarily serving energy providers. Wellhead has successfully designed, built, and operated numerous power generation facilities, totaling over 600MW in capacity. Their innovative Hybrid Electric/Enhanced Gas Turbine (EGT) technology, developed in collaboration with GE, exemplifies their focus on reducing emissions and improving grid efficiency. The company also offers services in permitting, operations, and maintenance, showcasing their comprehensive approach to energy project development. With a dedicated workforce, Wellhead continues to contribute to the energy sector by enhancing the efficiency and sustainability of power generation.

14. Inspire

• Website: helloinspire.com
• Ownership type: Private
• Headquarters: Santa Monica, California, United States (USA)
• Founded year: 2013
• Headcount: 51-200
• LinkedIn: helloinspire

Inspire Clean Energy, founded in 2013 and based in Santa Monica, California, is a private company dedicated to providing clean energy solutions to residential customers. The company offers 100% renewable energy plans sourced from wind, solar, and hydropower, aiming to facilitate a transition to a net-zero carbon future. Inspire empowers its customers to take climate action by reducing their carbon footprint without the need for solar panel installations. They partner with local power generators to source clean energy, which not only supports the grid but also benefits local communities. Inspire has made significant strides in the clean energy sector, helping its members avoid over 8.1 billion pounds of carbon emissions to date. As a wholly-owned subsidiary of Shell Renewables and Energy Solutions, Inspire is positioned to further its mission of transforming energy access and promoting sustainability.

15. 8minute Solar Energy

• Website: 8minute.com
• Ownership type: Private
• Headquarters: Los Angeles, California, United States (USA)
• Founded year: 2009
• Headcount: 51-200
• LinkedIn: 8minute

8minute Solar Energy, now operating under the name Avantus, is a private clean energy company based in Los Angeles, California. Founded in 2009, Avantus specializes in renewable energy solutions, with a particular emphasis on solar power and energy storage. The company has developed a robust portfolio of projects aimed at providing innovative energy products and services tailored to meet the needs of utilities and organizations. Avantus is committed to delivering affordable and reliable clean energy while actively addressing climate change. Their extensive project pipeline is projected to deliver power to millions, showcasing their capacity to execute large-scale solar and energy storage initiatives. The company has successfully developed and constructed over 2 GW of operating solar projects and is recognized for its innovative approach to energy generation, including the integration of smart power plants that optimize performance and reduce costs. Avantus's focus on research and development, along with its strategic partnerships, positions it as a forward-thinking entity in the renewable energy sector.

16. EtaGen, Inc.

• Website: etagen.com
• Ownership type: Private
• Headquarters: Menlo Park, California, United States (USA)
• Founded year: 2010
• Headcount: 51-200
• LinkedIn: etagen-inc.

EtaGen, Inc., based in Menlo Park, California, is a private company founded in 2010. It operates under the brand Mainspring Energy, focusing on clean power generation technologies. The company offers the Mainspring Linear Generator, which provides local power solutions tailored for commercial and industrial clients. Their technology is designed to help customers reduce emissions and manage energy costs while transitioning to renewable fuels. Mainspring Energy serves a variety of industries, including logistics and utilities, and is committed to enhancing clean energy infrastructure. Their innovative approach allows for flexible, scalable power generation that can adapt to the evolving energy landscape, making them a notable player in the electric power sector.

17. Next Phase Electric

• Website: nextphaseelect.com
• Ownership type: Private
• Headquarters: Bakersfield, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2016
• Headcount: 51-200
• LinkedIn: nextphaseelectric

Next Phase Electric, founded in 2016 and based in Bakersfield, California, is an energy solutions provider that specializes in renewable energy and electrical services. The company offers a range of services, including residential solar installations, commercial electrical services, and emergency electrical solutions. Their clientele includes homeowners and businesses across California, all seeking to enhance energy efficiency and reduce costs. Next Phase Electric is dedicated to delivering tailored solutions that meet the unique needs of each customer, emphasizing quality craftsmanship and customer satisfaction. The company also provides financing assistance to help clients navigate the financial aspects of their projects, making solar energy more accessible. With a focus on community impact, Next Phase Electric aims to uplift local communities through sustainable energy solutions, contributing to a greener future.

18. IEC Corporation

• Website: iec-corporation.com
• Ownership type: Private
• Headquarters: Sacramento, California, United States (USA)
• Employee distribution: United States (USA) 71%, India 10%, Vietnam 10%, Other 10%
• Founded year: 2000
• Headcount: 11-50
• LinkedIn: iec-corporation

IEC Corporation, based in Sacramento, California, is an engineering and construction firm that has been active in the electric power industry since its founding in 2000. With a workforce of approximately 113 employees, the company specializes in providing comprehensive services that span from design and engineering to construction and operational support. IEC Corporation focuses on renewable energy solutions, including solar, wind, and hydroelectric power, as well as energy storage systems and power delivery infrastructure. Their client base includes utility companies and government entities, reflecting their role in advancing energy infrastructure and supporting renewable energy initiatives. The firm has undertaken various projects, such as the development of battery energy storage systems and the integration of renewable energy sources into existing power grids, showcasing their expertise and commitment to shaping the future of energy.

19. Electrical Power Source

• Website: electricalpowersourceinc.com
• Ownership type: Private
• Headquarters: Fresno, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2007
• Headcount: 11-50
• LinkedIn: electrical-power-source

Electrical Power Source Inc., founded in 2007 and based in Fresno, California, is a private electrical contracting firm. With a team of 11 to 50 employees, the company specializes in a variety of electrical services, including installations, maintenance, and innovative solutions like solar energy systems and backup power generators. They cater to a wide range of clients, from residential homeowners to commercial enterprises and industrial facilities, ensuring that their electrical needs are met with reliability and efficiency. As a woman-owned small business, Electrical Power Source emphasizes quality and customer satisfaction, which is reflected in their positive client testimonials. Their involvement in solar energy and EV charging station installations highlights their commitment to modern energy solutions, positioning them well within the evolving electric power industry.

20. SunPower Corporation

• Website: us.sunpower.com
• Ownership type: Private Equity
• Headquarters: Richmond, California, United States (USA)
• Employee distribution: United States (USA) 55%, Philippines 35%, Mexico 4%, Other 7%
• Latest funding: Other (Debt), $300.0M, February 2024
• Founded year: 1985
• Headcount: 1001-5000
• LinkedIn: sunpower-corporation

SunPower Corporation, founded in 1985 and based in Richmond, California, specializes in solar energy solutions primarily for residential customers. The company provides a range of products, including high-efficiency solar panels, energy storage systems, and electric vehicle charging solutions. SunPower operates through a network of certified dealers, ensuring personalized service and support for homeowners looking to reduce their energy costs and environmental impact. With a workforce of approximately 3,572 employees, the company has a significant presence in the United States, as well as operations in the Philippines and Mexico. Recently, SunPower secured $300 million in funding, which reflects its ongoing commitment to innovation and expansion in the renewable energy sector. Their focus on quality and customer satisfaction is evident in their industry-leading warranty offerings, which cover solar panels for 25 years and monitoring services for 10 years.

21. Terra-Gen, LLC

• Website: terra-gen.com
• Ownership type: Private Equity
• Headquarters: San Diego, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: March 2024
• Founded year: 2007
• Headcount: 201-500
• LinkedIn: terra-gen-operating-company-llc

Terra-Gen, LLC, founded in 2007 and based in San Diego, California, is a private equity-backed renewable energy company. The firm specializes in the development, financing, and operation of utility-scale renewable energy projects, primarily in wind, solar, and energy storage. Terra-Gen's operational portfolio includes 3.8 GW of renewable energy capacity, with projects spread across the United States, particularly in California and Texas. The company serves a variety of clients, including utilities, cities, and energy providers, helping them transition to sustainable energy solutions. Terra-Gen is also committed to community engagement, contributing to local initiatives and supporting economic growth in the areas where it operates. Their projects not only provide clean energy but also aim to enhance energy security and grid resilience.

Electric Power Companies Insights: Key Companies in California

Company	Headquarter	Size	Founded	Ownership
Pattern Energy	San Francisco, California, United States (USA)	501-1000	2012	Corporate
Solar Power Partners	Larkspur, California, United States (USA)	11-50	2006	Corporate
Bear Valley Electric Service, Inc.	Big Bear Lake, California, United States (USA)	11-50	1929	Private
Diamond Generating Corporation	Los Angeles, California, United States (USA)	51-200	1999	Corporate
Inspire	Santa Monica, California, United States (USA)	51-200	2014	Corporate
Festival Hydro	Stratford, California, United States (USA)	11-50	2000	Private
Baker Electric	Escondido, California, United States (USA)	501-1000	1938	Family Owned
Gridscape Solutions	Fremont, California, United States (USA)	51-200	2013	Private
Champion Electric Inc.	Riverside, California, United States (USA)	51-200	1991	Private
Mainspring Energy	Menlo Park, California, United States (USA)	201-500	2010	Private Equity
EPX Group	Temecula, California, United States (USA)	51-200	2014	Private
Laser Electric, Inc.	Escondido, California, United States (USA)	51-200	1987	Private
Wellhead Electric Company, Inc.	Sacramento, California, United States (USA)	51-200	1982	Private
Inspire	Santa Monica, California, United States (USA)	51-200	2013	Private
8minute Solar Energy	Los Angeles, California, United States (USA)	51-200	2009	Private
EtaGen, Inc.	Menlo Park, California, United States (USA)	51-200	2010	Private
Next Phase Electric	Bakersfield, California, United States (USA)	51-200	2016	Private
IEC Corporation	Sacramento, California, United States (USA)	11-50	2000	Private
Electrical Power Source	Fresno, California, United States (USA)	11-50	2007	Private
SunPower Corporation	Richmond, California, United States (USA)	1001-5000	1985	Private Equity
Terra-Gen, LLC	San Diego, California, United States (USA)	201-500	2007	Private Equity

Want to Find More Electric Power Companies Companies?

If you want to find more companies that provide energy solutions like solar and battery storage 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:

• Detailed Ownership: Who owns the company? Is it a public or private company? What is the ownership structure?
• Contact data: Who are the founders 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!