The energy industry in California is redefining itself, with a growing emphasis on renewable and sustainable energy sources. Power companies in this landscape offer a variety of services, ranging from traditional electricity solutions to innovative solar energy systems, thus contributing towards California's goal of powering its cities with 100% renewable energy. The state boasts of a robust line-up of companies that are revolutionizing power systems using technology and innovation, supplying to residential and commercial needs, and aiding in the development of a renewable-future.


Top 21 electric power companies in California

1. Pacific Gas and Electric Company

  • Website: pge.com
  • Headquarters: San Francisco, California, United States
  • Founded: 1905
  • Headcount: 10001+
  • LinkedIn

PG&E is a company that is focused on transforming and innovating California's power system. They use drones to inspect transmission lines and install HD cameras to enhance safety in high fire-threat areas. They also specialize in supply chain management and battery energy storage. Join PG&E to be part of a culture that values innovation, learning, collaboration, and growth, and contribute to the future of energy.


2. SolarCity

  • Website: solarcity.com
  • Headquarters: San Mateo, California, United States
  • Founded: 2006
  • Headcount: 10001+
  • LinkedIn

SolarCity offers solar energy solutions to residential and commercial customers, providing clean and sustainable power. Their services include installation, financing, and maintenance of solar panels.


3. Sungevity

  • Website: sungevity.com
  • Headquarters: Oakland, California, United States
  • Founded: 2007
  • Headcount: 501-1000
  • Latest funding type: Post Ipo Debt
  • LinkedIn

Sungevity is a leading residential solar power company in California. They offer customized solar energy systems with battery storage options, providing savings and financing solutions. Their solar systems are designed to adapt to customers' changing needs and come with a guarantee of performance for 25 years. Sungevity also offers a solar lease program where they own, install, and maintain the solar system. With an easy-to-use monitoring app, customers can track their solar energy system in real-time.


4. Clearway Energy Group

  • Website: clearwayenergygroup.com
  • Headquarters: San Francisco, California, United States
  • Founded: 2018
  • Headcount: 501-1000
  • Latest funding type: Secondary Market
  • LinkedIn

Clearway Energy Group is a leading provider of clean power generated by solar and wind across the US. They own and operate utility-scale wind and solar assets, community solar projects, and distributed solar projects. Their vision is to create a world powered by clean energy, and they work with customers, partners, and affiliates to accelerate the transition to a clean energy future.


5. EPC Power Corp

  • Website: epcpower.com
  • Headquarters: Poway, California, United States
  • Founded: 2010
  • Headcount: 51-200
  • LinkedIn

EPC Power Products is a company that specializes in providing robust power conversion systems for utility scale, commercial, and industrial applications in any environment. Their product lines, such as the CAB1000 and Power Drawer, are fully scalable and have been successfully deployed at 100+ MW sites. With a compact and flexible design, their power solutions are proudly made in the USA and have a proven track record worldwide.


6. SunPro Solar

SunPro Solar is a company that specializes in residential and commercial solar solutions. With a focus on providing durable and weather-resistant solar panels, they help homeowners and businesses save on electricity costs and shield themselves against future rate increases. They offer services such as solar panel installation, cleaning, and battery storage.


7. FAFCO, Inc.

  • Website: fafco.com
  • Headquarters: Chico, California, United States
  • Founded: 1969
  • Headcount: 11-50
  • LinkedIn

FAFCO is a leading provider of renewable and sustainable solar power solutions. Their patent-pending CoolPV technology allows customers to improve PV electrical output while generating warm water for heating pools. With rooftop solar panels, customers can cut utility bills and increase the value of their homes or businesses. FAFCO also offers commercial solar thermal applications and is known for delivering the best solar pool heating solutions in the world.


8. Concentric Power Inc.

Concentric Power delivers sustainable and cost-effective microgrid solutions for commercial, industrial, and agricultural customers aiming to enhance their energy resilience and reduce their carbon footprint.


9. West Coast Electric & Power, Inc.

  • Website: wcepinc.com
  • Headquarters: Anaheim, California, United States
  • Founded: 2017
  • Headcount: 51-200
  • LinkedIn

WCEP, Inc. is a utility contractor specializing in power distribution projects. They offer a range of services including system surveys, pole inspections, design and planning, permitting, and traffic control plans. With offices in Orange County and San Diego, they partner with utilities and primary contractors to deliver high-quality, efficient projects. As a certified CPUC Supplier Clearinghouse minority-owned business, they pride themselves on their experienced team of professionals and their commitment to safety and reliability.


10. IEC Corporation

IEC Corporation is a multi-discipline engineering, design, and construction firm dedicated to shaping the future of energy in the electric power industry. They provide full service and turnkey support for power projects, including design, engineering, construction, testing, and operations.


11. Pilot Power Group, LLC

  • Website: pilotpowergroup.com
  • Headquarters: San Diego, California, United States
  • Founded: 2001
  • Headcount: 11-50
  • Latest funding type: Acquired
  • LinkedIn

Pilot Power Group is a leading Energy Service Provider offering custom energy solutions, portfolio management, and energy procurement strategies for commercial, industrial, and community clients participating in the deregulated energy environment.


12. Sequoia Engineering and Design Associates

Sequoia Engineering & Design Associates is a multi-discipline engineering and design firm that specializes in electrical and mechanical engineering, instrumentation and controls, and successful completion of critical projects for industrial, oil and gas, utility, independent power producers, renewable energy, and institutional sector clients. They offer full-service engineering and design services, including planning and scoping studies, detail design, construction and commissioning support, and power and industrial systems controls. Their mission is to develop long-term partnerships with their clients, build upon the dynamic foundations of the worldwide energy industry, and contribute to an increasingly prosperous and sustainable society.


13. San Diego Gas & Electric

  • Website: sdge.com
  • Headquarters: San Diego, California, United States
  • Founded: 1881
  • Headcount: 5001-10000
  • Latest funding type: Grant
  • LinkedIn

SDGE is a company that provides electricity and natural gas services to customers in San Diego. They offer payment and bill assistance, energy-saving programs, and customer service for both residential and commercial customers.


14. California ISO

  • Website: caiso.com
  • Headquarters: Folsom, California, United States
  • Founded: 1998
  • Headcount: 501-1000
  • LinkedIn

CAISO.com is a company that provides a range of services related to managing transmission line ratings and interconnection process enhancements. They offer real-time settlement reviews, regional solutions, and subscriber participating transmission owner models. The company focuses on market settlement and policy initiatives, network and resource modeling, and capacity procurement mechanism enhancements.


15. V3 Electric, Inc

  • Website: v3electric.com
  • Headquarters: El Dorado Hills, California, United States
  • Founded: 2014
  • Headcount: 201-500
  • LinkedIn

V3 Electric is a California-based residential solar energy provider that offers integrated smart energy solutions. They help customers switch to V3 as their energy provider, providing predictable rates, reliable energy supply, and customized systems. Their services benefit homeowners by reducing energy bills and offering rewards. V3 Electric is revolutionizing the energy industry by disrupting traditional providers and introducing innovation.


16. Citadel Roofing & Solar

  • Website: citadelrs.com
  • Headquarters: Vacaville, California, United States
  • Founded: 2015
  • Headcount: 201-500
  • LinkedIn

Citadel Roofing & Solar offers homeowners in California the opportunity to save energy and protect their homes with solar panels, energy storage, and roofing solutions.


17. Ncpa

  • Website: ncpa.com
  • Headquarters: Roseville, California, United States
  • Founded: 1968
  • Headcount: 51-200
  • LinkedIn

Northern California Power Agency (NCPA) is a municipal utility that delivers wholesale power and maintains the local electric distribution system. They supply electricity, water, and wastewater treatment to residents and businesses in Mendocino County. NCPA collaborates with other cities and districts to create economic vitality through their operations.


18. Green Day Power

Green Day Power is a company that provides zero down solar solutions for homeowners in California. They offer various options including power purchase agreements, ownership, ground mounts, and high-efficiency panels. Their goal is to save homeowners money and improve their lives with solar energy.


19. Westhaven Power

Westhaven Power is a solar company that provides reliable and affordable solar power solutions. They aim to help customers make a positive impact on their financial future by offering trustworthy solar services. With a 3-step game plan that has worked for over 7,000 families, Westhaven Power offers instant quotes, efficient system installation, and upgraded power experiences.


20. Swell Energy

  • Website: swellenergy.com
  • Headquarters: Santa Monica, California, United States
  • Founded: 2014
  • Headcount: 51-200
  • Latest funding type: Series B
  • LinkedIn

Swell Energy helps homeowners and businesses achieve total energy security and independence through cutting-edge smart energy technology.


21. Power-Tech Engineers, Inc.

  • Website: ptei.net
  • Headquarters: Walnut, California, United States
  • Founded: 1992
  • Headcount: 11-50
  • LinkedIn

Power-Tech Engineers is an engineering firm established in 1992. They provide specialized services in project management, construction management, quality assurance, and other areas to support the successful execution of their client's projects. They have expertise in electrical utilities, facilities, mining & minerals, oil & gas, telecommunications, transportation, and water/wastewater industries. Their services include engineering design, owner's engineering, project management, construction management, testing and commissioning, and technical services.


Want to find more electric power companies?


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