List of the 40 largest renewable energy developers in California [2024]

199,99 incl. VAT

Features of Renewables.Digital

Get access to our list of the most important renewable energy developers from California as an excel file for 199,99€. Developers create new renewable assets like solar parks and wind farms. The list includes further information (like executives’ names, contact details, etc.).  The list includes free-of-charge updates and additional entries for one year, sent out via email.

Last update: 02nd of January, 2024

For a free preview please contact: hello [at]

This list is an excerpt of our list of the 350 largest renewable energy developers in the United States


California-based wind farm developer

List of 3 large renewable energy developers from California

Besides landmarks like the Golden Gate Bridge or the famous Silicon Valley, California is especially known for its sunny weather. And the people of America also know very well how to use the power of the sun – the oldest solar power plant in the world with 354 MW is located in California. But it’s not just the power of the sun that is being harnessed to generate renewable energy; other sustainable methods of energy generation, such as onshore wind turbines, are also being implemented in California. In this article, three renewable energy developers headquartered in California will be presented.

Update 2024: A decision by the California Public Utilities Commission (PUC) has caused a lot of debate. This decision focuses on customers with multiple electric meters, like schools, apartments, and businesses, and has affected how cost-effective solar power systems are. The impact of this decision is being felt throughout the solar industry, leading to job losses and worries about California’s goal of reaching 100% clean energy by 2045.

1) Orion Renewable Energy Group

The Oakland based renewable energy developer with regional focus on North Carolina already realized projects with a total capacity of over 6000MW.  Considering themselves as pioneers in the renewable power generation, the company consisting of resource specialists, engineers and developers strives to accelerate the energy transition. By working with local communities, the 1998 founded renewable energy group aims to optimize not only their own business but also create opportunities and jobs for the landowners and regional businesses.

2) Absolutely Solar

Having their headquarter in Los Angeles, the renewable energy developer focuses on realizing solar project.  By gathering knowledge and experience about the development of renewable energy projects, Absolutely Solar was able to implement ground-mounted photovoltaic solar energy systems around Los Angeles and the greater Southern California area. Furthermore, the renewable energy company is currently taking place in a program launched by the city of Los Angeles, which is creating the opportunity for building owners to lease empty rooftops to Absolutely Solar and therefore generate an additional revenue stream.

3) Sempra U.S. Gas & Power

The stock-listed renewable energy developer (NYSE: SRE) with base in San Diego is implementing solar farms, onshore wind parks and energy storage projects in the area of North America and Mexico. By promoting energy diversification and renewable energy services, they generated a revenue of €10,829 million. Being aware of their responsibilities as energy supplier, Sempra U.S. Gas & Power strives to lead the global energy transition by taking on the though challenge of proving responsible energy solutions including natural gas distribution as well as wind and solar power generation.

California-based solar park developers

Developers for solar and wind energy in California
California-based renewable energy developers

California is the state with the largest share of sustainable energy production. As a state with a high number of hours of sunshine, California is also a popular location for renewable energy project developers of all kinds.  Project developers are central to the successful expansion of green energies. Developers select land, handle studies and permitting, plan and design the projects, and are closely linked to installation companies and other necessary stakeholders. Our list is the most extensive database of California-based renewable energy developers and gives a great overview of companies with a sustainable energy project pipeline.

Our list is based on a market, news and transaction analysis process

In order to compile our list, our team screens every possible energy deal in the United States, analyzes the involved parties and adds them to our database. Every project developer in our list can also be found in our directory. In case we missed a relevant North American renewable energy developer, you can submit a new listing here, if we made an error on a certain firm – for instance not mentioning the installed capacity – you can always report an error on the respective page. Through crowdsourcing, we consequently improve our list. As our list is directly downloadable and editable in an Excel format, you can filter the entries according to your wishes, for example developers specialised in solar energy.

Included columns in our list

  • Company Name
  • Legal form
  • URL
  • Country
  • City
  • Postcode
  • Address
  • Email
  • Phone
  • Onshore Wind
  • Offshore Wind
  • Solar
  • Hydro
  • Tidal
  • Hydrogen projects
  • Energy storage
  • Biomass
  • IPP
  • PPA
  • LinkedIn Management
  • Management
  • Regional Focus
  • Founding year
  • Installed capacity in MW

Picture Sources: American Public Power Association & Manny Becerra via Unsplash (08.05.2023)