AES purchases 2GW Bellefield solar-plus-storage project in California

June 7, 2023
Facebook
Twitter
LinkedIn
Reddit
Email
The 250MW Petersburg Solar Project, another large PV farm owned by AES Corporation. Image: AES Indiana via Twitter.

US utility AES Corporation has added the 2GW Bellefield solar-plus-storage project to its portfolio after acquiring it from the project developer, Avantus.

Located in Kern County, California, the Bellefield project is split into two phases, each with up to 500MW of solar and 500MW of four-hour duration battery storage (2,000MWh). The two phases are expected to come online in 2025 and 2026 respectively.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Phase one has a 15-year power purchase agreement (PPA) in place with one of AES’ corporate customers, the company said. Some of the backing for the purchase was provided by Alberta Investment Management Corporation, an investor in AES with a 25% stake in its growth projects. It invests on behalf of various funds from the province of Alberta, with over US$150 billion of assets under management.

“This significant acquisition accelerates AES’ deployment of unique renewable energy solutions to our key corporate clients in the California market,” said Andrés Gluski, AES president and CEO. “With the addition of Bellefield phase one, our signed PPA backlog grows to more than 12 GW, which represents growth of more than 80% from our current installed renewable generation fleet. The vast majority of this backlog is expected to come online over the next two years.”

Last month, AES revealed plans to triple its renewable energy capacity by 2027, adding 25-30GW in the next four years. Upon completion, the company said that Bellefield will be the largest solar-plus-storage project in the US. AES said that it plans to add 3.4GW of renewables in 2023, with 2.1GW in the US alone.

In February it flicked the switch on a 100MW Arizona PV project, with a PPA in place with social media giant Meta. Corporate PPAs form a large part of AES’ practice; it signed 1.3GW of PPAs in Q3 2022 alone.

16 June 2026
Napa, USA
PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 16-17 June 2026, will be our fifth PV ModulelTech conference dedicated to the U.S. utility scale solar sector. The event will gather the key stakeholders from solar developers, solar asset owners and investors, PV manufacturing, policy-making and and all interested downstream channels and third-party entities. The goal is simple: to map out the PV module supply channels to the U.S. out to 2027 and beyond.

Read Next

December 5, 2025
Origis Energy has raised US$265 million in finance from Advantage Capital to support the development of a 305MW solar PV portfolio in the US.
December 5, 2025
WBS Power has sold the 150MW solar, 500MW/2,000MWh BESS Project Jupiter in Brandenburg, Germany, to investor Prime Capital.
December 5, 2025
Over 140 US solar companies have urged Congress to reconsider changes to permitting which they say have resulted in “a nearly complete moratorium” on solar project permits.
Premium
December 5, 2025
In November, the Colorado PUC ordered utility Xcel Energy to provide higher-quality information, and introduce flexible tariffs.
December 4, 2025
High power prices and increased energy storage usage have led to a sharp increase in self-consumption of solar power in Germany since 2022, according to data from the Fraunhofer Institute for Solar Energy Systems (ISE).
Sponsored
December 4, 2025
LONGi  unveiled its energy storage strategy in London last week, officially announcing its entry into the storage sector with the launch of the LONGi Energy Storage One-Stop Solution.

Upcoming Events

Upcoming Webinars
December 17, 2025
2pm GMT / 3pm CET
Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 24, 2026
Dallas, Texas
Solar Media Events
April 15, 2026
Milan, Italy
Solar Media Events
June 16, 2026
Napa, USA