Wärtsilä completes 250MWh battery storage project in California for REV Renewables

LinkedIn
Twitter
Reddit
Facebook
Email

Energy technology firm Wärtsilä completed a 125MW/250MWh battery storage project for REV Renewables in California in time to help California ISO (CAISO) deal with record heatwave conditions encountered in September 2022.

In an announcement today (21 February), Wärtsilä said the battery storage project – called LeConte – was commissioned in time to provide grid stability during the state’s record-setting September 2022 heatwave.

As Energy-Storage.news wrote at the time, California’s fleet of battery storage played a major role in avoiding widespread outages. The state now has around 4.6GW of battery storage online as of end-January 2023.

The project, pictured, was deployed for developer REV Renewables in Calexico on the US-Mexico border. It is situated at a major junction point for energy producers in the CAISO and SDG&E territories, the latter being one of California’s big three investor-owned utilities (IOUs).

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

It will follow the automatic generation control signal to maintain system frequency and perform peak day operations to relieve congestion on transmission lines originating from the plentiful solar PV generation in the region.

The Finland-based company provided its modular energy storage system GridSolv Quantum along with its energy management system (EMS), the GEMS Digital Energy Platform, and LeConte will be managed long-term through its Service+ solution. It is Wärtsilä’s first project for REV Renewables.

“Battery energy storage is a key component to maintaining reliability and stability of California’s electricity grid,” said Cody Hill, REV Renewables Senior Vice President, Battery Systems. “Wärtsilä worked with us to manage supply chain challenges, to collaborate with local communities and to perform site safety and training to bring this complex energy storage project online.”

The company is one of the largest battery storage system integrators globally according to IHS Markit’s report for 2021. In the last few months alone, energy storage systems it has deployed have been inaugurated in Hawaii, the Philippines and Chile while this week it revealed it was the provider for part of a large rollout in Scotland by Zenobē Energy.

Energy-Storage.news’ publisher Solar Media will host the 5th Energy Storage Summit USA, 28-29 March 2023 in Austin, Texas. Featuring a packed programme of panels, presentations and fireside chats from industry leaders focusing on accelerating the market for energy storage across the country. For more information, go to the website.

15 September 2026
San Diego, USA
You can expect to meet and network with all the key industry players again in 2025 from major US asset owners, operators, RTOs and ISOs, optimizers, software and analytics providers, technical consultancies, O&M technology providers and more.

Read Next

June 17, 2026
Octopus Energy Generation has partnered with ZE Energy to invest in and build one of Italy’s biggest BESS projects, while Eco Stor has secured financing for one of Germany’s, which it is already building. Optimiser Entrix has also won two large contracts in Germany and the Netherlands.
June 16, 2026
Energy Dome is advancing a 10-hour CO2 Battery project in Arizona, with SRP and Google, while Invinity announces the sale of North America’s largest VRFB, in California.
June 16, 2026
AESC has announced a strategic supply partnership with BESS system integrator Prevalon Energy.
June 16, 2026
The NSW Energy Security Corporation has deployed its first investment, committing AU$100 million to a large-scale battery storage platform.
Premium
June 15, 2026
ESN Premium speaks with ASL on the latest FERM tender results in South Australia and why batteries excelled.