Fluence sets sights on displacing gas as work starts on 400MWh storage plant

By John Parnell
LinkedIn
Twitter
Reddit
Facebook
Email
A rendering of the completed Alamitos facility. Credit: The AES Corp.

Standalone energy storage can challenge new gas plants in the US right now, Fluence’s COO has said.

The firm has broken ground on a 100MW / 400MWh project in Southern California for AES, one half of the Fluence joint venture, along with Siemens. It is scheduled to be operational on 1 January, 2021.

The Alamitos project will replace an existing AES-owned gas peaker plant with a system built on Fluence’s Advancion 5 batteries. As well as fulfilling peaker duties, the storage system will also be used to provide greater grid reliability and renewable power integration. 

“Alamitos energy storage will stand as the first of a new generation of energy storage procured as stand-alone alternatives to new gas plants. It represents a whole new way to think about capacity and reliability,” said John Zahurancik, Chief Operating Officer for Fluence. “Its size, flexibility and long duration stand as a benchmark, and showcase energy storage as a mainstream option for peaking power and grid support.”

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

A just-published NREL report demonstrated the potential for energy storage to provide peaker capacity in the US putting the scale of the opportunity at 76GW.

AES was awarded a 20-year power purchase agreement by SCE to provide a combination of modern gas-fired turbines and energy storage.

“Energy storage is our most flexible resource. It can charge or discharge virtually instantaneously and helps us to maximize our use of renewable energy on the grid,” said Colin Cushnie, VP power supply, Southern California Edison. “Projects such as this signal a new direction for how we can meet our customers’ need for reliable energy with a clean mix of resources.”

This article has been amended to more accurately reflect the project's completion date.

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 11, 2026
DNV has independently verified that Fluence’s global fleet of battery energy storage systems (BESS) achieved 98.7% MW-weighted availability.
June 10, 2026
EDP and SRP complete 200MW/800MWh Arizona BESS, Pathway Power closes $150m facility, and B2U secures Waymo supply deal for second-life EV batteries in grid storage.
Premium
June 9, 2026
ESN Premium speaks with Dr Thomas Sisto, of flow battery developer XL Batteries, about using LDES to combat grid strain from heatwaves and data centres.
June 9, 2026
Rolls-Royce and Fluence have secured BESS orders in Latvia and Poland, respectively, while CATL has partnered with Merus Power for 3GWh of deployments across Northern Europe.
June 8, 2026
California-headquartered developer esVolta has closed an expanded corporate credit facility providing up to US$450 million of capital to expand new utility-scale energy storage projects in the US.