Jupiter Power puts Energy Vault BESS project into commercial operation in ERCOT

July 26, 2024
LinkedIn
Twitter
Reddit
Facebook
Email

Jupiter Power has completed and put into commercial operation a BESS project provided by technology firm and system integrator Energy Vault in the ERCOT, Texas market.

The St Gall 100MW/200MWh battery energy storage system (BESS) in Fort Stockton was deployed using Energy Vault’s B-VAULT AC block units, pictured above. The company also provided engineering, procurement and construction (EPC) services and its Vault-OS energy management system (EMS).

The company won the contract from BESS developer and operator Jupiter Power two years ago shortly before the companies announced an agreement to deploy 2.4GWh of BESS projects utilising locally manufactured technologies.

They claimed that, as for a project Energy Vault deployed for utility NV Power in Nevada earlier this year, the commissioning process for the St Gall project was a streamlined one. Earlier this year the firm won another 400MWh project from Jupiter Power.

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

The battery modules for the St Gall project were provided by Chinese battery OEM Rept, as shown in close-up picture (below) of the BESS containers from a video on Energy Vault’s website.

Energy Vault is primarily known for its gravity-based long-duration energy storage (LDES) technology but in the last two years has moved into deploying BESS as well as green hydrogen multi-day energy storage. CEO Rob Piconi told us in an interview last year that this was because the demand in the LDES space hadn’t taken off as fast as expected.

The firm did however see its first large-scale commercial project using its gravity tech commissioned recently, in China, and has partnered with an architecture firm to explore deploying it in skyscrapers.

The company provided an update on its strategy in a recent investor and analyst day, outlining three key tenets for its strategic focus: addressing the world’s largest markets and growth regions, delivering more predictable and recurring revenues, and delivering strong growth and profitability.

It expanded into the Australian market earlier this year with a project order, but revealed that revenues in 2024 would be substantially lower than predicted.

The company is also expanding into asset ownership, initially through a project in California combining BESS and green hydrogen. It would not be the first LDES company to move from being a technology provider only to fully owning assets, with others including vanadium redox flow battery (VRFB) firm Invinity.

24 March 2026
Dallas, Texas
The Energy Storage Summit USA is the only place where you are guaranteed to meet all the most important investors, developers, IPPs, RTOs and ISOs, policymakers, utilities, energy buyers, service providers, consultancies and technology providers in one room, to ensure that your deals get done as efficiently as possible. Book your ticket today to join us in 2026!
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

March 23, 2026
The New Jersey Board of Public Utilities (NJBPU) has selected developer and IPP Elevate Renewables’ 600MWh battery energy storage system (BESS) for development in Ridgefield, New Jersey, US.
March 20, 2026
A new report from the US Energy Storage Coalition (ESC) indicates that the American battery manufacturing sector surpasses 100% of US demand for energy storage systems (ESS) and modules.
March 20, 2026
Energy storage developer and system integrator Energy Vault has released its Q4 and full year 2025 financial results, showing growth credited to entering the AI infrastructure market, expanding projects in Australia and its ‘Asset Vault’ subsidiary.
March 20, 2026
Energy-Storage.news proudly presents our webinar with GridBeyond, ‘Beyond Arbitrage: Financial Strategies for Energy Storage Assets.’
March 19, 2026
Energy-Storage.news speaks to Dr. Kai-Philipp Kairies, CEO and co-founder of ACCURE Battery Intelligence, ahead of the upcoming Energy Storage Summit USA 2026.