Energy Vault and NV Energy commission 440MWh Nevada BESS in ‘compressed schedule’

LinkedIn
Twitter
Reddit
Facebook
Email

Energy Vault and utility NV Energy have put a 220MW/440MWh battery energy storage system (BESS) into operation in Nevada, US.

The Reid Gardner BESS project in Moapa, Nevada, was built on the site of a decommissioned coal plant and the 2-hour unit is one of the largest BESS in the state.

The BESS will help NV Energy manage peak demand periods on the grid. The utility, the largest public one in the state, will operate the project which utilises Energy Vault’s BESS hardware and software including its energy management system (EMS) Vault-OS.

Energy Vault described the construction process as a ‘compressed schedule’ while Jimmy Daghlian, VP renewables, NV Energy commented:

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 overall construction process moved very quickly – which allowed us to bring the project in service for our customers ahead of schedule and ahead of the hot summer months. We appreciate Energy Vault’s problem-solving spirit, commitment, and partnership in bringing this project to life.”

NV Energy was revealed as the owner of the project in December 2022 and construction started in Q2 2023. It is owned by investment firm Berkshire Hathaway, and readers may be familiar with it as one of the main offtakers for the Gemini solar-plus-storage project, one of the world’s largest.

Energy Vault is primarily known for its gravity-based long-duration energy storage (LDES) technology EVx, for which it is close to commissioning its first commercial project in China. The company moved into short-duration with BESS and multi-day LDES with green hydrogen because of a slow take-up of LDES technologies, CEO Rob Piconi explained in an interview last year (Premium access).

Read Next

September 23, 2026
Energy-Storage.news speaks with Nathan Picarsic, co-founder of Horizon Advisory, at the 2026 US Battery Asset Management and Solar and Storage Finance Summits in Garden Grove, California.
September 23, 2026
GridStor, a US-based developer and operator of grid-scale battery energy storage systems (BESS) has closed a US$220 million financing agreement for the 100MW/400MWh White Tank project in Arizona, US.
Premium
September 23, 2026
Compressed air energy storage (CAES) holds much promise for large-scale, LDES, but has struggled to get off the ground outside of China.
September 22, 2026
Residential battery energy storage systems (BESS) across California discharged more than 580MW of peak power to the state’s grid on the evening of 9 September 2026 via a Tesla-Sunrun VPP.
September 22, 2026
Utility PG&E has selected six new California microgrid projects for a US$30 million investment, while Massachusetts’ Department of Energy Resources is awarding US$40 million across 36 BESS projects.