Energy Vault has partnered with RackScale Data Centers (RSDC) to deliver 2GW/20GWh of primary power to RSDC data centers through its novel battery energy storage system (BESS).
Energy Vault expects to construct the BESS at RSDC data center sites in 2026.
Energy Vault will deploy its proprietary B-Nest BESS at RSDC-operated data center sites. B-Nest is a modular multi-story structure designed to house stackable lithium-ion BESS units. The company claims the technology can store up to 1.6GWh per acre, providing data centers with full primary power for more than ten hours.
“With the rapid increase in power demand from the rise of the data center sector, it is absolutely essential that renewable energy generation and storage become key points of focus to power the AI data center boom,” said Marco Terruzzin, chief commercial and product officer, Energy Vault.
The partners plan to capture supplementary revenue through participation in demand response programs with local utilities to support grid stability and local utilities’ efforts to expand renewable power for the data center industry.
“The B-Nest system’s high energy density and advanced safety design are game-changers for our operations, enabling us to accelerate firm grid power interconnections and onsite generation to meet the needs of our data center sites,” RackScale CEO Trent D’Ambrosio said.
The location and capacity of the data centers were not disclosed.
DCD has reached out to both companies requesting further information.
Rackscale was launched in 2022.
Energy Vault is a US-based company specializing in gravity and kinetic energy-based long-duration energy storage products. Earlier this year, it signed a gravity storage deal in southern Africa. The group expects to deliver multiple gigawatt-hours of energy storage within the 16-state Southern African Development Community region.
Data center firms are increasingly looking at BESS as a potential way to decarbonize their operations. In October, Amazon partnered with Unbound Potential, a Swiss battery startup, to trial its BESS technology in a pilot project at Amazon's European logistics centers.
