Energy Vault Holdings on Dec. 11 announced a strategic partnership with RackScale Data Centers that aims to accelerate the delivery of 2 gigawatts of firm, primary power to data center sites developed by RSDC through the deployment of Energy Vault's proprietary B-Nest™ hyperscale battery energy storage system.
The parties aim to begin construction at data center sites in 2026.
The B-Nest™ is a proprietary multi-story structure designed to house batteries for onsite energy storage, serving space-constrained project sites.
Capable of storing up to 1.6 GWh of energy per acre, the B-Nest represents a more than 8 times increase in installed site energy density over traditional ground-mounted Battery Energy Storage system installations.
This ultra-high energy density enables the B-Nest to provide each data center with full primary power for 10 plus hours.
When paired with an interruptible utility power contract, the B-Nest can ensure full power deliverability to each data center during demand response events.
"The result is significant acceleration of data center project development timelines enabled by rapid delivery of firm power, allowing RSDC to avoid issues created by the shortage of available grid power seen across the industry," a news release about the announcement said.
The partnership between Energy Vault and RSDC includes the planned deployment of 2GW/20GWh of B-Nest infrastructure "that will drive a rapid portfolio build-out, with the ability to capture supplementary revenue through participation in demand response programs with local utilities. By taking part in demand response events during times of system strain, RSDC will also help to stabilize the grid and supports local utilities’ efforts to expand renewable power for the data center industry."
