RackScale Data Centers has teamed up with Energy Vault Holdings for 2 gigawatts of power for data centers, the energy storage company said Dec. 11.

Plans are to utilize Energy Vault’s multi-story B-Nest hyperscale battery energy storage systems at data center sites developed by RackScale. Construction at data sites is scheduled to begin in 2026.

The partnership emerged as hyperscalers continue to lock in electricity, including from renewables and energy storage systems, to meet growing power needs. The surge in demand is driven in part by the computational power needs of artificial intelligence systems. Data center power demand is expected to surge by 160% by 2030, according to Goldman Sachs Research estimates.

“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 for Energy Vault.

The company said its B-Nest system is capable of storing up to 1.6 gigawatt hours of energy per acre, and the system’s ultra-high energy density enables it to provide each data center with full primary power for more than 10 hours.

“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 Data Centers CEO Trent D’Ambrosio said.