Energy Vault and Peak Energy Forge Strategic Partnership to Power AI Data Centers with Sodium-Ion Storage
February 10, 2026
The exponential energy demands of artificial intelligence are pushing data center power infrastructure to its limits, creating an urgent need for storage solutions that can handle volatile, high-peak workloads. In a significant move to address this challenge, US energy storage firm Energy Vault has entered a strategic partnership with battery manufacturer Peak Energy to co-develop a dedicated energy storage architecture for AI data centers and grid-scale projects.
The collaboration will integrate Peak Energy's proprietary sodium-ion battery technology with Energy Vault's system design and its Vault OS energy management software platform. The companies state that this combined solution is specifically engineered for the unique power profiles of AI training and inference, which conventional battery energy storage systems (BESS) are not optimized to support. As part of the agreement, Energy Vault has secured a supply deal for 1.5 gigawatt-hours (GWh) of US-manufactured sodium-ion battery systems from Peak. "The rapid growth of AI is exposing fundamental limitations in conventional power infrastructure," said Marco Terruzzin, Chief Revenue Officer at Energy Vault. He noted that the partnership aims to enable "faster deployment, lower cost, and improved safety" by merging Energy Vault's integration platform with Peak's battery technology. The architecture is intended to simplify electrical design, reduce reliance on traditional UPS systems, and improve the handling of high-volatility compute loads for Energy Vault's "powered shell" data center offering.
The domestic sourcing of battery systems is a key component, as it could allow projects to qualify for Domestic Content Investment Tax Credits, potentially improving the solution's economics compared to lithium-ion systems and foreign-sourced batteries. "Lowering the cost of energy is essential for winning the AI race, and Peak's proprietary sodium-ion energy storage systems offer the lowest cost and fastest way to get data centers on the grid," asserted Landon Mossburg, CEO of Peak Energy. All systems deployed under this partnership will be managed by Energy Vault's Vault OS platform, which will control the operating characteristics of the sodium-ion batteries and optimize power dispatch. Furthermore, Energy Vault has secured exclusive channel partner rights for Peak’s technology in Australia and Japan, positioning it as the sole provider in those markets.
This deal marks another step in Energy Vault's expansion within the data center sector, following a December 2024 agreement to supply 2GW/20GWh of storage to RackScale Data Centers.
Source: datacenterdynamics
