Energy Vault and Peak Energy have signed a strategic development agreement to co-develop a sodium-ion battery storage platform tailored for AI-first data centers. The partnership includes a 1.5 GWh U.S.-manufactured battery supply agreement and exclusive rights in Australia and Japan, strengthening domestic supply chains, reducing costs, enhancing safety, and accelerating global deployment of AI-dedicated energy storage solutions.
PROJECT SNAPSHOT
U.S.-based energy storage and power infrastructure company, Energy Vault Holdings, Inc. has entered into a strategic partnership with Peak Energy, a U.S.-based sodium-ion battery manufacturer, to develop sodium-ion battery storage solutions tailored for AI-focused data center operators. The agreement covers joint development of dedicated energy storage architecture and includes a 1.5 GWh supply arrangement for U.S.-manufactured sodium-ion battery systems.
The companies will co-develop a full-stack storage platform that integrates Peak Energy’s sodium-ion battery technology with Energy Vault’s proprietary system design and Vault OS™ energy management software. The platform is designed to address the high and volatile power demands associated with AI training and inference workloads, which differ from traditional grid load profiles. The solution is planned for integration across Energy Vault’s AI infrastructure portfolio, including its modular powered shell data center platform.
Traditional battery systems are designed for steady grid loads and are generally less suited to the extreme and volatile power demands associated with AI training and inference workloads.
Under the partnership, the companies will develop a dedicated energy storage architecture tailored for AI Neoclouds—cloud platforms optimized specifically for AI workloads—and AI-first data center operators. The co-developed solution integrates Peak Energy’s sodium-ion battery technology with Energy Vault’s proprietary system design and Vault OS™ software platform, forming a purpose-built configuration for high-variability compute environments.
In parallel, Energy Vault executed a definitive supply agreement securing 1.5 GWh of Peak Energy’s U.S.-manufactured sodium-ion battery systems. By sourcing domestically manufactured batteries, projects developed under this framework are expected to qualify for Domestic Content Investment Tax Credits in the United States. The companies indicated that this structure may improve project economics for both grid-scale battery energy storage systems and AI-focused infrastructure deployments compared to foreign-sourced alternatives.
The agreement also grants Energy Vault exclusive channel partner rights for Peak Energy’s sodium-ion technology in Australia and Japan. These regional rights expand the companies’ commercial footprint into markets characterized by high power demand and grid constraints.
Marco Terruzzin, Chief Revenue Officer at Energy Vault, said that rapid AI growth is highlighting structural constraints within conventional power infrastructure. He added that the combined integration platform and sodium-ion technology are intended to support faster deployment, lower costs, and improved operational safety.
Landon Mossburg, CEO of Peak Energy, said lowering energy costs is critical for AI infrastructure, adding that the company’s sodium-ion systems support cost-competitive and rapid data center deployment.