Energy Vault and Peak Energy Partner to Develop Sodium-Ion Storage for AI Data Centers

Agreement includes 1.5 GWh supply deal to accelerate global deployment and reduce costs

Published on Feb. 9, 2026

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Energy Vault Holdings, Inc. and Peak Energy, the first American manufacturer of sodium-ion energy storage systems, have announced a strategic partnership to develop a dedicated energy storage architecture designed specifically for AI Neoclouds and AI-first data center operators. The new solution combines Peak Energy's sodium-ion technology with Energy Vault's proprietary system design and software controls to deliver faster deployment, lower capital cost, and enhanced operational safety for AI infrastructure.

Why it matters

Traditional battery systems are not well-suited to the extreme and volatile power demands created by AI training and inference workloads. This partnership aims to address those limitations by providing a purpose-built energy storage solution that can better handle the needs of AI-powered data centers.

The details

The integrated solution is exclusive to Energy Vault and serves as a key differentiator for the company's modular 'powered shell' data center offering. Benefits include simplified electrical design, reduced reliance on traditional UPS systems, lower cooling requirements, and improved handling of high-volatility AI compute loads. Energy Vault has also secured exclusive channel partner rights for Peak Energy's sodium-ion technology in Australia and Japan.

  • The partnership was announced on February 9, 2026.

The players

Energy Vault Holdings, Inc.

A leader in sustainable grid-scale energy storage and AI power infrastructure.

Peak Energy

The first American manufacturer of sodium-ion energy storage systems.

Marco Terruzzin

Chief Revenue Officer at Energy Vault.

Landon Mossburg

Chief Executive Officer at Peak Energy.

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What they’re saying

“The rapid growth of AI is exposing fundamental limitations in conventional power infrastructure. This solution enables faster deployment, lower cost, and improved safety by combining Energy Vault's integration platform with Peak's sodium-ion technology.”

— Marco Terruzzin, Chief Revenue Officer, Energy Vault (Business Wire)

“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.”

— Landon Mossburg, Chief Executive Officer, Peak Energy (Business Wire)

What’s next

Energy Vault and Peak Energy plan to accelerate the global deployment of their integrated energy storage solution for AI-powered data centers.

The takeaway

This partnership demonstrates the growing need for energy storage solutions tailored to the unique power demands of AI infrastructure, as traditional battery systems struggle to keep up. The combination of Peak's sodium-ion technology and Energy Vault's integration platform could provide a more cost-effective and reliable option for data center operators racing to power the AI revolution.