Energy Vault Holdings, Inc., a global provider of sustainable, grid-scale energy storage and AI-driven infrastructure solutions, has announced its formal entry into the Japanese market. The company has signed a binding agreement to acquire an 850 MW Battery Energy Storage System (BESS) development pipeline from a leading domestic energy storage developer. The transaction also includes onboarding a local team of energy experts, strengthening Energy Vault’s presence in one of the fastest-growing energy storage markets among developed economies.
Portfolio Details and Project Timeline
The acquired portfolio includes 350 MW of advanced-stage BESS projects that are expected to start building in the second half of 2027 and start commercial operations in the second half of 2028. The deal also includes 500 MW of early-stage projects, which gives the company a strong pipeline of projects to work on for many years to come and sets it up for long-term growth in Japan.
Leveraging Local Expertise and Market Opportunities
Energy Vault’s acquisition gives it a direct presence in Japan, a market that is growing quickly due to grid constraints, the rapid adoption of renewable energy, and an expected compound annual growth rate (CAGR) of over 50% in BESS capacity. Integrating the local development team is a key part of the plan. They will have knowledge of how to buy land, get permits, and connect utilities.
By combining local capabilities with its global supply chain, asset management expertise, and VaultOS™ energy management software, Energy Vault aims to support Japan’s 2050 carbon neutrality goals while tapping into diverse revenue streams, including wholesale arbitrage, capacity markets, and grid balancing services.
Leadership Commentary on Growth Strategy
“Entering the Japanese market is a key component of our high growth markets expansion strategy and represents one of the most compelling energy storage growth opportunities globally,” said Robert Piconi, Chairman and CEO of Energy Vault. “This acquisition provides us with a foundational leadership position in Japan with advanced stage, attractive storage IPP projects coupled with critical local execution capabilities necessary to deliver at the highest performance levels within the Japanese BESS market.”
Technology and Future Growth Outlook
Energy Vault plans to deploy its technology-agnostic solutions, including the B-VAULT™ AC platform, and integrate alternative battery chemistries such as sodium-ion through its partnership with Peak Energy. The company highlighted Japan’s shift toward “revenue stacking,” where storage systems generate multiple income streams to ensure grid stability.
With a global portfolio exceeding 1 GW of energy storage and AI infrastructure assets, Energy Vault expects these developments to contribute to over $180 million in annual recurring EBITDA within the next 12 to 36 months, reinforcing its long-term growth trajectory.
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