Long-duration battery energy storage company Exowatt has launched a new business arm aimed at supplying powered land and energy infrastructure for hyperscale data centres, as rising AI demand strains grid capacity.
The new unit, ExoRise, brings together land acquisition, power supply and Exowatt’s solar-powered long-duration battery technology to deliver round-the-clock electricity for large-scale data centre developments.
“Hyperscalers should not have to piece together land, power and infrastructure on their own,” said Hannan Happi, chief executive officer of Exowatt. “ExoRise delivers everything together so customers can focus on compute while we handle the power.”
At the core of the offering is Exowatt’s P3 system, a modular and dispatchable solar solution that captures solar energy and stores it as heat in a long-duration thermal battery. The stored heat is then converted into electricity on demand. Designed to fit within the footprint of a standard 40-foot shipping container, the system is intended to be deployed flexibly at scale.
ExoRise will focus on behind-the-meter and off-grid projects on remote land, an approach the company says avoids adding pressure to existing electricity grids and passing higher costs on to ratepayers.
The unit will be led by Nic Bustamante, Exowatt’s chief data centre officer. “The growth of AI is colliding with real limits on grid capacity,” Bustamante said. “ExoRise is designed to solve that problem by delivering dependable power at the speed AI requires.”
The first pilot project is expected to become operational by the end of 2026 and will support what Exowatt says is a customer backlog exceeding 90 GWh.
Exowatt raised USD 70 million in a Series A funding round last year and counts high-profile angel investors among its backers, including Sam Altman and Leonardo DiCaprio.
