Hydrostor and Baker Hughes Deepen Strategic Collaboration to Advance Reliable, Resilient, and Sustainable Power Systems

Hydrostor, a leading global long duration energy storage (LDES) developer and operator, and Baker Hughes, an energy technology company, announced Wednesday a strategic technology solutions and equity agreement. Baker Hughes will deepen its relationship with Hydrostor, integrating Baker Hughes’ technology capabilities as part of Hydrostor’s core design offering for its advanced compressed air energy storage (A-CAES) solution. This includes up to 1.4 GW of Baker Hughes equipment orders for Hydrostor’s flagship projects. The announcement was made at the 2026 Baker Hughes Annual Meeting in Florence.

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“Increasing pressure on electric grids is making long-duration energy storage an urgent priority. Hydrostor's innovative approach offers a low-carbon solution to ensure power reliability across a diverse mix of generation resources,” said Lorenzo Simonelli, chairman and CEO of Baker Hughes. “We are proud to support Hydrostor with critical technology to accelerate these projects, supporting greater global grid resilience, and enabling sustainable power systems at scale.”

“The agreement Hydrostor has signed with Baker Hughes underscores the momentum behind our A-CAES technology platform that is able to cost-effectively provide reliability and resiliency to grids around the world,” said Curtis VanWalleghem, Co-Founder and CEO. “We’re excited to build on our relationship with Baker Hughes as we near construction for our flagship projects and work to expand our project pipeline, as load grows and AI data center infrastructure is being built out globally.”

Baker Hughes has been an investor in Hydrostor since 2019. This latest strategic agreement marks an expansion of the relationship as Hydrostor nears construction on its flagship projects in the U.S. and Australia. In the initial phase of the expansion, Hydrostor will be deploying up to 1.4 GW of power generation and compression technology solutions from Baker Hughes’ extensive portfolio including compression, expander, motor and generator technology.