What’s New With the Willow
Rock Energy Storage Center?
Project Updates
Latest Updates
See the latest updates from the Willow Rock Energy Storage Center project team here. Learn about recent community events, regulatory updates, and see communications from Hydrostor to the community
Update
July 9, 2026
Open Houses for Local Contractors and Suppliers Show Growing Momentum for Willow Rock Energy Storage Center
Update
February 25, 2026
Hatch and Hydrostor announce strategic execution partnership and equity agreement to deliver advanced compressed air energy storage
Update
February 12, 2026
Hydrostor’s Willow Rock Energy Storage Center Signs Offtake Agreement with California Community Power
Update
January 28, 2026
Hydrostor and Baker Hughes Deepen Strategic Collaboration to Advance Reliable, Resilient, and Sustainable Power Systems
Update
December 19, 2025
Hydrostor’s Willow Rock Energy Storage Center Obtains Final Approval for Power Plant License
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