Hydrostor and AECOM Partner on Compressed Air Energy Storage Projects

By Global Infrastructure Sherpa · Sep 17, 2025

Partnership Compressed Air Energy Storage announced United States Sep 17, 2025

7 GW

Capacity

development

Stage

Willow Rock Energy Storage Center

Project

Hydrostor and AECOM announced a partnership to advance compressed air energy storage (CAES) projects in North America. AECOM will provide engineering services to support Hydrostor's project development efforts.

Source Intelligence

KEY DETAILS

Hydrostor has 15+ projects in their pipeline. Quote: 15+ Projects in our pipeline

“

Capacity

These advanced projects represent small portion of our 7-gigawatt pipeline, with projects currently in development across the United States, Canada, and Australia.

“

Location

Hydrostor’s Willow Rock Energy Storage Center Signs Offtake Agreement with California Community Power Company

“

PPA Details

Hydrostor’s Willow Rock Energy Storage Center Signs Offtake Agreement with California Community Power Company

PARTIES MENTIONED IN SOURCE

Hydrostor developer

"Hydrostor is a leading energy storage, technology, and infrastructure company dedicated to developing utility-scale long duration energy storage solutions."

medium quality Enriched Feb 19, 2026