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Hydrostor

Providing grid-scale electricity storage by storing renewable energy as compressed air.

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Curtis VanWalleghem

Co-Founder, CEO & Board Member at Hydrostor

More about Curtis »
Employees 101–200
Headquarters Toronto, Ontario, Canada
Hydrostor is a leader in Advanced Compressed Air Energy Storage (A-CAES), a technology uniquely suited to enable the transition to a cleaner, more reliable electricity grid. A-CAES helps address electricity system needs for dispatchable capacity, renewable integration and optimization, transmission deferral and ancillary services, and is ideal for use in behind-the-meter or remote applications for mines and large industrial operations. Hydrostor's solution delivers low-cost, long-duration, bulk energy storage that is synchronous and emission-free, and can be flexibly located, including as replacements for retired fossil fuel plants. The proprietary technology is now the leading low-cost bulk energy storage solution -- at half the cost of lithium ion batteries and 10 times the lifespan. Hydrostor is backed by sustainable infrastructure developer/funder Meridiam and equipment supplier BakerHughesGE.

Currently Operating in Four Regions

Press Mentions

February 3, 2026

Baker Hughes to invest in project

Read on Antelope Valley Press »

January 30, 2026

Baker Hughes unveils plan to invest in energy storage project near Rosamond

Read on The Bakersfield Californian »

January 28, 2026

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

Read on GlobeNewswire News Room »

January 28, 2026

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

Read on GlobeNewswire News Room »

December 30, 2025

Energy storage project near Rosamond OK’d

Read on Antelope Valley Press »

December 19, 2025

Hydrostor’s Willow Rock Energy Storage Center Obtains Final Approval for Power Plant License

Read more »

Work at Hydrostor

Posted January 25, 2026

Engineering Program Manager

Toronto, ON, Canada

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Posted January 15, 2026

Project Engineer

Toronto, ON, Canada

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Posted January 15, 2026

Senior Accountant

Toronto, ON, Canada

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Posted January 15, 2026

Financial Planning and Analysis Manager

Toronto, ON, Canada

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Posted January 15, 2026

Corporate Finance Manager

Toronto, ON, Canada

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