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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

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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

September 16, 2025

Hydrostor Announces US$55 Million in Funding From Export Development Canada to Finance Development Expenditures for Late-Stage Project

Read on thecanadianpressnews.ca »

June 26, 2025

Hydrostor Brings on Former Shell Executive, Glenn Wright, as New Member of Board of Directors

Read on The Daily News »

February 17, 2025

Hydrostor Secures $200 Million In Funding From Canada Growth Fund, Goldman Sachs, And CPP - The Union Journal

Read on The Union Journal »

February 12, 2025

Power move: Toronto’s Hydrostor gears up to start construction on its inaugural energy storage facilities

Read on Toronto Star »

January 17, 2025

Rosamond energy site gets loan from feds

Read on Antelope Valley Press »

January 9, 2025

Hydrostor's Willow Rock Energy Storage Project Gets Green Light For $1.76 Billion Loan Guarantee From U.S. DOE

Read on SolarQuarter »

Work at Hydrostor

Posted September 12, 2025

Document Controller

Colorado, USA

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Posted August 16, 2025

Geological Engineer

Toronto, ON, Canada

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Posted August 13, 2025

Quality Compliance Manager

Colorado, USA

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