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

Photo of Curtis VanWalleghem

Curtis VanWalleghem

Co-Founder, CEO & Board Member at Hydrostor

More about Curtis »
Employees 51–100
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 Five Regions

Press Mentions

November 24, 2019

This abandoned Goderich salt mine could hold the key to a greener, cleaner future in Ontario

Read on CBC News »

November 30, 2022

Hydrostor Announces Advisory Board to Accelerate Deployment of Long Duration Energy Storage Infrastructure

Read on GlobeNewswire News Room »

January 10, 2022

Hydrostor Secures US$250 Million Investment from Goldman Sachs Asset Management to Accelerate Growth

Read on GlobeNewswire News Room »

August 4, 2021

Hydrostor Secures $10M from Business Development Bank of Canada (“BDC”) To Support the Rollout of Long-Duration Energy Projects Globally

Read on GlobeNewswire News Room »

September 21, 2019

Storing energy in compressed air could finally become cheap enough for the big time

Read on Quartz »

February 8, 2019

Underground mine project to turn hot air to electricity

Read on The Sydney Morning Herald »

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