Learn more about Advanced Compressed Air Energy Storage 
We’re a leading global developer and operator of long duration energy storage projects, with a team of dedicated clean energy professionals committed to a proven proprietary technology that can cut carbon pollution at scale.
integrates compressed air, purpose-built hard-rock caverns, and water with proven components from traditional mining and gas operations to provide a low-impact and low-cost energy storage solution for 8 hours to multi-day durations.
Our investors Hydrostoris backed by Goldman Sachs Asset Management, Canada Pension Plan Investment Board, Canada Growth Fund and other forward-thinking investors, providing us with the financial strength and security to commit to high impact clean energy projects.
| Goldman Sachs Asset Management |
Canada Pension Plan Investment Board |
Canoe Financial | ArcTern Ventures | Lorem Partners |
Long duration energy storage is the to support carbon free electricity.
Using purpose-built hard-rock caverns, Hydrostor’s technology provides a proven solution for delivering long duration energy storage of eight hours or more to power grids around the world, shifting clean energy to distribute when it is most needed, during peak usage points or when other energy sources fail.
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Using compressed air and water to store energy, A-CAES allows grid operators to draw on clean energy, even when there is no sun to fuel solar panels and no wind to generate energy from turbines.
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Hydrostor’s technology has the benefit of using existing technology components and well-established engineering processes in a unique and patented application.
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| 1/6 Low cost, long life |
| 2/6 Locate where needed |
| 3/6 Proven, reliable equipment |
| 4/6 Customized system design |
| 5/6 Ancillary services |
| 6/6 Emission free operation |
| Company Feb 24, 2025 Broken Hill Mini-Grid Takes Big Step Forward as Development Application Approved for Silver... Read More |
| Company Feb 13, 2025 Hydrostor Announces $200 Million in Funding from Leading Investors to Accelerate Canadian and... Read More |
| Insights Jan 24, 2025 A-CAES vs. CAES: The Next Frontier in Compressed Air Technology Read More |
| In the news Jan 13, 2025 Massive underground air battery project lands $1.76B DOE award Read More |
| In the news Dec 2, 2024 How giant ‘batteries’ in the Earth could slash your electricity bills Read More |
333 Bay Street, Suite 520
Toronto Ontario M5H2R2
Canada
(416) 548-7880
1125 17th Street, Suite 700
Denver, Colorado 80202
USA
Level 10, 420 St.Kilda Road
Melbourne, Victoria 3004
Australia
is our first commercial A-CAES facility
Entirely fuel-free, the plant produces zero greenhouse gas emissions, and helps enable a cleaner, more affordable, and more flexible electricity grid.
With 1.75 megawatts (MW) of peak power output; a 2.2 MW charge rating; and 10+ megawatt-hours (MWh) of storage capacity, this utility-scale commercial application of A-CAES technology is a significant achievement, conforming to all interconnection, uptime, performance and dispatch standards as set out by the IESO.
Hydrostor’s Goderich energy storage facility proves out the ability of Hydrostor’s A-CAES technology to fully participate in and deliver a range of valuable grid services to electricity markets.
Contributing to deeper understanding of commercial A-CAES facilities at utility scale, corroborating performance and operational metrics, and supporting research in partnership with regional academic institutions.
Facility is fuel free, enabling the province to utilize surplus baseload electricity as a fuel source to provide cost-effective and valuable generating capacity for Ontario.
Supporting economic diversification in cleantech alongside significant construction expenditures and related jobs within the community.
