Hydrostor is a long-duration energy storage solution provider. The transition to 100 per cent renewable resources cannot happen without long-duration energy storage.
By enabling energy to be stored for long periods of time, Hydrostor is accelerating the integration of renewable generation into the grid and reducing the reliance on fossil generation. Long-duration energy storage ‘weather proofs’ the grid and ensures consumers receive reliable power from renewable sources, even when the wind doesn’t blow and the sun doesn’t shine.
Hydrostor’s patented Advanced-Compressed Air Energy Storage (A-CAES) solution works by converting excess grid energy into compressed air. This compressed air is then funnelled into underground caverns displacing water to create storage capacity. This compressed air can then be used whenever electricity is needed.
Hydrostor develops long duration energy storage systems worldwide, and already has a pipeline of projects for providing capacity of over 200 MW and for six or more hours. Hydrostor has a commercial facility operating in Goderich, Ontario, which is the first energy storage project to provide Operating Reserves in Ontario.
By enabling energy to be stored for long periods of time, Hydrostor is accelerating the integration of renewable generation into the grid and reducing the reliance on fossil generation. Long-duration energy storage ‘weather proofs’ the grid and ensures consumers receive reliable power from renewable sources, even when the wind doesn’t blow and the sun doesn’t shine.
Hydrostor’s patented Advanced-Compressed Air Energy Storage (A-CAES) solution works by converting excess grid energy into compressed air. This compressed air is then funnelled into underground caverns displacing water to create storage capacity. This compressed air can then be used whenever electricity is needed.
Hydrostor develops long duration energy storage systems worldwide, and already has a pipeline of projects for providing capacity of over 200 MW and for six or more hours. Hydrostor has a commercial facility operating in Goderich, Ontario, which is the first energy storage project to provide Operating Reserves in Ontario.
Location: Canada
Employees: 51-200
Total raised: $530M
Founded date: 2010
Investors 4
| Date | Name | Website |
| - | Unreasonab... | unreasonab... |
| - | Amplify Ca... | amplifycap... |
| 26.05.2025 | Something ... | sgv.ca |
| 17.07.2021 | ArcTern Ve... | arcternven... |
Funding Rounds 4
| Date | Series | Amount | Investors |
| 23.09.2025 | - | $55M | Export Dev... |
| 14.02.2025 | - | $200M | - |
| 19.04.2022 | - | $25M | - |
| 10.01.2022 | - | $250M | - |
Mentions in press and media 31
| Date | Title | Description |
| 28.01.2026 | Hydrostor and Baker Hughes Deepen Strategic Collaboration to Advance Reliable, Resilient, and Sustainable Power Systems | Hydrostor, a leading global long duration energy storage (LDES) developer and operator, and Baker Hughes, an energy technology company, announced Wednesday a strategic technology solutions and equity agreement. Baker Hughes will deepen its ... |
| 24.09.2025 | Hydrostor Secures $55M: Long-Duration Storage Powers Grid Evolution | Hydrostor, a leader in long-duration energy storage (LDES), secured $55 million from Export Development Canada. This crucial funding propels the 200-megawatt Silver City A-CAES project in Broken Hill, Australia. Hydrostor's advanced compres... |
| 23.09.2025 | Hydrostor: $55 Million Raised For Long-Storage Energy Storage | Hydrostor, a company specializing in long-duration energy storage, is making significant strides in the field of renewable energy with its advanced compressed air energy storage (A-CAES) projects. Recently, the company secured $55 million i... |
| 18.09.2025 | Hydrostor Raises US$55M in Funding | Hydrostor, a Toronto, Canada-based long-duration energy storage (LDES) developer and operator of advanced compressed air energy storage (A-CAES), raised USE$55M in funding. The round was led by Export Development Canada (“EDC”). The company... |
| 15.02.2025 | Hydrostor: $200 Million Raised For Long-Duration Energy Storage Platform | Hydrostor, a global long-duration energy storage (LDES) developer and operator, has secured a $200 million investment from the Canada Growth Fund (CGF), Goldman Sachs Alternatives, and Canada Pension Plan Investment Board (CPP Investments).... |
| 14.02.2025 | The Rise of Alternative Investments: A New Era in Finance | In the world of finance, change is the only constant. Traditional investment avenues are being overshadowed by innovative alternatives. Two recent developments highlight this shift: Antares Capital's launch of a $1.4 billion private credit ... |
| 14.02.2025 | Hydrostor Raises $200M in Funding | Hydrostor, a Toronto, Canada-based global long-duration energy storage (LDES) developer and operator, raised $200M in funding. Backers included Canada Growth Fund, Goldman Sachs Alternatives, and Canada Pension Plan Investment Board. The tr... |
| 11.01.2025 | Hydrostor: Conditional Commitment For Up To $1.76 Billion Loan Guarantee From U.S. Department of Energy | Hydrostor, a long-duration energy storage developer and operator, announced it has reached a conditional commitment for a loan guarantee of up to $1.76 billion with the U.S. Department of Energy’s (DOE) Clean Energy Financing Program (inclu... |
| 25.02.2022 | Hydrostor Secures US$250 Million Investment from Goldman Sachs Asset Management to Accelerate Growth | Toronto, Ontario & New York, NY, Jan. 10, 2022 (GLOBE NEWSWIRE) -- Hydrostor Inc. (“Hydrostor”), a leading long-duration energy storage solution provider, today announced a preferred equity financing commitment of US$250 million from th... |
| 12.01.2022 | Canoe Financial: key position Hydrostor Inc. secures US$250 million investment from Goldman Sachs Asset Management | CALGARY, Alberta, Jan. 11, 2022 (GLOBE NEWSWIRE) -- Canoe Financial is excited to share a recent announcement from Hydrostor Inc., a key holding in the Canoe Energy Fund lineup. Hydrostor, a leading developer of utility-scale alternative en... |
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