Our approach is as simple as it is powerful: When excess power is available on the grid, we run it through turbines, convert it to compressed air and pump in into large underground caverns. Once in the cavern it is stored as potential energy. When the grid needs that power back, we simply reverse the process. Innovations like heat capture and hydrostatic pressure improve our efficiency and allow us to site projects where they’re needed.
500 MW | 8+ hours
$500M+ USD in community benefits
Kern County, CA
200 MW | 8+ hours
$550 million (AUD) in regional economic impact
Broken Hill, NSW
500 MW | 8+ hours
$1.1 billion (CAD) in regional economic impact
Lennox & Addington County, ON
These advanced projects represent small portion of our 7-gigawatt pipeline, with projects currently in development across the United States, Canada, and Australia.
Our technology offers distinct advantages over alternative energy storage options, providing large-scale solutions for some of the world’s biggest energy challenges.
Matches the reliability of thermal power plants, but with an emissions-free process.
Low installed costs per kWh over a 50+ year lifespan.
Scalable system is designed to match grid requirements. Incremental capacity and duration increases can be added in the future with limited downtime and low marginal cost.
Rotational inertia from spinning motors keeps the grid stable. Other ancillary services include voltage support, spinning reserve, black start, and frequency response.
Purpose-built hard-rock caverns can be built where the grid needs support most, unlike traditional CAES or pumped hydro.
Creates high-quality jobs for skilled trades, enforcing regional infrastructure and boosting local industry.
Hydrostor is a leading energy storage, technology, and infrastructure company dedicated to developing utility-scale long duration energy storage solutions. Our global team of clean energy experts is building the future of reliable, secure, carbon-free energy.
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
Tenancy 8/6 MAB Eastern Prom
Tonsley SA 5042
Australia