Goderich Energy Storage Facility

World’s First Commercial A-CAES Facility & Energy Storage North America (ESNA) 2019 Innovation Award Recipient


The Goderich A-CAES Facility, located in Goderich, Ontario, Canada, is the world’s first commercially contracted Advanced-CAES facility. The plant is contracted by Ontario’s Independent Electricity System Operator (IESO) for peaking capacity, ancillary services, and full participation in the merchant energy market to support grid reliability. Entirely fuel-free, the plant produces zero greenhouse gas emissions, and helps enable a cleaner, more affordable, and more flexible electricity grid.

About the Facility

  • Size: 1.75 MW (discharge), 2.2 MW (charge) / more than 10 MWh (contracted to 7 MWh)
  • Owner:  Hydrostor, contracted by Ontario’s Independent Electricity System Operator (IESO)
  • Location: Goderich, Ontario, Canada
  • Application: Commercial reference facility, peaking capacity
  • In-Service: 2019

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.


Validated Performance Characteristics

 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.

Electricity Grid

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.