Hydrostor is a Canadian company that develops systems of storing energy in the form of compressed air. It was founded in 2010 and is currently headquartered in Toronto, Ontario.
Hydrostor was founded in 2010. As of 2024, co-founder Curtis VanWalleghem was the company's CEO.
In 2024, Hydrostor built a compressed air storage facility in Goderich, Ontario. The unit repurposed a deserted salt cave near the Maitland River.
Hydrostor's method of storing energy include using electric air compressors to compress air and fit it into a container. In order to recover the energy, the compressed air is run through a turbine, generating power. The air compressors are powered by renewable energy.