Toronto firm launches project that uses giant underwater ‘balloons’ to store energy

TORONTO—Three kilometres off the south shore of Toronto Island, underneath 55 metres of water, a series of balloon-like structures chock-full of compressed air are pumping electricity into Toronto’s energy grid.

In the frigid depths of Lake Ontario, Toronto cleantech startup, Hydrostor Inc., and its partner, Toronto Hydro, have launched the world’s first underwater compressed air energy storage system.

“This event marks an important milestone for our company and we’re thrilled to have the world’s first underwater compressed air energy storage system in service,” the company’s CEO, Curtis VanWalleghem, said. “We’re now focused on commercializing this technology globally to bring our green energy storage solution to countries around the world.”

Read more at canadianmanufacturing.com

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