Tyler Hamilton describing the Hydrostor technology, in his Clean Break column in the Toronto Star.
"At the heart of the system is a grid of ruggedized inflatable bags – called accumulators –anchored along the lakebed at least 80-meters deep. The accumulators are filled with compressed air during off-peak times, which is when the electricity used to compress the air is least expensive. ...
"Energy storage is considered a crucial component of a future smart grid that over time will see more wind, solar and other forms of intermittent renewable energy contributing to the power system. Storage helps to 'firm up' renewables, meaning we can store power when the wind blows or sun shines and dispatch it later when we need it, as we do with power plants that burn coal and natural gas."
Full article: Hamilton: Innovations in energy storage could play important role.
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