Climate Watch Shorts: Breakthroughs in Energy Storage

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How does renewable energy work when the sun isn't shining or the wind isn't blowing? Energy storage is a key piece of the renewables puzzle. Many look to chemical batteries to store power, but a Toronto-based company has a different idea - inflate bags under water to store the energy for use during days when renewables don't function well. Hydrostor president and CEO Curtis VanWalleghem takes us inside their demo plant.
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