underwater compressed air energy storage system Archives – The Green Optimistic green tech news, since 2008 Fri, 20 Nov 2015 18:10:27 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Hydrostor Launches Underwater Energy Storage System https://www.greenoptimistic.com/hydrostor-underwater-energy-storage/ https://www.greenoptimistic.com/hydrostor-underwater-energy-storage/#respond Fri, 20 Nov 2015 18:10:27 +0000 https://www.greenoptimistic.com/?p=57764 Toronto-based startup puts a twist on energy storage. Instead of expensive batteries, Hydrostor bets on giant underwater balloons. Technological advances in the field of energy storage have been quite slow, especially compared to what has happened in terms of improving energy generation technologies. Batteries have been accused to slow down the transition from fossil fuels […]

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