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18 March 2017. A coal-mine that powered German industry for almost half a century will get a new lease on life when it’s turned into a giant battery that stores excess solar and wind energy. The state of North-Rhine Westphalia is set to turn its Prosper-Haniel hard coal mine into a 200 megawatt pumped-storage hydroelectric reservoir, which acts like a battery and will have enough capacity to power more than 400,000 homes.

BLOOMBERG

https://www.bloomberg.com/news/articles/2017-03-17/german-coal-mine-to-be-reborn-as-giant-pumped-hydropower-battery

At industryabout.com:

Germany Industrial Map

 

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