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To Store the Wind and Sun, Energy Startups Look to Gravity

WSJ Original article ›
LyrArc Article Gist
A problem the renewable energy industry faces is how to store energy so that it can meet demand when it is cloudy or calm, conditions when solar panels and wind energy generators are not working. A company in Switzerland is working on a novel solution. It uses cranes to lift 35 ton bricks that are stacked to form a 400 foot tower. When energy is needed the kinetic energy from bricks coming down powers generators. 



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