Innovation

Energy from the sun, stored in a liquid - and released on demand

The cost of installing solar panels has fallen dramatically but storing the energy has been problematic. Image: REUTERS/NASA/SDO/Handout

Catarina Walsh

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Image: Energy and Environmental Science
A view of solar panels, set up on what will be the biggest integrated solar panel roof of the world, in a farm in Weinbourg, Eastern France February 12, 2009. Bright winter sun dissolves a blanket of snow on barn roofs to reveal a bold new sideline for farmer Jean-Luc Westphal: besides producing eggs and grains, he is to generate solar power for thousands of homes. Picture taken February 12.         To match feature FRANCE-FARMER/SOLAR              REUTERS/Vincent Kessler  (FRANCE) - RTXC0A6
Image: REUTERS/Vincent Kessler
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InnovationEnergy TransitionFourth Industrial RevolutionFuture of the Environment
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