In 2020, researchers tested a self-moistening hydrogel mat under solar panels; it cooled them by at least – The Economic Times

New research introduces a cooling gel for solar panels. This gel absorbs moisture at night and releases it as vapor during the day. The cooling effect significantly boosts electricity output and panel longevity. This innovation promises to reduce solar electricity production costs. The technology offers a low-maintenance solution for hotter climates.
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This hydrogel coating works like sweat on skin: it releases water vapor to pull heat away from the panel underneath it (representative image). Image Credits: ChatGPT

As solar farms expand into hotter climates, low-maintenance cooling solutions could help panels hold on to more of their output. Image Credits: Pexels

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