This Is How They Clean Those Gigantic Solar Energy Plants

The world's largest solar plants sure look amazing , but for those with inquisitive minds they raise one big question: how the hell do they keep all those panels clean? Nowadays, using robots like this!

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Source: http://feeds.gawker.com/~r/gizmodo/full/~3/iscBBqBa1YQ/this-is-how-they-clean-those-gigantic-solar-energy-plan-1555972956
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