Could we power the world with so­lar en­ergy alone?

How It Works - - BRAIN DUMP - Chelsea Casey

More en­ergy from the Sun hits the world in a sin­gle hour than hu­man­ity uses in an en­tire year, so yes, we could the­o­ret­i­cally power the whole world with so­lar en­ergy alone. How­ever, we’d first need to make some changes and build new in­fras­truc­ture. We’d need bet­ter bat­ter­ies to store power, so so­lar could be used in ve­hi­cles and when the Sun wasn’t shin­ing. New elec­tric­ity lines would also be needed to carry power from sunny places to dark places. Ex­perts es­ti­mate that we’d need be­tween 100,000 and 500,000 square kilo­me­tres of so­lar pan­els (the lat­ter be­ing an area as big as Spain) to power the Earth.

Pow­er­ing the world with so­lar would need up to 500,000km2 of so­lar pan­els

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