The total area of solar panels it would take to power the world

 

I wondered about this, so I did the math. Of course this doesn’t allow for panel spacing or power distribution etc. Still this puts solar power space requirements in perspective. This graphic is a reasonable presentation of solar space requirements all pushed together in one place.

Maximum output of area 350 sq km
350 kilometers on each side
× 3,280 feet per km
= 1,148,000 feet
x² 1,148,000 squared
= 1,317,904,000,000 square feet
÷ 15 square feet per solar pamel
= 87,860,266,666 solar panels
÷ 1,000,000,000
= 87 Billion solar panels
× 300 Watts per panel
= 26,100 billion watts or 26 trillion watts per hour of sunshine

Global usage of electricity
8,180 Watts per person per day
× 6,784 Million people
= 55,493,120 million watts or 55 terawatts
× 1,000,000
= 55,493,120,000,000 watts
55 trillion watts

The total area of solar panels it would take to power the world, Europe, and Germany
boingboing.net
(via Cliff Pickover’s Reality Carnival)

http://boingboing.net/2014/06/12/the-total-area-of-solar-panels.html

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