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==Methodology== | ==Methodology== | ||
Area required for solar panels, if | |||
* all energy came from solar photovoltaics, and | * all energy came from solar photovoltaics, and | ||
* everyone on Earth lived a "first-world" lifestyle. | * everyone on Earth lived a "first-world" lifestyle. | ||
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Divide this by the Earth's surface (510072000 km^2), and you get '''0.8%'''. | Divide this by the Earth's surface (510072000 km^2), and you get '''0.8%'''. | ||
==Would your city need [[solar farms]]?== | ==Would your city need [[solar farms]]?== | ||
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Simple heuristic: | Simple heuristic: | ||
* If your city's ''population density'' is greater than | * If your city's ''population density'' is greater than this number above, then yes. | ||
* Otherwise, all energy could be generated within the city (rooftops, probably). | * Otherwise, all energy could be generated within the city (rooftops, probably). | ||
But this is | But this is an oversimplification. Some things to consider: | ||
Some things to consider: | |||
* Every city defines its borders differently - this could bias the official stats of "population density". | * Every city defines its borders differently - this could bias the official stats of "population density". | ||
* If [[factories]] are in some industrial area outside the city, their solar panels could be there instead. | * If [[factories]] are in some industrial area outside the city, their solar panels could be there instead. | ||
