Sustaining Future

Thursday, June 07, 2007

How Much Land to Power The Whole World with Solar?


"Solar power systems installed in the areas defined by the dark disks could provide a little more than the world's current total primary energy demand (assuming a conversion efficiency of 8%).

From what I see, it is NOT that much area needed.
See this table from the original article:
Location / Desert Desert Size /
km2 [5]
Irradiation /
W m-2
Area required /
km2
Africa, Sahara 9,064,960 260144,231
Australia, Great Sandy 388,500 265 141,509
China, Takla Makan 271,950 210 178,571
Middle-East, Arabian 2,589,910 270 138,889
South America, Atacama 139,860 275 136,364
U.S.A., Great Basin 492,100 220 170,455

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