Green Numbers
Created and maintained by: Erik Johnsen
2010
Purpose: to give people ideas and get people thinking.
Send new ideas and I will incorporate them into the page: webmaster@scrollseek.com


Misc
120 quadrillion watts of sunlight constantly fall on Earth (source: National Geographic, September 2009, Plugging Into the Sun, pg29)
64MW can power 14,000 households (source: National Geographic, September 2009, Plugging Into the Sun, pg30)
Current total power needs (2009) of the humans on Earth is 16 terawatts, and is expected to be 20 terawatts by 2020 (source: National Geographic, September 2009, Plugging Into the Sun, pg34)


Total Renewable Energy Availability
(source: National Geographic, September 2009, Plugging Into the Sun, pg40)
EnergyAmounts
Solar Photovoltaic470,278 TWh
Concentrating Solar275,556 TWh
Wind (land-based)105,278 TWh
Ocean (tidal and wave)91,398 TWh
Hydro13,889 TWh
Geothermal12,500 TWh
Wind (offshore)6,111 TWh
Total975,010 TWh


Electricity Generated Worldwide in 2006
(source: National Geographic, September 2009, Plugging Into the Sun, pg40)
EnergyAmounts
Nonrenewable resources81.51%
Hydro16.41%
Other renewable1.37%
Wind0.68%
Solar0.2%
Total19,015 TWh


Ref
640 acres per square mile


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