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:*Annual energy use by USA - 94 exajoules
:*Annual energy use by USA - 94 exajoules
*US energy consumption by sector - 40% electricity, 30% transportation - [http://en.wikipedia.org/wiki/Energy_in_the_United_States#mediaviewer/File:US_Energy_Consumption_by_Sector_2007.PNG]
*US energy consumption by sector - 40% electricity, 30% transportation - [http://en.wikipedia.org/wiki/Energy_in_the_United_States#mediaviewer/File:US_Energy_Consumption_by_Sector_2007.PNG]
:*Total USA energy use - 24 PWhr (petawatt hours (See [[Metric Prefixes]]))
:*Total USA energy use - 25 PWhr - [http://en.wikipedia.org/wiki/Energy_in_the_United_States] - (petawatt hours (See [[Metric Prefixes]]))  
*250GW of PV is installable on existing rooftops - Cosservative estimate (50% of residential rooftops) - [http://www.nrel.gov/docs/fy09osti/44073.pdf]
*250GW of PV is installable on existing rooftops - Cosservative estimate (50% of residential rooftops) - [http://www.nrel.gov/docs/fy09osti/44073.pdf]

Revision as of 22:15, 24 December 2014

  • Annual energy use by USA - 94 exajoules
  • US energy consumption by sector - 40% electricity, 30% transportation - [2]
  • 250GW of PV is installable on existing rooftops - Cosservative estimate (50% of residential rooftops) - [4]