To learn more about alternative energy, please click on the links below:  
  http://www.barackobama.com/pdf/factsheet_energy_speech_080308.pdf  
  http://www.seia.org/  
  http://www.eia.doe.gov/fuelrenewable.html  
 

http://www.dsireusa.org/index.cfm?EE=0&RE=1

 
  http://en.wikipedia.org/wiki/Photovoltaics