1 greenhouse gas emissions distributed generation technologies and energy efficiency presentation to the victorian chapter australia ieee power engineering society 13 aug 2003 melbourne professor saifur rahman director alexandria research institute virginia tech objectives examine global trends quantify consider renewable alternatives explore demand side options discuss present sustainable solutions 2 world consumption for electricity by fuel type history 1996 2001 projections 2005 2025 0 50 100 150 200 250 1997 1999 2000 2010 2015 2020 renewables nuclear coal natural oil q u adrilli on btu 3 effect of incoming solar radiation reaches surface earth 90 infrared reflected s is absorbed in atmospheric trace gases these clouds re emit this back ground short wavelength escapes long held will be 33 c cooler without carbon dioxide co2 methane ch4 nitrous oxide n2o hydrofluorocarbons hfcs perfluorocarbons pfcs sulphur hexafluoride sf6 4 cycle 5 anthropogenic electric plants
