Keywords: Available Energy-4.png Available Energy-4 svg en Useful energy exergy in surface incident solar radiation wind hydro and geothermalhttp //gcep stanford edu/research/exergycharts html compared to global consumption - Energy Information Administration in 2004 447 605 Quadrillion btu/yr 14 965 x 10 12 Watts http //www eia doe gov/pub/international/iealf/table18 xls self-made based on the work of Frank van Mierlo Delphi234 2008-08-28 Available Energy-4 svg Image Available_Energy-3 png Solar energy statistics Geothermal energy statistics Wind energy statistics Hydropower statistics |