HALLE, GERMANY – MARCH 16: Workers 100m above the ground install the turbine machinery into a 2.3 MW wind turbine from German wind turbine manufacturer Nordex at a wind farm at Wimmelburg March 16, 2007 near Halle, in eastern Germany. Germany has promoted wind energy aggressively in recent years and German wind turbine companies are experiencing a world-wide boom in demand. The 2.3 MW turbine produces enough electricity to power 1,800 households. (Photo by Sean Gallup/Getty Images)