windmills r weather dependent, unreliable, cover vast area of land, affect wind flow, decimate bats & bird pop, have short life spans (20 yrs max), require massive amts of raw material, create huge amt of waste (800 metric tons of concrete per smaller turbines/rebar foundations, rare earth minerals mostly mined in china, magnets & silicon blades up to 351 ft long (=32 STORIES!)) blades r not recyclable, create very little electricity @ high cost. in US alone 8,000 non recyclable blades a year r being removed, turbine disposal costs are as much as 400,000 a piece. that means $24 billion to dispose of the 60,000 turbines currently in use in the US.