Besides being butt ugly, a horrible blot on the landscape and extremely expensive to install, here's some interesting data : Now the typical build specifications of a standard 1,500 kilowatt wind turbine are as follows: The rotor assembly for one turbine – that’s the blades and rotor – weighs over 22,000 Kg and the nacelle, which contains the generator components, weighs over 52,000 Kg. All this sits on a turbine tower constructed from 80,000 Kg of rolled steel plate and in turn all this (blades, rotor, nacelle and tower) stands on a concrete base constructed from 26,000 Kg of reinforcing steel which also contains over 190 cubic metres of concrete (that’s over 190,000 litres of concrete). Each and every wind turbine has a magnet made of a metal called neodymium. There are 2,500 Kg of it in each turbine. Therefore, 666,665 wind turbines would need 53.3 billion Kg of rolled steel plate for the tower plus a further 17.3 billion Kg of reinforced steel and 126.6 billion litres of concrete (equivalent to approximately 50,665 Olympic pools) to make the reinforced concrete base. Each turbine blade is made of glass fibre reinforced plastics, (GRP), i.e. glass fibre reinforced polyester or epoxy and on average each turbine blade weighs around 7,000 Kg each. Given each wind turbine has three blades then 13.99 billion Kg of GRP is needed. 1.6 billion Kg of the rare earth mineral (does enough of this stuff exist?) neodymium would also be needed. Check out this article explaining how neodymium is manufactured : http://www.dailymail.co.uk/home/mos...er-experiment-Pollution-disastrous-scale.html To create a 1,000 Kg of pig iron, you start with 1,800 Kg of iron ore, 900 Kg of coking coal 450 Kg of limestone. The blast furnace consumes 4,500 Kg of air. The temperature at the core of the blast furnace reaches nearly 1,600 degrees C (about 3,000 degrees F). The pig iron is then transferred to the basic oxygen furnace to make steel. An amazing 127.1 billion Kg or 127 million tons of iron ore would be needed to be mined alone to supply the steel required to manufacture these wind turbines. 63.5 billion Kg of coking coal and 31.77 billion Kg of limestone would also need to be mined. SAVING THE PLANET ?????? costing us a small fortune and killing Chinese peasants.