Friday, May 14, 2010

Wind Turbine Blade Damage


The Wind turbines in our area (DeKalb, Illinois) were only operational since December. The blades require a 300 foot crane to lift them…they weigh 122,000 pounds each. They are attached via the hub assembly in the middle and all 3 blades go up and are affixed to the nacelle at the hub all at once. There are a limited supply of 300 foot cranes in the US….the last one left here 2 weeks ago….It will take 6 months to get it back here and when it does the 3 trucks and tractor trailer rigs carrying it will once again tear up the roads…

These blades are notorious for breaking down….these are only 5 months up and already starting to break. With that kind of record, and the wasteful transportation, diesel, tear up of asphalt over and over again during the lifespan of these things, you gotta ask yourself ….how green can they be????? The turbines USE electricity from the grid to power them up and down, and brake them. They have gallons of oil and hydraulic fluid stored in the towers for lubricating the gears. During the winter the oil has to be heated , using electricity from the grid…NOT from the wind turbine itself. Then, the oil leaks all over down the tower…..lovely…and a permanent poison on the ground below…

No comments: