Monday, May 16, 2005

Giant wind turbine foundations

From "Wind farms remain pricy propositions," The Citizens Voice (Wilkes-Barre, Pa.), May 15:
The Waymart Wind Farm, located in Clinton and Canaan townships in Wayne County [Pa.], contains 43 1.5-megawatt turbines ...

The blades are shipped from Brazil and the gearbox for each turbine is brought over on barges from Denmark.

Each turbine weighs 190 tons and requires a sturdy foundation to keep the structure stable.

At the Waymart site, the turbines rest on concrete foundations extending 30 to 40 feet into the bedrock. The foundations are reinforced by 14-foot and 12-foot diameter pipes, and the turbine is fastened to a bolt carriage that runs through the entire foundation.
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