How big is a wind turbine? Industrial wind turbines are a lot bigger than ones you might see in a schoolyard or behind someone’s house. The widely used GE 1.5-megawatt model, for example, consists of 116-ft blades atop a 212-ft tower for a total height of 328 feet. The blades sweep a vertical airspace of just under an acre. The 1.8-megawatt Vestas V90 from Denmark has 148-ft blades (sweeping more than 1.5 acres) on a 262-ft tower, totaling 410 feet. Another model being seen more in the U.S. is the 2-megawatt Gamesa G87 from Spain, with 143-ft blades (just under 1.5 acres) on a 256-ft tower, totaling 399 feet. Many existing models and new ones being introduced reach well over 400 feet high. See the specs for several models at AWEO.org.
Posted on: Sun, 12 Oct 2014 07:54:49 +0000
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