Right now, wind power is in such demand that it will grow as fast as new turbines can be made, which is about 25 percent annually. In early 2008, the waiting list for many components stretched for more than a year, and though turbine makers were building new plants, demand was keeping pace, making it unlikely that they'll be able to cut their wait times before 2010.
For investors, wind offers a range of choices. (See Table 5.1.) The turbine makers are mostly giants like General Electric, Germany's Siemens, and Denmark's Vestas. Vestas is the biggest pure play turbine maker, with 2007 sales of around $8 billion and projected growth of about 25 percent in 2008. Wind farm operators
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