The American Wind Energy Association said in September that installations had reached 20,000 megawatts, double the capacity of 2006, with growth driven by generous tax incentives and state renewable energy quotas. (scientificamerican.com)
A spokesperson for the Canadian Wind Energy Association said the association is concerned about reports that are based on limited data that have the effect of boosting estimates. (windconcernsontario.ca)
In Europe, an offshore wind park costs nearly twice as much per megawatt as an onshore wind park, according to the European Wind Energy Association in Brussels. (scientificamerican.com)