Guardian: The American Wind Energy Association released its annual report on the industry Thursday, highlighting impressive growth of wind installations and manufacturing in 2009 despite the economic slowdown. More than 10,000 megawatts of wind power was installed across the United States last year, raising the total installed capacity to over 35,000 MW — about 1.8 percent of all electricity generated in the country. Manufacturing of wind turbines is also picking up steam, with the industry …