The American Wind Energy Association (AWEA), Washington, D.C., published its annual wind market report (available at www.awea.org). According to the report, the U.S. wind energy industry installed over 10,000 MW of new wind power generating capacity in 2009, the largest year in U.S. history, and enough to power the equivalent of 2.4 million homes or generate as much electricity as three large nuclear power plants. In industry rankings, GE Energy remained #1 in U.S. wind turbine sales; NextEra Energy Resources continued to lead in wind farm ownership; and Xcel Energy continued to lead utilities in wind power usage. At the same time, however, more companies are now active in each of these areas, showing that the wind energy market is diversifying as it expands. A related report, Wind Power Outlook 2009, offers additional insight into the growth of wind power in the United States.