The Department of Energy released a report August 14 examining the impact of the wind energy industry. The report, 2011 Wind Technologies Market Report, finds that wind energy accounted for 32 percent of all new domestic electric capacity last year, for a total of 6,800 MW of new wind capacity, and for $14 billion in new investment. The study also demonstrates that 70 percent of the equipment installed at American wind farms last year was domestically manufactured, up from 35 percent in 2005. The agency also forecasted a lower rate of wind energy growth in 2013 because of the possible expiration of federal tax incentives such as the Production Tax Credit.