Annual Report on U.S. Wind Power Installation, Cost, and Performance Trends: 2006
May 2007
Aside from Hydroelectricity, Wind Power is the most economically viable alternative energy technology on the market. The Department of Energy report is an overview of key wind development trends, pricing of wind power in the marketplace and installation costs.

Power Technologies Energy Data Book - August 2006
Prepared by the National Renewable Energy Laboratory (NREL), the Data Book is a comprehensive set of data about power technologies from diverse sources.