1. 2008 wind technologies market report. DOE/GO-102009-2868;Wiser,2009
2. National electric transmission congestion study;U.S. Department of Energy (DOE),2006
3. 20% wind energy by 2030: increasing wind energy's contribution to U.S. electricity supply;U.S. Department of Energy (DOE),2008
4. Transmission recommendations for high wind penetration;Jacobs,2007
5. Clean and Diversified Energy Advisory Committee (CDEAC) Transmission Task Force. Report of the transmission task force to the Western Governors Association; 2006, http://www.westgov.org/wga/initiatives/cdeac/TransmissionReport-final.pdf.