http://www.pserc.org The Power Systems Engineering Research Center (PSERC) is a multi-university center collaborating with industry and government to provide research, education, and public policy analysis on challenges facing the electric power industry. en-us pserc@engr.wisc.edu http://www.pserc.org/rss/ PSERC Project Report T-29. http://www.pserc.org/rss/PSERC_Report_T-29_08-03_050708.pdf