(4-traders.com) Nov. 14--St. Olaf College's many dozens of buildings on its Northfield campus are now being powered entirely by wind energy, the liberal arts school and Xcel Energy announced Monday. By choosing Xcel's Windsource program for its energy needs starting at the beginning of this semester, St. Olaf becomes the utility's largest Windsource customer in...http://www.4-traders.com/XCEL-ENERGY-INC-13806/news/Xcel-Energy-St-Olaf-moves-to-100-percent-wind-power-23397975/