A homeowner replaces his lights with fluorescent bulbs and buys energy-efficient appliances. The results are noticeably impressive on his electric bill. Magnify those efforts at Carnegie Mellon, which purchases 75 percent of its energy from renewable sources—that's the equivalent of 8,000 homes. CMU's nearly 87 million kilowatt-hours of annual green power purchases have placed the university on the U.S. Environmental Protection Agency's National Top 50 List of green power purchasers, in addition to its Top 20 College and University list.
For more information:
EPA's Top 50 Purchasers