Big companies are finally beginning to see the light. Over the past two years, the top 25 corporate solar users in America have more than doubled their capacity, according to a new report by the Solar Energy Industries Association. Cumulatively, these companies produced enough electricity last year to power more than 115,000 homes.
Leading the pack by a significant margin: Wal-Mart Stores (WMT). The retail giant produced 105 megawatts of power last year at 254 locations in the U.S. Eight of the top 13 companies identified in the solar-power study are big-box retailers, including Costco (COST), Macy’s (M), Kohl’s (KSS), and Bed Bath & Beyond (BBBY).