Big-box retailers are increasingly adding solar panels and wind turbines to sprawling stores to offset rising electricity costs and groom a "green" image.
Last week, Wal-Mart Stores announced it will add wind power to 360 Texas outlets. The company aims to power all stores with renewables eventually. So far, the retailer counting the largest amount of photovoltaics is Wisconsin-based Kohl's. Whole Foods is likely the first big name to add solar panels, starting in 2002 in Berkeley, Calif.