June 4, 2011 |
Wal-Mart wants to extract more green out of greening. The retail giant's supercenter in Lancaster recently installed fuel cells that provide half of the electricity to the 222,876-square-foot store. It has punched holes in the roof for skylights that provide 70% of the store's lighting needs during the day. To help keep the scorching sun at bay and cool the building naturally, it has painted the roof white. The store has been recognized for being eco-friendly, but Wal-Mart Stores Inc. officials say they're actually happier with how the upgrades have improved the bottom line.