Solar power got another much-needed boost recently when Wal-Mart announced that it would plan on adding solar equipment to a number of its U.S. stores. The company has asked potential solar equipment suppliers to bid on initial projects and to include costs for possible build-out and expansion over the next five years. If the plans are carried out, it could make Wal-Mart America's largest user of solar power . The Financial Times reports that a move to solar and other forms of renewable energy is taking place due to rising electricity costs and a desire to bolster corporate images: The new US enthusiasm for solar power reflects both the impact of rising electricity bills, and concerns over reputational or brand identity issues. Wal-Mart, for instance, says it wants its stores to be entirely powered by renewable energy, and has committed itself to reducing the greenhouse gas output from its existing global network by a fifth by 2012, while Staples has said it intends to get its emis
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