More power to 'em: This spring, Food Lion officials announced two major milestones in energy efficiency. The retailer became the first in the country to utilize a dual refrigeration system that requires 60% less refrigerant than a typical setup. Executives also announced that the number of stores certified by the Environmental Protection Agency's prestigious EnergyStar program had reached 725 — more than half of the approximately 1,300 EnergyStar-certified grocery stores in ...

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