Whole Foods Market, based out of Austin, Texas, has been contributing to the proliferation of wind power projects and wind farms by buying renewable energy credits over the last few years. In an attempt to cut their overall energy consumption by 25% per square foot by 2015, they are now also looking to make their stores more energy efficient.

With improved design, the newest Whole Foods stores are significantly more energy efficient, with a new Colorado store using about 35% less energy than two older stores in its vicinity and a Santa Barbara store in California using 45% less energy than a similar store.

Older stores are also seeing improvements Existing with updated smarter refrigeration systems, low-energy lighting and control systems and advanced heating and air conditioning.