SUPERVALU opened its newest Cub Foods store Oct. 31 in St. Paul's Phalen neighborhood. The store is the first in the U.S. to earn Gold-level certification from the Environmental Protection Agency for its new refrigeration technology, which uses 65 percent less refrigeration than the industry standard. LED lights in refrigerated cases use 35 percent less energy and are motion-activated, so they turn off when no one is in the aisle. Polished concrete floors eliminate the need for wax and solvents, saving money and the environment. (Photo: Kim Taylor)