When you walk into a supermarket, it’s never silent. There are usually squeaking carts being pushed, children asking their parents for candy, and cashiers making small talk with the shoppers. However, even if you were to be the only person standing in the store, it still wouldn’t be quiet. You would be able to hear the buzz of the lights overhead and the humming given off by the vast amount of appliances used to keep food fresh. With aisle after aisle of electricity-hogging refrigerators and freezers, supermarkets seem like they would be demand-response program superstars. And yet, few grocers participate in utilities’ demand-response initiatives.