Sears, Roebuck and Co. selected Enova Energy as a partner in a "regional energy alliance." Enova Energy, an Enova Corp. subsidiary, will design and install a technical learning center at Sears' Tucson, AZ department store. The company also will provide energy services at other Sears stores in several western states. The learning center will be one of a nationwide system of energy-efficient stores used as models and for the testing and training of facility operations equipment. All of the store's services will be aimed at improving energy efficiency and reducing costs.