About Us UNS Energy Corporation, headquartered in Tucson, Arizona, is a subsidiary of Fortis Inc., the largest investor owned electric and gas distribution utility in Canada. Our public utility subsidiaries, Tucson Electric Power Company, UNS Electric, Inc. and UNS Gas,…
About Us UNS Energy Corporation, headquartered in Tucson, Arizona, is a subsidiary of Fortis Inc., the largest investor owned electric and gas distribution utility in Canada. Our public utility subsidiaries, Tucson Electric Power Company, UNS Electric, Inc. and UNS Gas,…