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UNS Energy Corporation

UNS Energy is a vertically integrated utility services holding company, headquartered in Tucson, Arizona, consisting primarily of three wholly owned subsidiaries: Tucson Electric Power, UNS Electric and UNS Gas. It is engaged through its subsidiaries in the regulated electric generation and energy delivery business, primarily in the State of Arizona, serving approximately 538,000 electricity customers and 165,000 natural gas customers. In 2021, the companies met a peak natural gas demand of 108 TJ and a peak electricity demand of 3,164 MW.

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2,028

employees

165,000

natural gas customers

538,000

electricity customers

  • 3,485 MW generating capacity
  • Regulated by the Arizona Corporation Commission
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Projects

Oso Grande Wind Farm 

TEP is making steady advances on its energy transition. Its 250-MW Oso Grande wind project will generate enough power each year to serve the annual electric needs of nearly 100,000 homes. 

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Community

UNS Energy Volunteerism Option 1

A culture of community investment

Tucson Electric Power and UniSource are dedicated to improving the quality of life in the communities we serve, beyond providing safe, reliable power. Together with friends and family, 182 employees assisted 314 local agencies and provided nearly 7,200 hours of volunteer service in 2020. 

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