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UNS Energy Corporation
In December 2013, Fortis Inc. announced an agreement to acquire the common shares of UNS Energy for approximately US$4.3 billion. The acquisition was finalized in August 2014. UNS Energy is the Tucson, Arizona-based parent company of Tucson Electric Power (TEP) and UniSource Energy Services (UES). In 2016 the utilities met a peak daytime natural gas demand of 103 TJ and a peak electricity demand of 3,386 MW.

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2,023

employees

154,000

natural gas customers

515,000

electricity customers

  • 2,994 MW generating capacity including 54 MW renewable resources
  • Total renewable energy portfolio, including resources secured through purchase agreements: 614 MW
  • Regulated by Arizona Corporation Commission
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Projects

Powering homes with solar for a historically low price

Tucson Electric Power will buy solar energy at a historically low price from a new system large enough to power 21,000 homes. The new 100-MW solar array and an accompanying 30-MW energy storage system are expected to be in service by the end of 2019.

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Community

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Celebrating 125 years of community service

Tucson Electric Power is celebrating 125 years of service to the Tucson community with special volunteer projects, donation drives and events. It’s our way of saying thanks to our customers for a long, rich history in southern Arizona. Tucson Electric Power and UniSource Energy Services focus philanthropic giving on three areas: education, environmental conservation and community assistance, which includes helping at-risk and limited-income communities.

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