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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 2015 the utilities met a peak daytime natural gas demand of 109 TJ and a peak electricity demand of 3,267 MW.

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2,015

employees

152,000

natural gas customers

511,000

electricity customers

  • 2,799 MW generating capacity including 54 MW renewable resources
  • Total renewable energy portfolio, including resources secured through purchase agreements: 398 MW
  • Regulated by Arizona Corporation Commission
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Projects

Resource planning for renewable energy technologies

Tucson Electric Power is developing a pair of innovative energy storage systems in 2016 that will strengthen service reliability and support the expansion of solar and other renewable energy technologies.

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Community

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Tucson Electric Power and UniSource making a difference

Tucson Electric Power and UniSource Energy Services will award $330,000 in 2016 to help local nonprofit groups improve education, protect our environment and expand limited-income assistance through their new Community Impact Grants program.

The expanded grants program replaces the companies' longstanding Grants that Make a Difference program, which provided nearly $150,000 in 2015 to worthy causes across Arizona.

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