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Sulphur Springs serves more than 51,000 customers in Southern Arizona.

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TEP's 2016 plan is approved, but two controversial solar programs are stripped out for further consideration.

  • Arizona Daily Star

Two controversial solar proposals were cut from the plan and will instead be considered as part of TEP's rate case.

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  • By Stephanie Sklar Special to the Arizona Daily Star

Arizona already well-positioned for solar power 

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Opinions on Broadway widening, recall election funding, TEP rate increase.

  • David_Sanders

Carmine Tilghman, Tucson Electric Power Co. -- Credit: Tucson Electric Power Co.

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Massive wind turbines start spinning near Willcox.

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  • By Bob Burns Special to the Arizona Daily Star

Donations to TEP, Unisource distributed through Habitat for Humanity.

  • Photos by David Sanders / Tucson Electric Power

A historical Army cavalry honor guard helped dedicate the array, which will supply about one-quarter of the post’s energy.

TEP would own panels, participants would get 25-year freeze on rates.

Former Tucson City Councilman Rodney Glassman stopped by the Tucson Unified School District on Tuesday with a gift for TUSD kindergartners.

Construction began this week on a pioneering hybrid solar and fossil-fuel power generation project at Tucson Electric Power Co.’s H. Wilson Su…

  • Airman 1st Class Chris Massey

From left to right: Alex Hinojosa, North American Development Bank deputy managing director, Bob Powell, North America, SunEdison Solar Energy…

  • Arizona Daily Star

A Tucson-based solar energy sales and installation firm has gone public in a merger with an existing publicly traded company.

  • TERRY KETRON NEWS IMAGES

The 37-acre, 5-megawatt photovoltaic array will supply power to customers of UniSource Energy Services. The system, expected to provide enough…

  • Arizona Daily Star Arizona Daily Star

A new farm is going up along Interstate 19 near Rio Rico, but it's not raising cotton or even pecans.

  • PHOTOS BY MIKE CHRISTY / ARIZONA DAILY STAR

Caption unavailable

  • Mike Christy / Arizona Daily Sta

With Wednesday's abundant sunshine, it seemed only right for crews with Parsons Steel, including Paul McKenna, above left, and Nate McCollum, …

  • Arizona Daily Star Arizona Daily Star

Work is underway to install a massive solar-powered canopy over the main terminal parking lot at Tucson International Airport.

A year after its insolvent German parent was saved from possible oblivion by a buyout, Tucson-based solar-energy provider Solon Corp. is expan…