Report: Warming threatens SW grid

TEP says it's already dealing with some impacts of extreme weather and trying to anticipate others. Above, apprentice lineman Florencio Ortega, left, worked with linemen John Hartnett, middle, and Danny Tellez as they moved a live wire to make way for a higher capacity line along Congress St…

Report: Warming threatens Southwest's power grid

The Southwest's power grid could become more vulnerable to climate change over the coming decades, says a new report led by University of Arizona researchers.

Tucson tech: Data pulsing away at Involta

Berne Hotchkiss of Rinderknecht Association cleans the floor of an Involta data center. Rinderknecht did reconstruction work on the 38,000-square-foot building, which was purchased from Aurora Optical Inc.

Tucson tech: Data pulsing away at Involta

Tammy Speth, who works in sales operations at Involta, sits in the conference room as she gets ready for Wednesday's grand opening.

Tucson tech: Data pulsing away at Involta

Like most facilities of its type, it doesn't look like much on the outside. Or on the inside either, for that matter.

Tucson Electric Power rate-hike request focus of hearing today

The Arizona Corporation Commission will hold a public-comment meeting today in Tucson on a pending settlement of Tucson Electric Power Co.'s pending rate case.

Toxic ash from Arizona power plants called a potential groundwater hazard

The water table beneath three Arizona coal ash landfills lies 300 to 900 feet deep. The ground is tightly packed clay. The sites lie miles from populated areas.

Track your power use, lower your Tucson Electric Power bill

Tucson Electric Power Co. residential customers can learn how to cut their power bills by joining a free program that allows customers to closely track their power usage.

Ina sewer plant to run on TEP power, not gas

The Pima County Board of Supervisors approved a new $1.4 million contract with Tucson Electric Power to run the Ina Road sewer plant.

TEP gives over $100,000 to nonprofits

Tucson Electric Power Co. awarded more than $100,000 in grants to nonprofit groups Friday as part of its 12th annual Grants That Make a Difference program.

New Rosemont flap centers on power-line capacity

The question of whether it's possible to reduce the juice of a power line for the Rosemont Mine has come up in heated, dueling letters to the Forest Service from Pima County's administrator and Rosemont Copper's CEO.

Energy-industry job training at PCC fueled by $1.8M grant

Tucson Electric Power Co. and Pima Community College will use a $1.8 million federal grant to expand energy industry job training programs in Arizona.

Sierra Club joins fight vs. coal use by TEP

The Sierra Club has joined an effort to get Tucson Electric Power Co. to quit burning coal at a Tucson-area power plant.

TEP crews repair storm damage

Tucson Electric Power crews worked Monday replacing 15 downed and broken poles along South Alvernon Way between Benson Highway and Valencia Road.

TEP crews repair storm damage

So far this year, TEP has had to replace 70 poles because of monsoon damage, including four others from Sunday's storm: three in the Prince-Campbell area and one near Fifth Street and Country Club Road.

TEP crews repair storm damage

Tucson Electric Power crews worked Monday replacing 15 downed and broken poles along South Alvernon Way between Benson Highway and Valencia Road.

Crews work on power, roads after Tucson storm

Several roads are closed and several customers are still without power today due to damage from Sunday’s storm.

TEP parent reports lower quarterly gains

UNS Energy Corp., parent of Tucson Electric Power Co., reported lower second-quarter earnings despite higher sales at TEP due to hotter weather.

TEP moves up 2 spots in customer satisfaction

Tucson Electric Power Co. improved its residential customer-satisfaction ratings in the latest J.D. Power and Associates rankings, even as satisfaction among utilities nationwide declined.