UNS Energy Corp., the parent of Tucson Electric Power Co., has agreed to be acquired by Canada-based utility Fortis Inc. in a deal worth $4.3 billion, the companies said Wednesday.
The University of Arizona Tech Park will add a new solar-farm design to its solar-technology demonstration area next year, with the addition of a one-megawatt concentrating photovoltaic array.
State utility regulators approved new fees for Arizona Public Service Co. customers with solar-energy systems, in a decision that could ultimately affect solar customers in Tucson.
Tucson Electric Power Co. and radio station 94.9 KMXZ MIX-FM are trying to fill a moving van with food today as part of the ninth annual “Thanksgiving on the Mayflower” event for the Community Food Bank of Southern Arizona.
PHOENIX — Customer Dru Bacon compared Arizona Public Service Co.’s approach to household solar to Eastman Kodak Co.’s inability to recognize the future of digital photography.
Tucson Electric Power Co. parent UNS Energy Corp. beat analysts’ third-quarter earnings expectations thanks in part to a recent rate increase, but the company handily missed Wall Street’s revenue forecast.
Tucson Electric Power Co. parent UNS Energy Corp. beat analysts' third-quarter earnings expectations thanks in part to a recent rate increase, but the company handily missed Wall Street's revenue forecast.
A German energy giant dedicated its first solar-energy installations in the U.S. on Monday under sunny skies in Tucson.
Tucson Electric Power Co. is swapping a chunk of its coal-fired power generation for cleaner-burning natural gas.
An east-side mobile home retirement community has switched on one of the Tucson area’s biggest solar-energy carport installations — and it shades the shuffleboard courts as well.
Officials of New Mexico and the Navajo Nation have weighed in to oppose a move by Arizona regulators to open the state’s retail electric markets to competition, contending it would likely result in the closure of the Four Corners power plant and decimate the area’s economy.
A monsoon storm pounded Tucson's northwest side, flooding a Safeway supermarket after two storm pipes on the roof burst.
A thunderstorm swept through the Tucson area Tuesday afternoon dropping up to 2 inches of rain on the city's southwest side and on Mount Lemmon.
A man trying to change a breaker in an electrical panel suffered serious burns Wednesday.
State regulators today approved a rate increase for Tucson Electric Power Co. that will boost the average residential bill by about $3 to $4 per month — while putting off some new energy-efficiency programs that have been awaiting approval for more than two years.
The Arizona Corporation Commission is scheduled to consider Tucson Electric Power Co.'s pending rate increase request at its open meeting today in Phoenix.
Tucson-based UNS Energy Corp. posted higher first-quarter earnings today as cold weather boosted energy demand.
Like most facilities of its type, it doesn't look like much on the outside. Or on the inside either, for that matter.
A dump truck hauling dirt at a construction site near West Grant and North Oracle roads knocked down two power poles Thursday morning, authorities said.
Tucson-based UNS Energy Corp. today reported lower fourth-quarter profits but beat analysts’ estimates for income and revenues.