Environmentalists continue to push for a coal-free plant in Tucson.
It may be an understatement to say that a lot has happened since Paul Bonavia became chief executive of UNS Energy Corp. and its main subsidiary, Tucson Electric Power Co., in 2009.
PHOENIX — Arizona manufacturers and smelters are in line for a big tax break not being offered to other companies and individuals.
Davis-Monthan Air Force Base dedicated a 16.4-megawatt photovoltaic solar array on Thursday that is the largest of its kind on any Department of Defense installation.
State utility regulators are considering plans to waive — or possibly eliminate — a mandate that Tucson Electric Power Co. and other utilities get a certain amount of renewable energy from rooftop solar installations.
The ongoing battle to stop the SunZia Southwest Transmission Project from being routed through either the San Pedro Valley or between the Aravaipa and Galiuro wildernesses has reached a critical point.
In the early 1990s, my company was exploring locations for a strategic expansion into electro-optic system development. The criteria included access to a deep pool of talent, a robust ecosystem in electro-optic technologies and a desirable place to live that would attract and retain the best…
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.
State utility regulators today approved new fees for Arizona Public Service Co. customers that install grid-tied solar energy systems, in a decision that could ultimately affect solar customers in Tucson.
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.
The Tucson Unified School District is bringing solar energy to 43 campuses, with a goal of reducing its carbon footprint while potentially saving more than $11 million over the next 20 years.
A German energy giant dedicated its first solar-energy installations in the U.S. on Monday under sunny skies in Tucson.
PHOENIX - Two closed power plants near the small Eastern Arizona town of Snowflake have been purchased by a company controlled by Arizona state Sen. Bob Worsley, sending an economic lifeline to the town hurt by the job losses associated with the shutdowns.
Tucson Electric Power Co. has won state approval to buy power from a planned wind and solar energy farm near Willcox that would be the first utility-scale project of its kind in Southern Arizona.
A year after its insolvent German parent was saved from possible oblivion by a buyout, Tucson-based solar-energy provider Solon Corp. is expanding into new markets outside of Arizona.
Technicians with Tucson-based GeoInnovation installed photovoltaic panels at the Biosphere 2 Conference Center in October 2011. The panels were installed as a pilot project to test Solon Corp.'s SOLquick system for easy mounting on flat roofs.
The Prairie Fire Solar Plant is near East Valencia and East Old Vail roads. Its construction took just 10 weeks and created the equivalent of 75 full-time local jobs. The overall project cost is about $16 million.
Tucson-based solar energy provider Solon Corp. has completed construction of a 5-megawatt solar plant on the southeast side for Tucson Electric Power Co.