Industry Brief

The Wallow wildfire in eastern Arizona’s White Mountains on Wednesday was threatening energy facilities operated by UniSource Energy Corp.’s Tucson Electric Power (TEP) utility, but a utility spokesperson told NGI there was no immediate danger and outages so far had been avoided. Expanding at four to five miles daily, the fire has cut across 311,000 acres of dense pine forests running near TEP’s north-south transmission power lines and coal-fired generation complex at Springerville, AZ. Under threat are the two power lines that carry 1,100 MW of power from Springerville and San Juan Generating Stations into the greater Tucson area. If the fire came close enough to the power lines to shut them down, TEP can bring on additional local generation and coordinate with other utilities to avoid outages, a spokesperson said.

June 9, 2011

Arizona OKs Reduced Gas Rate Hike for UniSource Unit

The Arizona Corporation Commission (ACC) Friday pared down a natural gas utility rate increase for a unit of Tucson-based UniSource Energy Corp., approving a $5 million increase for its UNS Gas utility, which serves 146,000 customers. The vote was 4-1.

November 12, 2007

Arizona Approves 3.6% Gas Utility Rate Decrease for UNS Gas

The Arizona Corporation Commission (ACC) granted Tucson-based UniSource Energy Corp.’s UNS Gas a 3.6% rate decrease Wednesday for its customers in the northern half of the state. A 4-cent/therm credit will be available to customers beginning Oct. 1 and running through April 30 next year.

September 21, 2007