APS joins gas pipeline expansion, walks back clean energy promises

• Arizona Public Service to join other utilities in a natural gas pipeline expansion project • Its parent company, Pinnacle West, will adjust its promise to be carbon-free by 2050 • Opponents argue out-of-state gas creates volatility, and could be bad for consumers

Arizona Public Service announced it will join in the expansion of a natural gas pipeline while also announcing it will roll back several clean energy targets.

APS, Salt River Project, Tucson Electric Power, UniSource Energy and the City of Mesa announced Aug. 6 that they will join Transwestern Pipeline’s southwest expansion project. The pipeline is expected to bring natural gas from Texas into Arizona by late 2029.

Arizona Corporation Commission Chairman Kevin Thompson, Arizona Commerce Authority CEO Sandra Watson and Ari