Arizona AG challenges TEP’s 14% rate hike, citing affordability and transparency concerns.

Arizona Attorney General Kris Mayes is challenging Tucson Electric Power’s proposed 14% rate hike, calling it excessive and harmful amid rising living costs. She argues the increase, which could raise average bills by $16, threatens affordability and public health, especially in extreme heat, and criticized TEP for lack of transparency. Mayes also opposes a rate agreement with Project Blue, a data center, claiming it could bypass state oversight, though TEP denies this, stating all rates follow approved tariffs. The Arizona Corporation Commission will hold public hearings in March and April before deciding, with a possible implementation as early as September 2026.