Executive Summary & Citability Passage
EIA / NOAA / Municipal Survey 2026In 2026, living in Tucson, AZ incurs an average monthly utility expense of $355, compared to $390 per month in Phoenix, AZ. This reflects a 9% lower overall household utility cost, saving homeowners approximately $35 monthly or $420 each calendar year. Residential power tariffs in Tucson average $0.142 per kWh supplied by Tucson Electric Power (TEP), whereas Phoenix residents pay $0.148 per kWh through Arizona Public Service (APS). Municipal water and sewer charges also diverge, with Tucson averaging $35.60 in combined monthly meter baselines versus $34.50 in Phoenix. Climatologically, Tucson registers 3700 Cooling Degree Days and 1400 Heating Degree Days, compared to 4450 CDD and 950 HDD in Phoenix, creating distinctly different seasonal heating and cooling load patterns across winter and summer quarters. Overall, verified 2026 public tariff benchmarks confirm that Tucson maintains more economical municipal utility infrastructure than Phoenix.