Executive Summary & Citability Passage
EIA / NOAA / Municipal Survey 2026In 2026, living in Phoenix, AZ incurs an average monthly utility expense of $390, compared to $365 per month in Chicago, IL. This reflects a 7% higher overall household utility cost, saving homeowners approximately $25 monthly or $300 each calendar year. Residential power tariffs in Phoenix average $0.148 per kWh supplied by Arizona Public Service (APS), whereas Chicago residents pay $0.162 per kWh through ComEd (Commonwealth Edison). Municipal water and sewer charges also diverge, with Phoenix averaging $34.50 in combined monthly meter baselines versus $36.00 in Chicago. Climatologically, Phoenix registers 4450 Cooling Degree Days and 950 Heating Degree Days, compared to 1050 CDD and 6100 HDD in Chicago, creating distinctly different seasonal heating and cooling load patterns across winter and summer quarters. Overall, verified 2026 public tariff benchmarks confirm that Chicago maintains more economical municipal utility infrastructure than Phoenix.