Solar in Phoenix, Arizona
State-level figures below are sourced; city-specific claims carry an in-review label where unverified
Phoenix is among the sunniest metros in the U.S., so production per panel is excellent — but summer cooling demand is enormous and export rules vary by utility (APS vs SRP). Size for the AC months, not the March average.
- Utility: APS or SRP (service-area dependent)
- State guide: Arizona — export rules, incentives, estimator
- Measured sun (Arizona): {'abbr': 'az', 'annual': 5.53, 'city': 'Phoenix', 'lat': 33.448, 'lon': -112.074, 'm': [3.01, 4.01, 5.4, 6.99, 7.84, 7.55, 7.18, 6.47, 6.13, 4.9, 3.69, 3.19], 'name': 'Arizona', 'tz': 'America/Phoenix'} (source: 2024 solar radiation (GHI, kWh/m2/day) at each state's capital, Open-Meteo archive (ERA5 reanalysis), measured daily sums -> monthly means, fetched 2026-08-08. State-wide average for the capital's site; an exact roof differs (tilt, shade).)
What standing here means
Arizona export policies vary by service area — both utilities publish them; verified policy notes are tracked on the Arizona page.
The honest next step
City-level numbers come from real quotes, not websites: run the Arizona estimator with your actual bill, then score three itemized bids with the quote scorecard.