Is solar worth it in Phoenix, AZ?
A typical 7 kW rooftop system in Phoenix produces about 11,210 kWh/year and pays back in roughly 17.7 years against the area’s ~10.6¢/kWh commercial rate. Computed from Phoenix’s solar geometry — refine for your exact roof below.
Monthly production — 7 kW system in Phoenix
How much solar does Phoenix get?
Phoenix’s desert climate gives a solar specific yield of about 1,601 kWh per kW of installed panels each year (south-facing, tilted near the latitude of 33°). At an estimated commercial electricity rate of ~10.6¢/kWh, a 7 kW array offsets roughly $1k of bills in year one, for a simple payback near 17.7 years before incentives. Add storage and you can ride through outages and shift usage off peak — model the full system for your address next.
Get the exact payback for your roof
Run real NREL PVWatts production against your actual serving utility — then size storage in the modeler.