Is Solar Worth It in Arizona? The Honest Math
Arizona is the best solar state in the country by sunshine and one of the trickier ones by economics: exports earn a below-retail rate, and the utilities' solar-customer rate plans have their own quirks. Solar can absolutely pencil here — but not automatically, and not at every price a salesperson quotes. Here's the math with every assumption shown.
The inputs that actually decide payback
A worked example: 1,400 kWh/mo Phoenix home
When solar is clearly worth it
When it isn't
Questions that make a salesperson honest
Your rate plan and solar interact — the right pairing is worth real money. Understand what your exports earn and what the right rate plan already saves before signing anything. If your main panel is older, budget for the upgrade too — many quotes conveniently leave it out.
Frequently asked questions
What’s a realistic solar payback period in Arizona?
For most homes, somewhere in the 7–12 year range depending on system price, your utility’s export rate, how much you self-consume, and the rate plan you pair with it. Be suspicious of any quote promising less than 6 years without showing the assumptions.