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Arizona solar guide · 2026

Arizona solar incentives, rebates & payback

Arizona solar typically pays back in 6–8 years for the average $200/month bill. Arizona's residential solar production averages 1,700+ kWh per kW installed — the highest in the US — and homeowners can claim a 25% state tax credit (capped at $1,000) plus a sales-tax exemption on top of the 30% federal credit. The catch: APS and TEP credit exports at roughly 70% of retail (not full net metering), and SRP uses a time-of-use solar plan that fundamentally changes the math.

Average payback period

7.3 yrs

across 5 Arizona cities at $200/mo bill

Average net cost

$15,874

after federal + state incentives

Average 25-yr savings

$63,570

net of system cost

Arizona was an early solar state — and it shows in the policy. Net metering ended in 2017. APS and TEP now use the Resource Comparison Proxy (RCP) methodology to compensate exports at about 70% of retail. SRP doesn't do traditional net metering at all — they put solar customers on a time-of-use plan where you offset on-peak usage at expensive rates and exports at cheap off-peak rates. Whether SRP's plan is better or worse than APS depends entirely on when you use electricity. Adding a battery improves the math significantly under both APS and SRP.

What incentives can Arizona homeowners actually claim?

Top utilities & net-metering policies

UtilityRate
Arizona Public Service (APS)
Export credit at ~70% of retail (Resource Comparison Proxy methodology). Most residential systems take ~10% longer to pay back vs. full retail NEM.
14.1¢
Salt River Project (SRP)
Time-of-Use Export Pricing plan (no traditional NEM). Solar offsets your on-peak usage at high rates; exports credited at low off-peak. Pairs especially well with a battery.
13.6¢
Tucson Electric Power (TEP)
Same RCP methodology as APS — export credit ~70% of retail. Tucson zone has ~1,780 kWh/kW production, the highest in our AZ coverage.
13.9¢

Arizona solar payback, by city

Payback at a $200/month electric bill, computed live from NREL PVWatts production data and 2026 incentives.

CityPaybackNet cost
Phoenix 850017.2 yrs$15,763
Tucson 857017.1 yrs$15,537
Flagstaff 860017.5 yrs$16,438
Mesa 852017.3 yrs$15,869
Glendale 853017.2 yrs$15,763

Run yours at the calculator.

When solar pays off in Arizona

  • ✓Highest US solar production (1,700–1,780 kWh/kW) means smaller systems offset more bill.
  • ✓$1,000 state tax credit + sales tax exemption + federal 30% credit stack to ~38% off gross cost.
  • ✓Tucson, Phoenix, Mesa, and Glendale all have similar high-production economics — pick by utility, not city.

When it's harder

  • !No full retail net metering — APS and TEP credit exports at ~70% of retail.
  • !SRP customers face a time-of-use plan that benefits self-consumption far more than exports.
  • !AZ's $1,000 state credit cap means high-cost installs hit the cap quickly (above ~$4k system cost).

Run the math for your zip

State averages are useful but your zip code, utility, and bill move the numbers significantly. The calculator uses your actual inputs.

Open the solar calculator →

Common questions

Why isn't Arizona's solar payback faster given how sunny it is?▾

Two reasons. First, Arizona's average residential electric rate (~14¢/kWh) is much lower than New York (24¢) or California (30¢) — so each kWh you offset is worth less. Second, exports get credited at about 70% of retail under APS/TEP's RCP methodology, not full retail. The math: if PG&E pays back in 6 years at 31¢/kWh and 1,500 kWh/kW production, Phoenix at 14¢/kWh and 1,757 kWh/kW lands at roughly 7 years — sun matters but rate matters more.

What's the difference between APS and SRP solar?▾

APS uses a fixed export rate (~70% of retail). You offset your usage at retail when solar is producing and you're consuming, and exports get the lower rate. SRP requires solar customers to be on a time-of-use plan: you pay much more for on-peak power (4–7pm) and much less off-peak. Solar produces during the day when off-peak rates apply to exports, but offsets afternoon on-peak load directly — which is huge. Adding a battery lets you discharge during on-peak, dramatically improving SRP economics.

How does the $1,000 Arizona state tax credit work?▾

Arizona's Residential Solar Energy Credit covers 25% of installed costs up to $1,000 lifetime per residence. For a $20,000 system, you'd hit the cap (25% = $5,000, capped at $1,000). For a $4,000 system, you'd get 25% = $1,000 — exactly the cap. So for any system above $4k cost (basically all residential installs), you get the full $1,000 credit. Apply via Arizona Department of Revenue Form 310.

Is solar still worth it in Arizona despite the policy changes?▾

Yes — payback is still 6–8 years for most homeowners, which is competitive with any state. The headline is that AZ solar isn't quite the slam-dunk it was pre-2017 (when full net metering existed), but with the highest production in the US plus stackable incentives, it remains a strong financial decision for owners staying 7+ years.

Should I add a battery in Arizona?▾

Strong yes for SRP customers — the time-of-use plan is essentially designed to push you toward batteries. Modest yes for APS/TEP customers — it improves payback by 1–2 years vs. solar-only. The federal 30% ITC applies to batteries paired with solar, and AZ's sales tax exemption applies. A typical 10 kWh battery adds $10–14k to install cost; combined with solar in SRP territory, payback stays within 7–9 years for most homes.

Which Arizona city has the best solar economics?▾

Tucson edges out Phoenix slightly on raw production (1,781 vs 1,757 kWh/kW), but the differences across our supported cities are within 5%. The bigger variable is which utility you're served by: TEP (Tucson) and APS (Phoenix metro) use the same RCP framework, while SRP (Tempe, Mesa, parts of Phoenix) is fundamentally different. Pick your battery + plan strategy based on your utility, not your city.

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