Solar Panels in Douglas, AZ: Cost, Payback & Savings
A typical 7.2 kW home solar system in Douglas costs about $22,320 and pays for itself in about 15.3 years, saving roughly $18,044 over 25 years at Arizona's average electricity price of 15.4¢/kWh. Power you send back to the grid earns only about 5.5¢/kWh here, which is built into these numbers.
Monthly solar production in Douglas
Estimated output of a 7.2 kW south-facing roof system. May is the strongest month (1,341 kWh); Jan the weakest (954 kWh).
Solar production (kWh) Typical home use, 1,075 kWh/month
Solar payback calculator for Douglas
Pre-filled with Douglas's sunshine and Arizona's average electricity price. Enter your own bill and an installer's price per watt to see your payback.
Leave export credit blank where the utility offers full net metering. Where exports earn less, solar used at home as it's produced is worth the full price and the rest earns the export credit.
How Douglas compares
- Each kW of panels here produces about 1,850 kWh a year — 5% more than the Arizona median and 35% more than the US median city (1,371 kWh).
- Payback ranks #1 of 72 Arizona places we cover.
- Sunshine varies little across a state; electricity price, installed cost and how utilities credit exported power drive most of the difference between states.
Net metering, tax credits and incentives in 2026
Arizona pays less than retail for exported solar power. Under Resource Comparison Proxy export rate, power you send to the grid earns about 5.5¢/kWh, against 15.4¢ for power you buy. We assume 40% of a no-battery system's output is used at home as it's produced (worth the full price) and the rest is exported, so each solar kWh is worth about 9.5¢. Using more of your solar yourself, by running appliances midday or adding a battery, raises that.
APS and UNS Electric pay about 5.5¢ per exported kWh for applications from September 1, 2026, locked for 10 years. SRP customers (much of metro Phoenix) are on SRP's own solar plans. Source.
There is no federal tax credit for buying home solar installed in 2026. The 30% Residential Clean Energy Credit (Section 25D) ended for systems placed in service after December 31, 2025, so the costs and paybacks on this page include no federal credit.
Arizona and local utilities may still offer rebates, performance payments, property-tax or sales-tax exemptions. Search the DSIRE incentives database for Arizona and ask installers which programs they apply for you.
Frequently asked questions
Is solar worth it in Douglas, AZ?
For a typical home, a solar system pays for itself in about 15.3 years and then keeps saving money. Over 25 years the estimated net savings are $18,044. Verdict: slow payback. Your own payback depends on your roof, your bill and the quotes you get.
How many solar panels do I need in Douglas, AZ?
A home using 1,075 kWh a month (the Arizona average) needs about 18 panels of 400 W — a 7.2 kW system — to cover its annual use. Divide your own yearly kWh by 1,850 to get the kW you need.
How much do solar panels cost in Douglas, AZ?
At 3.10 dollars per watt, a 7.2 kW system costs about $22,320 before any state or utility incentives. There is no federal tax credit for systems installed in 2026.
How much sun does Douglas get?
Douglas averages 6.7 peak sun hours per day, so each kilowatt of panels produces about 1,850 kWh a year.
Does Arizona have net metering?
Not full retail net metering. Under Resource Comparison Proxy export rate, exported solar power earns about 5.5¢ per kWh, versus 15.4¢ for power bought from the grid. Solar you use at home as it's produced still saves the full price.
How much does electricity cost in Arizona?
Residential electricity in Arizona averages 15.4¢ per kWh, and a typical home uses 1,075 kWh a month (EIA).
Solar payback in nearby places
- Sierra Vista Southeast15.5 yrs
- Sierra Vista15.5 yrs
- Nogales15.7 yrs
- Vail15.8 yrs
- Rio Rico15.8 yrs
- Green Valley15.9 yrs
- Sahuarita15.8 yrs
- Tanque Verde15.8 yrs