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Solar Panels in Tucson, Arizona

Tucson receives 1739.5 kWh per kWp of solar panels per year — 14.2% above the US national average of 1,550 kWh/kWp. At Arizona's electricity rate of 15.61¢/kWh, an 8 kW system saves roughly $2,172/year and pays back in 7 years.

Solar is very worth it in Tucson. Note: The 30% federal solar tax credit (Section 25D) expired December 31, 2025. The numbers below reflect today's actual costs.

Annual yield:1739.5 kWh/kWp
Electricity rate:15.61¢/kWh
Payback:7 yrs
Location:32.22°N

Tucson Solar at a Glance

Annual solar yield1739.5 kWh/kWp/yr
Optimal tilt angle24° south-facing
Avg. daily sun hours28.0 hrs/day
Electricity rate15.61¢ per kWh
8 kW system cost (2026)$22,400
Arizona state credit− $56
Your net cost$22,344
Annual savings$2,172/yr
Payback period7 years

Last updated: April 11, 2026 · Sources: PVGIS v5.3, EIA

How Much Solar Power Does Tucson Get Each Month?

Monthly solar yield (kWh per kWp installed) based on PVGIS satellite data for 32.22°N, 110.97°W.

129
129
164
171
174
159
140
141
134
148
131
120
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Best month: 173.9 kWh/kWp (May)Worst month: 120 kWh/kWp (Dec)Monthly avg: 145 kWh/kWp

Live Solar Forecast for Tucson

Real-time generation estimate for an 8 kW system based on today's weather forecast. Data: forecast.solar.

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Is a Home Battery Worth It in Tucson?

A battery stores excess midday solar for use at peak evening hours. At 15.61¢/kWh in Tucson, here is the math for the two most popular options.

Tesla Powerwall 3
Capacity
13.5 kWh
Installed cost
$11,500
Annual savings
$615
Payback
18.7 yrs

10-year value: $6,150 · Based on 365 cycles/yr, 15.61¢/kWh, 80% usable capacity. Does not include backup value or utility TOU rate savings.

Generic LFP 10 kWh
Capacity
10 kWh
Installed cost
$8,000
Annual savings
$437
Payback
18.3 yrs

10-year value: $4,370 · Based on 350 cycles/yr, 15.61¢/kWh, 80% usable capacity. Does not include backup value or utility TOU rate savings.

Battery ROI improves significantly in states with Time-of-Use (TOU) rates where peak electricity can cost 2–3× the off-peak rate. California (PG&E, SCE, SDG&E), New York (ConEd), and Massachusetts (Eversource) have the strongest TOU incentives for battery storage.

What Are the 25-Year Solar Savings in Tucson?

Based on 1739.5 kWh/kWp/yr yield, 15.61¢/kWh electricity rate, and a 2026 system cost of $2.80/W. Federal tax credit expired Dec 31, 2025 — not included.

System cost
$22,400
Installed, 8 kW
State credit
−$56
Arizona only
Net investment
$22,344
Your actual cost
25-yr savings
$51,585
Est. lifetime benefit
Federal Solar Tax Credit Update: The 30% residential solar tax credit (Section 25D) expired on December 31, 2025 under the One Big Beautiful Bill. Cash and loan purchases no longer qualify for the federal credit. State and local incentives below may still apply — check with your installer.

What Solar Incentives Are Available in Tucson, Arizona?

The federal ITC expired in 2025. These state and utility incentives still apply in Arizona.

Arizona State Tax Credit
0% of cost back on your state income taxes.
Property Tax Exemption
Arizona exempts the solar-added home value from property taxes. A $22,400 system won't raise your tax bill.
Sales Tax Exemption
Solar equipment is sales-tax exempt in Arizona — saving you hundreds at purchase.
Net Metering
APS: net metering at retail rate for first 10 years, then wholesale. SRP: Customer Generation Credit (~2.8¢/kWh export).
Utility & Local Programs
25% state income tax credit (up to $1,000/year), APS/SRP utility rebates, sales tax exempt
See all Arizona incentives Solar learning guides
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Solar Panels in Tucson: Frequently Asked Questions

How much do solar panels cost in Tucson, Arizona in 2026?
In Tucson, a typical 8 kW solar system costs approximately $22,400 installed (at ~$2.80/W, the 2026 US average). The federal solar tax credit expired December 31, 2025, so that 30% rebate is no longer available for residential cash or loan purchases. Arizona's state tax credit saves an additional $56, bringing your net cost to $22,344. Prices vary by installer, panel brand, and roof complexity.
Is solar worth it in Tucson without the federal tax credit?
Tucson generates 1739.5 kWh per kWp annually — 14.2% above the US average. At Arizona's electricity rate of 15.61¢/kWh, an 8 kW system saves roughly $2,172/year and pays back in about 7 years — even without the expired federal credit. Solar is very worth it in Tucson.
How much electricity do solar panels produce in Tucson?
In Tucson, each kW of solar panels produces approximately 1739.5 kWh per year. An 8 kW system generates about 13,916 kWh annually — enough to cover the average Arizona household's electricity use. Peak production hits 173.9 kWh/kWp in May, with the lowest output of 120 kWh/kWp in Dec. Data source: PVGIS v5.3 satellite radiation model.
What solar incentives are available in Tucson, Arizona?
the expired federal tax credit (Section 25D) expired December 31, 2025 and is no longer available for residential buyers. Arizona still offers a state tax credit of 0% (up to $56). Arizona also exempts solar systems from property tax assessments. Sales tax on solar equipment is waived in Arizona. Net metering and local utility programs may provide additional savings.
How long is the solar payback period in Tucson?
In Tucson, the average payback period for an 8 kW solar system is approximately 7 years. This is based on 1739.5 kWh/kWp annual yield (PVGIS data), a 15.61¢/kWh electricity rate (EIA 2026 data), and an $22,400 installed cost. After payback, the system produces free electricity for 15–20 more years.

Environmental Impact & Home Value in Tucson

An 8 kW solar system in Tucson produces roughly 13,916 kWh/year. Here is what that means beyond your electricity bill.

🌿
CO₂ avoided per year
5.4 tonnes
5,372 kg · EPA grid avg 0.386 kg/kWh
🌳
Tree equivalent
246 trees
Trees needed to absorb same CO₂ annually
🏠
Home value boost
+$1,546
Avg +6.9% (Lawrence Berkeley Lab / Zillow data)
⚡
US homes powered
1
Avg US home uses 10,632 kWh/yr (EIA 2024)

How Many Solar Panels Do You Need in Tucson?

The right system size depends on your annual electricity usage and how much of your bill you want to offset. In Tucson, where annual solar yield is 1739.5 kWh per kWp, here is what different households typically need:

Annual usageSystem sizePanels (400 W)Est. costAnnual savings
6,000 kWh
Small home		3.5 kW9 panels$9,800$937/yr
10,800 kWh
Average home		6.3 kW16 panels$17,640$1,686/yr
15,000 kWh
Large home		8.7 kW22 panels$24,360$2,342/yr
20,000 kWh
Large + EV		11.5 kW29 panels$32,200$3,122/yr

Costs based on $2.80/W installed (2026 US average). Panel count assumes 400 W modules. Savings based on current 15.61¢/kWh rate. State incentives not included — see above for Arizona credits.

TucsonSolar Resources & 2026 Incentives

Key information for homeowners in Tucson going solar in 2026 — after the federal 30% tax credit expired December 31, 2025.

⚡ Federal Tax Credit Status (2026)

The 30% Section 25D residential solar credit expired December 31, 2025. An 8 kW system in Tucson costs $22,344 after a $56 Arizona state credit. The commercial Section 48 credit (for businesses, landlords) was not affected.

IRS Residential Clean Energy Credit →
🔌 Net Metering in Arizona

APS: net metering at retail rate for first 10 years, then wholesale. SRP: Customer Generation Credit (~2.8¢/kWh export).

DSIRE — Arizona Incentive Database →
🏛️ Arizona State Incentives

25% state income tax credit (up to $1,000/year), APS/SRP utility rebates, sales tax exempt

✓ Property tax exempt✓ Sales tax exempt
📚 Authoritative Sources

Solar Data for Nearby Arizona Cities

Gilbert
1697.4 kWh/kWp · 7.1 yr payback
Chandler
1696.7 kWh/kWp · 7.1 yr payback
Mesa
1696.2 kWh/kWp · 7.1 yr payback
Tempe
1697.2 kWh/kWp · 7.1 yr payback
Scottsdale
1704.6 kWh/kWp · 7.1 yr payback
Phoenix
1708.9 kWh/kWp · 7.1 yr payback
View all Arizona cities