Solar Panels in Phoenix, AZ

Q: How many solar panels do I need in Phoenix?

With 6.6 peak sun hours/day, a home using 10870 kWh/month needs about 172 panels (68.8 kW) with 400W panels.

Q: How much do solar panels cost in Phoenix?

Average cost in Phoenix is $2.50/watt. A 68.8 kW system costs ~$172,000 before 30% ITC, or ~$120,400 after.

Q: What is the solar payback period in Phoenix?

At $0.138/kWh, solar pays back in about 6.6 years. 25-year net savings: ~$337,050.

Q: What solar incentives are available in Phoenix?

Federal ITC + AZ tax credit (25% up to $1,000). Always verify with your installer and the DSIRE database.

Phoenix gets 6.6 peak sun hours/day with electricity at $0.138/kWh. Calculate panels needed, cost after 30% ITC, and payback period.

Sun Hours

6.6/day

Rate

$0.138/kWh

Cost/Watt

$2.5

Net Metering

Yes (grandfathered)

☀️ Phoenix Solar Calculator

Monthly Usage10,870 kWh

Panels

172

System Size

68.8 kW

Annual kWh

132,591

Net Cost

$120,400

Savings/yr

$18,298

Payback

6.6 yrs

25-Yr Savings

$337,050

System Sizes in Phoenix

Monthly kWh	Panels	kW	Net Cost	Savings/yr	Payback
500	8	3.2	$5,600	$851	6.6 yrs
750	12	4.8	$8,400	$1,277	6.6 yrs
1,000	16	6.4	$11,200	$1,702	6.6 yrs
1,500	24	9.6	$16,800	$2,553	6.6 yrs
2,000	32	12.8	$22,400	$3,404	6.6 yrs
2,500	40	16.0	$28,000	$4,255	6.6 yrs

Solar Guide for Phoenix (2026)

Phoenix at latitude 33.45°N receives 6.6 peak sun hours/day. At $0.138/kWh, solar offers solid long-term savings.

Incentives: Federal ITC + AZ tax credit (25% up to $1,000).

NEC Solar Requirements

All installations must comply with NEC Article 690: rapid shutdown (690.12), conductor sizing at 125% (690.8), and proper grounding per NEC 250. Use our Solar Wire Size Calculator for conductor sizing.

Disclaimer: Estimates only. Consult a licensed solar installer. NEC Article 690 compliance required.

Frequently Asked Questions

How many solar panels do I need in Phoenix?

How much do solar panels cost in Phoenix?

What is the solar payback period in Phoenix?

What solar incentives are available in Phoenix?

Related Calculators

Solar Panel Calculator

General solar sizing

Solar ROI Calculator

Calculate payback

Electricity Cost Calculator

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