Phoenix is one of the best cities in the country for solar — and one of the most competitive markets. With over 300 sunny days per year, summer electric bills that regularly top $250–$400 per month, and a dense installer market that keeps prices sharp, Phoenix homeowners are uniquely positioned to benefit from solar.
The average installation cost in Phoenix is $2.10 per watt — slightly below the Arizona state average of $2.13/watt thanks to the city's large installer base. For a full overview of statewide pricing context and all available incentives, see our complete Arizona solar cost guide.
Phoenix Solar Costs by System Size (2026)
| System Size | Gross Cost | After Incentives | Est. Monthly Savings |
|---|---|---|---|
| 6 kW | $12,600 | $7,820 | $110–$140 |
| 8 kW | $16,800 | $10,688 | $145–$185 |
| 10 kW | $21,000 | $13,700 | $180–$230 |
| 12 kW | $25,200 | $16,640 | $215–$270 |
| 14 kW | $29,400 | $19,580 | $250–$310 |
After-incentive costs above assume the 30% federal ITC and Arizona's $1,000 state credit. Phoenix homeowners also benefit from the Arizona sales tax exemption on solar equipment and the property tax exemption.
APS vs SRP Territory in Phoenix
Phoenix is split between two major utilities — APS and SRP — and which one you're on matters for your solar economics.
APS territory covers most of central and west Phoenix, Scottsdale, Glendale, Peoria, Surprise, Avondale, and Goodyear. APS pays approximately $0.068/kWh for exported solar. See our APS solar buyback guide for full details on their rate plans.
SRP territory covers east Phoenix, Mesa, Gilbert, Chandler, Tempe, and Queen Creek. SRP's E-27 plan pays approximately $0.065/kWh for exports but also includes demand charges that require careful management. See our SRP solar plan comparison for guidance.
Tip: Check your utility bill or enter your zip code at aps.com or srpnet.com to confirm which utility serves your home before getting solar quotes.
Why Phoenix Electric Bills Are So High — and Why Solar Helps
Phoenix summers are brutal. Air conditioning accounts for 50–70% of a typical Phoenix household's electricity use from May through October. Average monthly bills of $250–$400 during summer are common for 2,000–3,000 sq ft homes. Some larger homes with pools see bills exceeding $500/month.
This high consumption is actually a solar advantage — it means a larger system is justified, the payback math is compelling, and the percentage of the bill you can offset is substantial. A 10 kW system producing about 16,500 kWh/year can offset 80–100% of an average Phoenix household's annual consumption.
See Your Phoenix Solar Savings
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Calculate My Savings →Phoenix Permitting and Timeline
Permits in the City of Phoenix are processed through the Development Services Department. The typical timeline from contract signing to Permission to Operate:
- City permit: 2–5 weeks (Phoenix has an online portal that has improved turnaround significantly)
- Utility interconnection: APS and SRP both take 4–8 weeks from application to approval
- Total: Most Phoenix homeowners wait 8–14 weeks from contract to activation
Phoenix's surrounding suburbs (Scottsdale, Glendale, Chandler, Mesa) have separate permitting jurisdictions. Mesa and Gilbert tend to be among the fastest in the metro; Scottsdale can take slightly longer due to its stricter architectural review process.
Phoenix-Specific Installation Considerations
Heat and Panel Performance
Phoenix summer temperatures regularly hit 110–115°F. Solar panel surface temperatures can reach 150–160°F during peak afternoon hours, temporarily reducing output by 15–25% compared to ideal conditions. The best installers account for this in their production estimates using Phoenix-specific irradiance data. Ask your installer whether they use PVWatts or another location-specific simulation tool. For panel selection that minimizes heat losses, see our guide on best solar panels for Arizona heat.
Roof Types
Phoenix homes commonly have concrete or clay tile roofs, which add $500–$1,500 to installation costs compared to asphalt shingle. Make sure any installer you consider has proven experience with tile roofs and a clear policy on cracked tile replacement.
HOA Communities
Many Phoenix-area communities are governed by HOAs. Arizona law (ARS § 33-1816) protects your right to install solar regardless of HOA rules. HOAs can impose reasonable aesthetic restrictions but cannot prohibit solar outright. Check with your HOA before signing a contract, but know that you have legal backing. Learn more in our Arizona solar incentives guide.
Getting the Best Price in Phoenix
Phoenix's competitive installer market is an advantage for homeowners — but you have to use it. Get at least three quotes from licensed installers (verify ROC license at azroc.gov). The difference between the highest and lowest bid for the same system can be 15–20%.
When comparing quotes, focus on cost per watt rather than total price — it normalizes for system size and makes apples-to-apples comparison easier. A detailed guide to what's included and how to read a quote is in our how to go solar in Arizona guide.
Phoenix Solar Savings: A Real Example
Consider a Phoenix homeowner in Ahwatukee on APS with a $280/month average electric bill:
- Recommended system size: ~11 kW
- Gross cost: ~$23,100
- Federal ITC (30%): −$6,930
- AZ state credit: −$1,000
- Net cost: ~$15,170
- Estimated annual savings: ~$2,800
- Payback period: ~5.4 years
- 25-year total savings: ~$72,000
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