Solar Panel Payback Calculator for Arizona
Arizona (AZ) offers excellent solar potential with an average of 6.5 peak sun hours per day. The average residential electricity rate is 13.5 cents per kWh, and solar installation costs average $2.60 per watt. Based on these figures, a typical 6 kW residential solar system in Arizona has an estimated payback period of 7.1 years and generates $42,794 in total savings over 25 years.
Solar System Size Comparison for Arizona
The table below compares four common residential solar system sizes for Arizona homeowners. All calculations use the state average electricity rate of 13.5 cents per kWh, average installation cost of $2.60/W, and 6.5 peak sun hours. The federal 30% Investment Tax Credit is included in all scenarios.
| System Size | Gross Cost | Federal Credit | Net Cost | Annual Output | Annual Savings | Payback | 20-Year Savings | 25-Year Savings |
|---|---|---|---|---|---|---|---|---|
| 4 kW | $10,400 | $3,120 | $7,280 | 7,592 kWh | $1,025 | 7.1 years | $19,511 | $28,529 |
| 6 kW | $15,600 | $4,680 | $10,920 | 11,388 kWh | $1,537 | 7.1 years | $29,267 | $42,794 |
| 8 kW | $20,800 | $6,240 | $14,560 | 15,184 kWh | $2,050 | 7.1 years | $39,023 | $57,059 |
| 10 kW | $26,000 | $7,800 | $18,200 | 18,980 kWh | $2,562 | 7.1 years | $48,778 | $71,323 |
Solar Energy in Arizona: What You Need to Know
Arizona is one of the best states for solar energy with the highest average peak sun hours in the nation. The combination of abundant sunshine and relatively low installation costs makes payback periods among the shortest nationwide.
Electricity Rates in Arizona
The average residential electricity rate in Arizona is 13.5 cents per kWh, which is below the national average of approximately 16 cents per kWh. Lower electricity rates mean the payback period is longer, but the 25-year savings are still substantial. As electricity rates continue to rise (averaging 3% per year nationally), the value of solar ownership increases over time.
Peak Sun Hours and Solar Production
Arizona averages 6.5 peak sun hours per day, which is among the highest in the nation. Abundant sunshine translates directly into higher solar energy production, making each panel more productive and accelerating your return on investment. A 6 kW system in Arizona produces approximately 11,388 kWh per year, accounting for standard system efficiency losses and typical weather patterns.
Arizona Solar Incentives and Programs
Arizona's residential solar tax credit expired. Net metering is available but APS and other utilities have moved to export rate structures. Property tax exemption for solar equipment value. Sales tax exemption on solar installations.
Incentive Summary for Arizona
- Federal Tax Credit: 30% ITC (available through 2032)
- State Tax Credit: None
- Net Metering: Available
- SRECs: Not available
- Avg. Installation Cost: $2.60/watt (before incentives)
How Arizona Compares to Similar States
Below is a comparison of Arizona with five states that have similar solar conditions. All calculations are based on a 6 kW residential system using each state's average electricity rate and sun hours.
| State | Sun Hours | Rate (c/kWh) | Cost/Watt | Net Cost | Payback | 25-Yr Savings |
|---|---|---|---|---|---|---|
| Arizona | 6.5 | 13.5c | $2.60 | $10,920 | 7.1 years | $42,794 |
| Nevada | 6 | 13c | $2.65 | $11,130 | 8.1 years | $36,616 |
| New Mexico | 6 | 14.5c | $2.80 | $10,080 | 6.6 years | $43,175 |
| California | 5.5 | 30c | $2.90 | $12,180 | 4.2 years | $88,821 |
| Colorado | 5.5 | 15c | $3.00 | $12,600 | 8.7 years | $37,900 |
| Hawaii | 5.5 | 33c | $3.10 | $8,020 | 2.5 years | $103,081 |
Environmental Impact of Solar in Arizona
Installing a 6 kW solar system in Arizona offsets approximately 10,477 pounds of CO2 per year, which is equivalent to planting 218 trees annually. Over the 25-year lifespan of your solar system, that adds up to roughly 261,925 pounds of avoided carbon emissions. Choosing solar energy is one of the most impactful steps a homeowner can take to reduce their carbon footprint and contribute to cleaner air in Arizona communities.
Ready to Calculate Your Exact Savings?
Use our Solar Payback Calculator to enter your specific system size, electricity rate, and roof shading conditions for a personalized estimate. Or browse all 50 states + DC to compare solar economics across the country.