For homeowners in Ahwatukee Foothills, strong Arizona sun makes solar a logical choice for managing high summer cooling bills. However, the financial equation has changed. Under Salt River Project (SRP) rules in 2026, the value of solar depends heavily on using the energy you generate yourself. Exporting surplus power to the grid earns far less than what you pay for electricity, shifting the focus toward self-consumption and energy storage.
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2026 Solar & Battery Costs in Ahwatukee Foothills
To offset an average electric bill of around $197, a typical home would need an 8.0 kW solar panel system. Here’s a look at the estimated costs before and after Arizona's state tax credit:
- 8.0 kW Solar-Only System: The estimated gross cost is $17,600. After applying the $1,000 Arizona state solar tax credit, the net cost drops to $16,600.
- 8.0 kW System + 10 kWh Battery: For homeowners looking to maximize self-consumption and add backup power, the combined system cost is estimated at $32,600. The net cost after the $1,000 state credit is $31,600.
These figures are based on a modeled price of $2.20 per watt and do not include any federal incentives unless specified.
Incentives & Tax Credits
Arizona Solar Incentives for 2026
While the long-standing federal solar tax credit for homeowners is no longer available for systems placed in service starting in 2026, Arizona still offers valuable state-level benefits:
- Residential Solar Energy Tax Credit: Arizona provides a personal tax credit of 25% of the system's cost, capped at a maximum of $1,000. This is a one-time credit that directly reduces your state tax liability.
- Solar Equipment Sales Tax Exemption: You do not have to pay Arizona's state sales tax on the purchase of solar panels, batteries, and other core components, which lowers the initial investment.
- Property Tax Exemption: Installing a solar system adds value to your home, but thanks to Arizona law, it won't increase your property taxes.
Net Metering: Salt River Project
SRP Reduced Compensation
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How SRP's Export Rates Affect Solar Value
Salt River Project's (SRP) solar program has moved away from the old 1-for-1 net metering model. Now, any excess electricity your panels produce and send to the grid is credited at a discounted export rate, modeled here at around $0.034 per kWh. This is significantly less than the retail rate of about $0.16 per kWh you pay to buy power from SRP. This price difference is the main reason a home battery is recommended—it allows you to store your valuable solar energy for evening use instead of exporting it for pennies on the dollar.
Projected Savings
Modeled Annual Savings & Payback Period
Maximizing your solar investment with SRP means storing excess daytime energy instead of selling it for a low rate. Adding a battery dramatically increases your annual savings, with only a small impact on the payback timeline.
- Solar-Only Savings: The 8.0 kW system is modeled to save an estimated $1,184 per year, with a payback period of approximately 14 years.
- Solar + Battery Savings: By storing and using your own solar power, the same system with a battery can generate estimated annual savings of $2,121. The payback period is just slightly longer at 14.9 years, making the battery a compelling upgrade for its superior bill reduction and outage protection.