Arizona Public Service (APS) is an investor-owned utility serving about 1,287,097 homes in Arizona. Here's what its rates and export rules mean for solar: for a typical customer, solar is worth it.
Net billing (reduced export credit) — about 5.554¢ per exported kWh, instantaneous netting.
RCP $0.05554/kWh for systems interconnected Sept 1, 2026-Aug 31, 2027 (prior tranche $0.06171). Locked 10 years. Solar customers must take a TOU or demand plan (e.g., Saver Choice).
Resource Comparison Proxy (RCP) flat export credit, instantaneous netting, locked 10 years
| System | 3.3 kW (50% of 966 kWh/month) |
|---|---|
| Cost | $10,430, $9,430 after incentives |
| First-year savings | $819 |
| Payback | 11.7 years |
| 25-year net | $13,278 |
Uses the utility's average price; time-of-use plans can change this, so pick your plan in the calculator.
Rates we verified from Arizona Public Service (APS)'s tariff documents. Prices are per kWh including the main riders where noted; check your bill for the plan you're on.
Plan for solar customers. Effective 2024-03-08. Fixed charge $13.93/month.
| Period | Price |
|---|---|
| 4pm–7pm (6 months) | 37.0¢ |
| 12am–4pm, 7pm–12am (6 months) | 14.9¢ |
| 4pm–7pm (6 months) | 35.1¢ |
| 10am–3pm (6 months) | 6.0¢ |
| 12am–10am, 3pm–4pm, 7pm–12am (6 months) | 14.9¢ |
Plan for solar customers. Effective 2024-03-08. Fixed charge $13.93/month.
| Period | Price |
|---|---|
| 4pm–7pm (6 months) | 16.5¢ |
| 12am–4pm, 7pm–12am (6 months) | 8.3¢ |
| 4pm–7pm (6 months) | 12.2¢ |
| 10am–3pm (6 months) | 5.8¢ |
| 12am–10am, 3pm–4pm, 7pm–12am (6 months) | 8.3¢ |
EIA-861, 2025.
RCP $0.05554/kWh for systems interconnected Sept 1, 2026-Aug 31, 2027 (prior tranche $0.06171). Locked 10 years. Solar customers must take a TOU or demand plan (e.g., Saver Choice). Exported power is credited at about 5.554¢ per kWh.
Residential customers paid an average of 17.0¢ per kWh in 2025 (EIA), about 17.2¢ adjusted to 2026. The typical home uses 966 kWh a month, a bill of about $166.
For a typical customer, solar is worth it: a 3.3 kW system costing about $9,430 pays back in about 11.7 years, with $13,278 net over 25 years.
About 190,456 homes had net-metered solar at the end of 2025, roughly 14.8% of residential customers (EIA-861).
Legal name: Arizona Public Service Co (EIA ID 803). Data: EIA-861 2025 and monthly data through 2026, state policy research October 2026, utility tariff sheets.