Arizona Public Service (APS) is the state's largest investor-owned utility, serving most of the Phoenix metro area. This category covers the plans APS actually sells: the four residential rate options open to new customers, the 4pm to 7pm peak pricing window, the solar buyback rate for exported power, and the EV charging plan and its overnight pricing. Each article works from APS's published tariffs rather than marketing language, aimed at homeowners comparing plans or trying to understand a bill.
4 articles in this category
APS pays 6.171 cents per kWh for exported solar as of September 2025, down from 12.9 cents in 2017. Here is the full rate history, how the credit is calculated, and what the 10-year lock actually covers.
APS on-peak is 4pm to 7pm weekdays, year round. Here are the published per-kWh prices for every time period, the twelve off-peak holidays, and the arithmetic on what moving a load is actually worth.
APS still sells a dedicated EV plan with 8.468 cent overnight power. SRP closed its EV plan to new customers with the November 2025 billing cycle and moved its cheapest window to the middle of the day. Here is what that costs.
APS has four residential plans open to new customers as of August 2026. Here are the real rates, the 4pm-7pm peak window, the demand charge math, and the usage profile where each plan wins.
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