Arizona Public Service Co time-of-use hours

On R-3, on-peak hours run 4 PM – 7 PM on weekdays. Below is every active TOU rate plan we track for Arizona Public Service Co — 6 plans — with period boundaries verified against the published tariff. No price values; periods only.

For developers & agents

Query Arizona Public Service Co periods programmatically.

One call returns the current period and the next transition time for any U.S. ZIP or address — GET /query/current over REST, or the same data through MCP for AI agents.

Get a free API key Read the docs

Rate plan schedules

Every active time-of-use plan we track for Arizona Public Service Co, with its period boundaries.

R-3 Time-of-Use 4pm-7pm Weekdays with Demand Charge Residential
PeriodSeasonDaysHours
On-Peak All year Mon–Fri 4 PM – 7 PM
Super Off-Peak Nov 1 – Apr 30 Mon–Fri 10 AM – 3 PM
Effective
Mar 8, 2024
Verified
TOU-E Time-of-Use 4pm-7pm Weekdays Residential
PeriodSeasonDaysHours
On-Peak All year Mon–Fri 4 PM – 7 PM
Super Off-Peak Nov 1 – Apr 30 Mon–Fri 10 AM – 3 PM
Effective
Mar 8, 2024
Verified
E-32TOU-L Large General Service (401 kW+) Time-of-Use Commercial
PeriodSeasonDaysHours
On-Peak All year Mon–Fri 3 PM – 8 PM
Effective
Mar 8, 2024
Verified
E-32TOU-M Medium General Service (101-400 kW) Time-of-Use Commercial
PeriodSeasonDaysHours
On-Peak All year Mon–Fri 3 PM – 8 PM
Effective
Mar 8, 2024
Verified
E-32TOU-S Small General Service (21-100 kW) Time-of-Use Commercial
PeriodSeasonDaysHours
On-Peak All year Mon–Fri 3 PM – 8 PM
Effective
Mar 8, 2024
Verified
E-32TOU-XS Extra Small General Service (0-20 kW) Time-of-Use Commercial
PeriodSeasonDaysHours
On-Peak All year Mon–Fri 3 PM – 8 PM
Effective
Mar 8, 2024
Verified

Frequently asked

  1. What are Arizona Public Service Co's on-peak hours?

    On the R-3 plan (Time-of-Use 4pm-7pm Weekdays with Demand Charge), on-peak hours run from 4 PM – 7 PM on weekdays. All remaining hours are classified as off-peak.

  2. Does Arizona Public Service Co charge more for electricity at certain times?

    Yes. Arizona Public Service Co offers time-of-use (TOU) rate plans where electricity costs vary depending on the period. The period—peak, off-peak, mid-peak, or super off-peak—depends on the time, day, and season. This page lists boundaries for 6 active schedules; tou.tools does not publish pricing ($/kWh) details.

  3. How do I get Arizona Public Service Co time-of-use periods in my app?

    Schedules are accessible programmatically via the tou.tools REST API and MCP server for AI agents. By querying a U.S. address or ZIP code, your application can instantly retrieve the current period and next scheduled transition time. Developer API keys are free.

  4. Do Arizona Public Service Co time-of-use hours change during holidays or seasons?

    Yes. Peak hours and rate periods can vary by season (typically summer and winter halves) and special holidays. While some schedules like E-ELEC keep stable hours year-round, others introduce super off-peak windows or adjust peak times. Check each rate plan card above for specific seasonal boundaries.