Pacific Power / Rocky Mountain Power peak
& off-peak hours in Utah

Below is every active TOU rate plan Pacific Power / Rocky Mountain Power offers in Utah — 5 plans — with period boundaries verified against the published tariff. No price values; periods only.

Pacific Power / Rocky Mountain Power also serves California · Idaho · Oregon · Washington · Wyoming — or view all states.

Rate Plans

UT-SCHEDULE-1 Schedule 1 - Residential Service (Time-of-Use Option)

Residential
PeriodDaysHours
On-Peak Mon–Fri 6 PM – 10 PM
Effective
Dec 1, 2025
Verified

UT-SCHEDULE-10 Schedule 10 - Irrigation and Soil Drainage Pumping (Time-of-Day Program)

Agricultural
PeriodDaysHours
May 25 – Sep 15
On-Peak Mon–Fri 4 PM – 10 PM
Effective
Apr 25, 2025
Verified

UT-SCHEDULE-6A Schedule 6A — General Service Energy Time-of-Day Option

Commercial
PeriodDaysHours
On-Peak Mon–Fri 6 PM – 10 PM
Effective
Dec 1, 2025
Verified

UT-SCHEDULE-8 Schedule 8 — Large General Service 1,000 kW and Over (Distribution Voltage)

Commercial
PeriodDaysHours
Jun 1 – Sep 30
On-Peak Mon–Fri 3 PM – 10 PM
Oct 1 – May 31
On-Peak Mon–Fri 6 AM – 9 AM
On-Peak Mon–Fri 6 PM – 10 PM
Effective
Apr 25, 2025
Verified

UT-SCHEDULE-9 Schedule 9 — General Service High Voltage

Commercial
PeriodDaysHours
Jun 1 – Sep 30
On-Peak Mon–Fri 3 PM – 10 PM
Oct 1 – May 31
On-Peak Mon–Fri 6 AM – 9 AM
On-Peak Mon–Fri 6 PM – 10 PM
Effective
Apr 25, 2025
Verified
Free · no credit card

Use these Pacific Power / Rocky Mountain Power hours in your app.

Current period and next transition for any ZIP or address.

Get a free API key

500 calls/mo · REST & MCP

or read the docs

FAQ's

  1. What are Pacific Power / Rocky Mountain Power's on-peak hours in Utah?

    On the UT-SCHEDULE-1 plan (Schedule 1 - Residential Service (Time-of-Use Option)), on-peak hours run from 6 PM – 10 PM on weekdays. All remaining hours are classified as off-peak.

  2. Does Pacific Power / Rocky Mountain Power charge more for electricity at certain times in Utah?

    Yes. Pacific Power / Rocky Mountain Power 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 5 active schedules; tou.tools does not publish pricing ($/kWh) details.

  3. How do I get Pacific Power / Rocky Mountain Power 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 Pacific Power / Rocky Mountain Power 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.