Pacific Power / Rocky Mountain Power peak
& off-peak hours in Washington
Below is every active TOU rate plan Pacific Power / Rocky Mountain Power offers in Washington — 6 plans — with period boundaries verified against the published tariff. No price values; periods only.
Pacific Power / Rocky Mountain Power also serves California · Idaho · Oregon · Utah · Wyoming — or view all states.
Rate Plans
No rate plans match those filters.
WA-SCHEDULE-19 Schedule 19 - Residential Service Time of Use Pilot
Residential| Period | Days | Hours |
|---|---|---|
| Jun 1 – Sep 30 | ||
| On-Peak | Every day | 2 PM – 10 PM |
| Oct 1 – May 31 | ||
| On-Peak | Every day | 6 AM – 8 AM |
| On-Peak | Every day | 4 PM – 10 PM |
WA-SCHEDULE-40 Schedule 40 - Agricultural Pumping Service (Optional Time of Use Pilot)
Agricultural| Period | Days | Hours |
|---|---|---|
| Jun 1 – Sep 30 | ||
| On-Peak | Every day | 2 PM – 10 PM |
WA-SCHEDULE-24 Schedule 24 - Small General Service (Optional Time of Use Program)
Commercial| Period | Days | Hours |
|---|---|---|
| Jun 1 – Sep 30 | ||
| On-Peak | Every day | 2 PM – 10 PM |
| Oct 1 – May 31 | ||
| On-Peak | Every day | 6 AM – 8 AM |
| On-Peak | Every day | 4 PM – 10 PM |
WA-SCHEDULE-29 Schedule 29 - Non-Residential Time of Use Pilot
Commercial| Period | Days | Hours |
|---|---|---|
| Jun 1 – Sep 30 | ||
| On-Peak | Every day | 2 PM – 10 PM |
| Oct 1 – May 31 | ||
| On-Peak | Every day | 6 AM – 8 AM |
| On-Peak | Every day | 2 PM – 10 PM |
WA-SCHEDULE-48T Schedule 48T - Large General Service Metered Time of Use, 1,000 kW and Over
Commercial| Period | Days | Hours |
|---|---|---|
| Jun 1 – Sep 30 | ||
| On-Peak | Every day | 2 PM – 10 PM |
| Oct 1 – May 31 | ||
| On-Peak | Every day | 6 AM – 8 AM |
| On-Peak | Every day | 2 PM – 10 PM |
WA-SCHEDULE-45 Schedule 45 - Public DC Fast Charger Optional Transitional Rate
EV| Period | Days | Hours |
|---|---|---|
| Apr 1 – Oct 31 | ||
| On-Peak | Mon–Fri | 1 PM – 8 PM |
| Nov 1 – Mar 31 | ||
| On-Peak | Mon–Fri | 6 AM – 12 PM |
| On-Peak | Mon–Fri | 5 PM – 9 PM |
Use these Pacific Power / Rocky Mountain Power hours in your app.
Current period and next transition for any ZIP or address.
FAQ's
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What are Pacific Power / Rocky Mountain Power's on-peak hours in Washington?
On the WA-SCHEDULE-19 plan (Schedule 19 - Residential Service Time of Use Pilot), on-peak hours run from 2 PM – 10 PM and 6 AM – 8 AM and 4 PM – 10 PM every day. All remaining hours are classified as off-peak.
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Does Pacific Power / Rocky Mountain Power charge more for electricity at certain times in Washington?
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 6 active schedules; tou.tools does not publish pricing ($/kWh) details.
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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.
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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.
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What is the best time to charge an EV under Pacific Power / Rocky Mountain Power's plans in Washington?
For customers on EV-specific plans like WA-SCHEDULE-45, the most cost-effective time to charge is during super off-peak or off-peak hours. Charging during these designated windows significantly reduces electricity costs and minimizes demand on the grid.