Puget Sound Energy peak
& off-peak hours
Below is every active TOU rate plan we track for Puget Sound Energy — 3 plans — with period boundaries verified against the published tariff. No price values; periods only.
Rate Plans
307 Residential Service Time-of-Use
Residential| Period | Days | Hours |
|---|---|---|
| Apr 1 – Sep 30 | ||
| On-Peak | Mon–Fri | 5 PM – 8 PM |
| Oct 1 – Mar 31 | ||
| On-Peak | Mon–Fri | 7 AM – 10 AM |
| On-Peak | Mon–Fri | 5 PM – 8 PM |
327 Residential Service Time-of-Use with Super Off-Peak
Residential| Period | Days | Hours |
|---|---|---|
| On-Peak | Mon–Fri | 7 AM – 10 AM |
| On-Peak | Mon–Fri | 5 PM – 8 PM |
| Super Off-Peak | Every day | 11 PM – 7 AM |
558 General Service for Electric Vehicle Fleet Charging
EV| Period | Days | Hours |
|---|---|---|
| On-Peak | Every day | 4 PM – 9 PM |
Use these Puget Sound Energy hours in your app.
Current period and next transition for any ZIP or address.
FAQ's
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What are Puget Sound Energy's on-peak hours?
On the 307 plan (Residential Service Time-of-Use), on-peak hours run from 5 PM – 8 PM and 7 AM – 10 AM on weekdays. All remaining hours are classified as off-peak.
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Does Puget Sound Energy charge more for electricity at certain times?
Yes. Puget Sound Energy 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 3 active schedules; tou.tools does not publish pricing ($/kWh) details.
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How do I get Puget Sound Energy 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 Puget Sound Energy 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 Puget Sound Energy's plans?
For customers on EV-specific plans like 558, 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.