Idaho time-of-use hours by utility
Every Idaho electric utility we track with at least one active time-of-use rate plan, with peak and off-peak hours verified against the published tariff. Periods only — no price values.
Every TOU schedule on this page verified since
Utilities in Idaho
Sorted by number of customers served in Idaho.
Frequently asked
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What are the typical time-of-use on-peak hours in Idaho?
Across the 2 residential TOU plans tou.tools tracks in Idaho, the most common on-peak window is 6 AM – 9 AM (2 plans); others run 3 PM – 11 PM and 6 PM – 11 PM. Every hour outside the on-peak (and any mid-peak) window is billed as off-peak. Exact boundaries vary by utility and plan — see each utility's schedule above.
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Which electric utilities in Idaho offer time-of-use rate plans?
tou.tools tracks 2 Idaho utilities with at least one active TOU rate plan — 4 active schedules in total. The largest by customers served are Idaho Power Co and PacifiCorp. They span investor-owned utilities. The full list above is sorted by customers served.
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Do Idaho time-of-use peak hours apply on weekends?
It depends on the plan. Of the 2 residential TOU plans we track in Idaho, 1 apply on-peak periods every day including weekends, while 1 restrict on-peak to weekdays and treat weekends as off-peak. Many tariffs also treat observed holidays as off-peak; the Days column in each schedule above shows the exact rule.
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Do Idaho time-of-use hours change by season?
Yes. All 2 residential TOU plans we track in Idaho split the year into seasons (typically summer and winter) with different period boundaries. Each schedule above lists its exact season dates.
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How do I find which Idaho utility serves a specific address or ZIP code?
tou.tools maps 963 Idaho ZIP codes to the utilities that serve them. Because service territories can overlap, a ZIP may return more than one candidate utility; supplying a full street address resolves it to a single utility via a geocoded point-in-territory lookup. The REST API and MCP server both return the matching utility and its current TOU period.
Time-of-use periods for all of Idaho, one API.
Resolve any Idaho ZIP or address to its utility and get the current period plus the next transition — over REST or MCP.