Montana time-of-use hours by utility
Every Montana 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 Montana
Sorted by number of customers served in Montana.
Frequently asked
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What are the typical time-of-use on-peak hours in Montana?
Across the 2 residential TOU plans tou.tools tracks in Montana, the most common on-peak window is 12 PM – 8 PM (1 plan); others run 7 AM – 10 AM and 5 PM – 8 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 Montana offer time-of-use rate plans?
tou.tools tracks 2 Montana utilities with at least one active TOU rate plan — 7 active schedules in total. The largest by customers served are Flathead Electric Coop Inc and Montana-Dakota Utilities Co. They span investor-owned utilities and electric cooperatives. The full list above is sorted by customers served.
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Do Montana time-of-use peak hours apply on weekends?
On the residential TOU plans we track in Montana, on-peak hours apply on weekdays only — weekends are off-peak across all 2 plans. 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 Montana time-of-use hours change by season?
Not on the plans we track. All 2 residential TOU plans in Montana keep the same period hours year-round. Each schedule above lists its exact season dates.
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How do I find which Montana utility serves a specific address or ZIP code?
tou.tools maps 554 Montana 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 Montana, one API.
Resolve any Montana ZIP or address to its utility and get the current period plus the next transition — over REST or MCP.