Missouri time-of-use hours by utility

Every Missouri 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.

4Utilities covered
23Active TOU plans
821ZIP codes covered

Every TOU schedule on this page verified since

Frequently asked

  1. What are the typical time-of-use on-peak hours in Missouri?

    Across the 14 residential TOU plans tou.tools tracks in Missouri, the most common on-peak window is 4 PM – 8 PM (8 plans); others run 6 AM – 10 PM and 3 PM – 7 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.

  2. Which electric utilities in Missouri offer time-of-use rate plans?

    tou.tools tracks 4 Missouri utilities with at least one active TOU rate plan — 23 active schedules in total. The largest by customers served are Union Electric Co, Evergy Missouri West, and Evergy Metro. They span investor-owned utilities. The full list above is sorted by customers served.

  3. Do Missouri time-of-use peak hours apply on weekends?

    It depends on the plan. Of the 14 residential TOU plans we track in Missouri, 5 apply on-peak periods every day including weekends, while 9 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.

  4. Do Missouri time-of-use hours change by season?

    Some do. Of the 14 residential TOU plans we track in Missouri, 5 shift their period boundaries between seasons (typically summer and winter), while 9 keep the same hours year-round. Each schedule above lists its exact season dates.

  5. When is the cheapest time to charge an EV in Missouri?

    tou.tools tracks 3 EV-specific rate plans in Missouri (BEVCS, MO-RTOU-EV, and RTOU-EV). On EV time-of-use plans the lowest-cost window is generally the overnight super-off-peak or off-peak period; charging then avoids the on-peak window. See the EV plan schedules for the exact hours.

  6. How do I find which Missouri utility serves a specific address or ZIP code?

    tou.tools maps 821 Missouri 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.

For developers & agents

Time-of-use periods for all of Missouri, one API.

Resolve any Missouri ZIP or address to its utility and get the current period plus the next transition — over REST or MCP.