HomeWattCost

Rocky Mountain Power UT Schedule 1 vs Schedule 1 TOU

For a typical Utah home using 786 kWh a month, Schedule 1 is cheaper by about $83 a year ($105 against $112 a month). Schedule 1 is cheaper or about the same at every level of use from 200 to 2,500 kWh a month, with the same daily pattern of use.

Utility Rocky Mountain PowerTariffs checked 2026-09-28Typical use 786 kWh/mo, Utah

Head to head

ScenarioSchedule 1Schedule 1 TOUCheaper
Typical home, per month$105$112Schedule 1
All-in price per kWh13.3¢14.2¢Schedule 1
Home + EV, charged at the cheapest hour$141$133Schedule 1 TOU
Home + EV, plugged in at 6 pm$141$186Schedule 1
Fixed charge$12.30$12.30

Typical home: Utah average use by month (EIA), shaped hour by hour (NREL ResStock), before taxes. EV: Tesla Model Y Long Range AWD, 1,000 miles a month; cheapest start any hour on Schedule 1, 12 am on Schedule 1 TOU.

Month by month

Typical-home bill each month on each plan.

PlanJanFebMarAprMayJunJulAugSepOctNovDec
Schedule 1$95$80$80$76$86$127$182$174$113$79$79$88
Schedule 1 TOU$98$84$85$83$96$138$189$182$124$86$83$92

Schedule 1: price by hour

July weekday.

Same price all day
14.1¢12a3a6a9a12p3p6p9p12a

Schedule 1 TOU: price by hour

July weekday.

Off-peakPeak
8.4¢37.8¢8.4¢12a3a6a9a12p3p6p9p12a

Schedule 1 or Schedule 1 TOU: common questions

Is Schedule 1 or Schedule 1 TOU cheaper?

For a typical Utah home using 786 kWh a month, Schedule 1 is cheaper by about $83 a year ($105 against $112 a month). Schedule 1 is cheaper or about the same at every level of use from 200 to 2,500 kWh a month, with the same daily pattern of use. Adding an EV driven 1,000 miles a month and charged at each plan’s cheapest hour, Schedule 1 TOU gives the lower total ($133 against $141 a month).

What is the difference between Schedule 1 and Schedule 1 TOU?

Schedule 1 is tiered: the price per kWh rises with monthly use, with a fixed charge of $12.30 a month. Schedule 1 TOU is time-of-use (summer weekdays: Peak 6 pm–10 pm; lowest price 10 pm–6 pm next day), with a fixed charge of $12.30 a month.

How the two plans work

Schedule 1: Residential Service

  • In July the first 400 kWh a month cost 11.1¢ each; then 14.1¢ above 400 kWh a month.
  • An average Utah home (1,292 kWh in July) goes past the first tier, so extra load such as an EV is priced higher.
  • Fixed charge: $12.30 a month.

Schedule 1 TOU: Residential Time of Use

  • Peak 6 pm–10 pm on July weekdays; 4 of 24 hours carry the top price of 37.8¢.
  • The cheapest July weekday hour costs 8.4¢, so moving 1 kWh out of the top hours saves 29.4¢.
  • January weekdays range from 7.4¢ to 33.5¢.
  • Summer pricing applies Jun–Sep; winter pricing Oct–May.
  • Weekends differ: off-peak all day.
  • Fixed charge: $12.30 a month.

Your own pattern of use decides the winner: compare every Rocky Mountain Power plan on your usage, or see all Rocky Mountain Power plans, sources and peak hours.