HomeWattCost

Evergy Missouri Metro RPKA vs RTOU

For a typical Missouri home using 1,039 kWh a month, RPKA is cheaper by about $117 a year ($136 against $146 a month). RPKA 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 Evergy Missouri MetroTariffs checked 2026-10-01Typical use 1,039 kWh/mo, Missouri

Head to head

ScenarioRPKARTOUCheaper
Typical home, per month$136$146RPKA
All-in price per kWh13.1¢14.1¢RPKA
Home + EV, charged at the cheapest hour$161$160Tie
Home + EV, plugged in at 6 pm$165$213RPKA
Fixed charge$12.00$12.00

Typical home: Missouri 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 12 am on RPKA, 12 am on RTOU.

Month by month

Typical-home bill each month on each plan.

PlanJanFebMarAprMayJunJulAugSepOctNovDec
RPKA$138$121$107$96$102$172$217$208$153$99$101$124
RTOU$166$139$116$101$120$173$215$207$155$110$107$147

RPKA: price by hour

July weekday.

Off-peakMid-peakPeak
14.2¢15.2¢16.2¢15.2¢12a3a6a9a12p3p6p9p12a

RTOU: price by hour

July weekday.

Off-peakMid-peakPeak
5.8¢11.4¢33.9¢11.4¢12a3a6a9a12p3p6p9p12a

RPKA or RTOU: common questions

Is RPKA or RTOU cheaper?

For a typical Missouri home using 1,039 kWh a month, RPKA is cheaper by about $117 a year ($136 against $146 a month). RPKA 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, both plans cost about the same ($161 and $160 a month).

What is the difference between RPKA and RTOU?

RPKA is time-of-use (summer weekdays: Mid-peak 6 am–4 pm, Peak 4 pm–8 pm, Mid-peak 8 pm–12 am; lowest price 12 am–6 am), with a fixed charge of $12.00 a month. RTOU is time-of-use (summer weekdays: Mid-peak 6 am–4 pm, Peak 4 pm–8 pm, Mid-peak 8 pm–12 am; lowest price 12 am–6 am), with a fixed charge of $12.00 a month.

More Evergy Missouri Metro comparisons

How the two plans work

RPKA: Residential Peak Adjustment Service (Default Time Based Plan)

  • Mid-peak 6 am–4 pm, Peak 4 pm–8 pm, Mid-peak 8 pm–12 am on July weekdays; 4 of 24 hours carry the top price of 16.2¢.
  • The cheapest July weekday hour costs 14.2¢, so moving 1 kWh out of the top hours saves 2.0¢.
  • January weekdays range from 5.8¢ to 7.1¢.
  • Summer pricing applies Jun–Sep; winter pricing Oct–May.
  • Fixed charge: $12.00 a month.

RTOU: Residential Time of Use - Three Period (Nights & Weekends Plan)

  • Mid-peak 6 am–4 pm, Peak 4 pm–8 pm, Mid-peak 8 pm–12 am on July weekdays; 4 of 24 hours carry the top price of 33.9¢.
  • The cheapest July weekday hour costs 5.8¢, so moving 1 kWh out of the top hours saves 28.1¢.
  • January weekdays range from 4.8¢ to 27.8¢.
  • Summer pricing applies Jun–Sep; winter pricing Oct–May.
  • Weekends differ: Mid-peak 6 am–12 am.
  • Fixed charge: $12.00 a month.

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