HomeWattCost

Evergy Missouri Metro RPKA vs RTOU-3

RPKA and RTOU-3 cost about the same for a typical Missouri home (within $8 a year). RTOU-3 is cheaper below about 1,100 kWh a month and RPKA above it, with the same daily pattern of use.

Utility Evergy Missouri MetroTariffs checked 2026-10-01Typical use 1,039 kWh/mo, Missouri

Head to head

ScenarioRPKARTOU-3Cheaper
Typical home, per month$136$137Tie
All-in price per kWh13.1¢13.2¢RPKA
Home + EV, charged at the cheapest hour$161$144RTOU-3
Home + EV, plugged in at 6 pm$165$205RPKA
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-3.

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-3$143$120$101$88$107$177$221$212$159$97$93$127

RPKA: price by hour

July weekday.

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

RTOU-3: price by hour

July weekday.

Off-peakMid-peakPeak
3.1¢12.1¢36.0¢12.1¢12a3a6a9a12p3p6p9p12a

RPKA or RTOU-3: common questions

Is RPKA or RTOU-3 cheaper?

RPKA and RTOU-3 cost about the same for a typical Missouri home (within $8 a year). RTOU-3 is cheaper below about 1,100 kWh a month and RPKA above it, with the same daily pattern of use. Adding an EV driven 1,000 miles a month and charged at each plan’s cheapest hour, RTOU-3 gives the lower total ($144 against $161 a month).

What is the difference between RPKA and RTOU-3?

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-3 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-3: Residential High Differential Time of Use (Nights and Weekends Max 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 36.0¢.
  • The cheapest July weekday hour costs 3.1¢, so moving 1 kWh out of the top hours saves 32.9¢.
  • January weekdays range from 2.4¢ to 27.4¢.
  • 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.