HomeWattCost

Evergy RS vs TOU

RS and TOU cost about the same for a typical Kansas home (within $7 a year). RS 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 EvergyTariffs checked 2026-10-01Typical use 886 kWh/mo, Kansas

Head to head

ScenarioRSTOUCheaper
Typical home, per month$144$144Tie
All-in price per kWh16.2¢16.3¢RS
Home + EV, charged at the cheapest hour$183$168TOU
Home + EV, plugged in at 6 pm$183$212RS
Fixed charge$15.25$15.25

Typical home: Kansas 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 RS, 1 am on TOU.

Month by month

Typical-home bill each month on each plan.

PlanJanFebMarAprMayJunJulAugSepOctNovDec
RS$158$121$115$107$125$167$216$209$142$119$109$134
TOU$147$113$108$102$129$179$229$223$154$117$102$126

RS: price by hour

July weekday.

Same price all day
15.3¢12a3a6a9a12p3p6p9p12a

TOU: price by hour

July weekday.

Off-peakMid-peakPeak
12.8¢9.0¢12.8¢31.5¢12.8¢12a3a6a9a12p3p6p9p12a

RS or TOU: common questions

Is RS or TOU cheaper?

RS and TOU cost about the same for a typical Kansas home (within $7 a year). RS 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, TOU gives the lower total ($168 against $183 a month).

What is the difference between RS and TOU?

RS is tiered: the price per kWh rises with monthly use, with a fixed charge of $15.25 a month. TOU is time-of-use (summer weekdays: Mid-peak 12 am–1 am, Mid-peak 7 am–5 pm, Peak 5 pm–9 pm, Mid-peak 9 pm–12 am; lowest price 1 am–7 am), with a fixed charge of $15.25 a month.

More Evergy comparisons

How the two plans work

RS: Residential Standard Service

  • In July the first 900 kWh a month cost 14.4¢ each; then 15.3¢ above 900 kWh a month.
  • An average Kansas home (1,364 kWh in July) goes past the first tier, so extra load such as an EV is priced higher.
  • Fixed charge: $15.25 a month.

TOU: Residential Time of Use

  • Mid-peak 12 am–1 am, Mid-peak 7 am–5 pm, Peak 5 pm–9 pm, Mid-peak 9 pm–12 am on July weekdays; 4 of 24 hours carry the top price of 31.5¢.
  • The cheapest July weekday hour costs 9.0¢, so moving 1 kWh out of the top hours saves 22.5¢.
  • January weekdays range from 8.6¢ to 28.6¢.
  • Weekends differ: Mid-peak 12 am–1 am, Mid-peak 7 am–12 am.
  • Fixed charge: $15.25 a month.

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