HomeWattCost

West Penn Power RS vs RS-TOU

RS and RS-TOU cost about the same for a typical Pennsylvania home (within $13 a year). They stay within about 1% of each other at every level of use from 200 to 2,500 kWh a month, with the same daily pattern of use.

Utility West Penn PowerTariffs checked 2026-10-05Typical use 837 kWh/mo, Pennsylvania

Head to head

ScenarioRSRS-TOUCheaper
Typical home, per month$162$164Tie
All-in price per kWh19.4¢19.5¢RS
Home + EV, charged at the cheapest hour$213$202RS-TOU
Home + EV, plugged in at 6 pm$213$228RS
Fixed charge$9.07$9.07

Typical home: Pennsylvania 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, 12 am on RS-TOU.

Month by month

Typical-home bill each month on each plan.

PlanJanFebMarAprMayJunJulAugSepOctNovDec
RS$216$198$157$125$123$153$196$176$137$128$141$199
RS-TOU$213$197$155$125$127$157$201$180$140$129$141$198

RS: price by hour

July weekday.

Same price all day
18.3¢12a3a6a9a12p3p6p9p12a

RS-TOU: price by hour

July weekday.

Off-peakMid-peakPeak
13.9¢16.6¢26.4¢16.6¢13.9¢12a3a6a9a12p3p6p9p12a

RS or RS-TOU: common questions

Is RS or RS-TOU cheaper?

RS and RS-TOU cost about the same for a typical Pennsylvania home (within $13 a year). They stay within about 1% of each other 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, RS-TOU gives the lower total ($202 against $213 a month).

What is the difference between RS and RS-TOU?

RS is flat: the same price at every hour, with a fixed charge of $9.07 a month. RS-TOU is time-of-use (summer weekdays: Mid-peak 6 am–2 pm, Peak 2 pm–9 pm, Mid-peak 9 pm–11 pm; lowest price 11 pm–6 am next day), with a fixed charge of $9.07 a month.

How the two plans work

RS: Residential Service

  • One price per kWh at every hour, all year: 18.3¢.
  • Shifting use to other hours changes nothing on this plan; using less is the only lever.
  • Fixed charge: $9.07 a month.

RS-TOU: Residential Service, Time-of-Use Default Service

  • Mid-peak 6 am–2 pm, Peak 2 pm–9 pm, Mid-peak 9 pm–11 pm on July weekdays; 7 of 24 hours carry the top price of 26.4¢.
  • The cheapest July weekday hour costs 13.9¢, so moving 1 kWh out of the top hours saves 12.5¢.
  • January weekdays range from 13.9¢ to 26.4¢.
  • Weekends differ: Mid-peak 6 am–11 pm.
  • Fixed charge: $9.07 a month.

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