HomeWattCost

Duke Energy Progress RES vs R-TOU

For a typical North Carolina home using 1,044 kWh a month, RES is cheaper by about $38 a year ($183 against $186 a month). RES 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 Duke Energy ProgressTariffs checked 2026-09-28Typical use 1,044 kWh/mo, North Carolina

Head to head

ScenarioRESR-TOUCheaper
Typical home, per month$183$186RES
All-in price per kWh17.5¢17.8¢RES
Home + EV, charged at the cheapest hour$225$216R-TOU
Home + EV, plugged in at 6 pm$225$242RES
Fixed charge$15.81$15.81

Typical home: North Carolina 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 RES, 1 am on R-TOU.

Month by month

Typical-home bill each month on each plan.

PlanJanFebMarAprMayJunJulAugSepOctNovDec
RES$228$203$150$138$155$197$231$227$164$144$152$205
R-TOU$234$204$150$135$162$205$240$235$170$137$151$208

RES: price by hour

July weekday.

Same price all day
16.1¢12a3a6a9a12p3p6p9p12a

R-TOU: price by hour

July weekday.

Off-peakMid-peakPeak
14.8¢10.9¢14.8¢33.4¢14.8¢12a3a6a9a12p3p6p9p12a

RES or R-TOU: common questions

Is RES or R-TOU cheaper?

For a typical North Carolina home using 1,044 kWh a month, RES is cheaper by about $38 a year ($183 against $186 a month). RES 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, R-TOU gives the lower total ($216 against $225 a month).

What is the difference between RES and R-TOU?

RES is tiered: the price per kWh rises with monthly use, with a fixed charge of $15.81 a month. R-TOU is time-of-use (summer weekdays: Mid-peak 12 am–1 am, Mid-peak 6 am–6 pm, Peak 6 pm–9 pm, Mid-peak 9 pm–12 am; lowest price 1 am–6 am), with a fixed charge of $15.81 a month.

More Duke Energy Progress comparisons

How the two plans work

RES: Residential Service

  • In July every kWh costs about 16.1¢, whatever the month's use.
  • Fixed charge: $15.81 a month.

R-TOU: Residential Time of Use

  • Mid-peak 12 am–1 am, Mid-peak 6 am–6 pm, Peak 6 pm–9 pm, Mid-peak 9 pm–12 am on July weekdays; 3 of 24 hours carry the top price of 33.4¢.
  • The cheapest July weekday hour costs 10.9¢, so moving 1 kWh out of the top hours saves 22.5¢.
  • January weekdays range from 10.9¢ to 33.4¢.
  • Summer pricing applies May–Sep; winter pricing Oct–Apr.
  • Weekends differ: Mid-peak 12 am–1 am, Mid-peak 6 am–12 am.
  • Fixed charge: $15.81 a month.

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