HomeWattCost

Duke Energy Progress RES vs R-TOU

For a typical North Carolina home using 1,029 kWh a month, RES is cheaper by about $37 a year ($180 against $183 a month). RES stays cheaper 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 1,029 kWh/mo, North Carolina

Head to head

ScenarioRESR-TOUCheaper
Typical home, per month$180$183RES
All-in price per kWh17.5¢17.8¢RES
Home + EV, charged at the cheapest hour$223$213R-TOU
Home + EV, plugged in at 6 pm$223$239RES
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$200$163$143$152$205
R-TOU$234$204$149$135$162$205$240$207$169$136$150$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

How the two plans work

RES: Residential Service

  • In July the first 0 kWh a month cost 16.1¢ each; then .
  • An average North Carolina home (1,338 kWh in July) stays within the first tier.
  • 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 follow a different schedule from weekdays.
  • 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.