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Editor: Katerine G., Editor & Data Researcher · Research & publishing: Electric Consumer Editorial Team · Data retrieved · Sources named on this page: EIA-861, OpenEI URDB · How we got these numbers · Report an error

Duke Energy Carolinas, LLC bill decoder

$162.14a month at 1,000 kWh on Duke Energy Carolinas's Residential Service (RES-55) Single Phase tariff

Duke Energy Carolinas sells under this tariff at 16.21¢ per kWh all-in, +2.19¢ against the North Carolina average of 14.02¢. The $11.78 fixed charge is 7% of the bill.

Duke Energy Carolinas at 1,000 kWh, line by line

Sample bill for Duke Energy Carolinas, LLC at 1,000 kWhDuke Energy Carolinas, LLC, Residential Service (RES-55) Single Phase: $163.31 for 1,000 kWh in May, the most expensive month of 12; customer charge $11.78, energy $151.53.Duke Energy Carolinas, LLCResidential Service (RES-55) Single Phase1,000 kWh, May, the most expensive month of 12Customer charge$11.781,000 kWh at 15.153¢$151.53Tariff total$163.31Customer charge 7% of the bill16.33¢ per kWh all-in

Duke Energy Carolinas bills $11.78 a month, 7% of the $162.14 total at 1,000 kWh. Duke Energy Carolinas tiers its energy: the first 800 kWh cost 15.153¢, then 14.153¢ above 800 kWh (-7%), so 200 of 1,000 kWh pay the top rate.

Duke Energy Carolinas: what the tariff charges

Duke Energy Carolinas tariff lines
LineChargedAmount
Customer chargeFixed, once a month$11.78
Energy, Oct to Apr, tier 1First 800 kWh15.153¢ per kWh
Energy, Oct to Apr, tier 2Over 800 kWh14.153¢ per kWh
Energy, May to SepEvery kWh15.153¢ per kWh

Duke Energy Carolinas at 500, 1,000 and 2,000 kWh

Duke Energy Carolinas: $162.14 for 1,000 kWh
kWhTotal¢/kWhFixedEnergyNC avg
500$87.5417.51$11.78$75.77$70.10
984 (average home)$159.8116.24$11.78$148.03$137.96
1,000$162.1416.21$11.78$150.36$140.20
2,000$307.8415.39$11.78$296.06$280.40

How the Duke Energy Carolinas total climbs

$49.66 at 250 kWh becomes $453.54 at 3,000 kWh, 9.1 times the bill for 12 times the power.

Duke Energy Carolinas total in dollars, by kWh

  1. 50250
  2. 88500
  3. 125750
  4. 1621,000
  5. 2351,500
  6. 3082,000
  7. 4543,000

Check your Duke Energy Carolinas bill

Duke Energy Carolinas: tariff against EIA

EIA-861 puts the 2024 home price at 13.94¢ for Duke Energy Carolinas, across 1,919,372 home accounts using 984 kWh a month. The tariff gives 16.24¢ ($159.82). The -2.30¢ gap, about -$22.65 a month, is riders, other plans and rate changes.

Other Duke Energy Carolinas residential plans

20 more Duke Energy Carolinas plans fit the model; the decoder prices each.

Duke Energy Carolinas: 20 other plans
PlanSinceType1,000 kWhFixed
RETC (Residential Service All-Electric Time of Use with Critical Peak 2026-01-01time of use$119.81$14.00
RSTC (Residential Service Time of Use with Critical Peak Pricing)2026-01-01time of use$126.30$14.00
Residential Service Energy Star All-Electric ES2025-10-31tiered$129.35$11.96
ES (Residential Service Energy Star, All-Electric)2026-01-01tiered$129.60$14.00
RE (Residential Electric Water Heating and Space Conditioning)2026-01-01tiered$135.42$14.00
ES (Residential Service Energy Star, Standard)2026-01-01flat$135.42$14.00
Residential Electric Water Heating and Space Conditioning - RE2025-10-31tiered$136.09$11.96
Residential Service Energy Star Standard ES2025-10-31tiered$139.15$11.96
RS (Residential Service)2026-01-01flat$141.56$14.00
Residential - RS (SC)2025-10-31tiered$146.40$11.96
Residential Time of Use with Critical Peak Pricing (R-TOU-CPP) Single 2026-01-01time of use$149.55$15.81
Residential Time of Use EV(R-TOU-EV) Single Phase2026-01-01time of use$151.37$15.81
Residential Service Time-of-Use with Critical Peak Pricing(R-TOU-CPP) 2026-02-01time of use$153.77$14.63
Residential Time of Use (R-TOU) Single Phase2026-01-01time of use$156.44$15.81
Residential Time of Use with Critical Peak Pricing (R-TOU-CPP) Three P2026-01-01time of use$158.55$24.81
Residential Time of Use EV(R-TOU-EV) Three Phase2026-01-01time of use$160.37$24.81
Residential Service Time-of-Use with Critical Peak Pricing(R-TOU-CPP) 2026-02-01time of use$162.77$23.63
Residential Time of Use (R-TOU) Three Phase2026-01-01time of use$165.44$24.81
Residential Service - Three Phase2026-01-01tiered$170.68$24.81
Residential Service (RES-55) Three Phase2026-02-01tiered$171.14$20.78

Duke Energy Carolinas: sources and limits

Duke Energy Carolinas: taxes, riders and adjustments sit outside these rates.

Keep going

Questions

How much does Duke Energy Carolinas bill at zero kWh?

The fixed part alone: $11.78 a month. It is 13% of the $87.54 that 500 kWh costs.

What would a 1,000 kWh month cost at Duke Energy Carolinas?

About $162.14 before extras, made of $150.36 for energy and $11.78 fixed, or 16.21¢ per kWh.

Why does my Duke Energy Carolinas bill not match the tariff?

Because EIA's 2024 average of 13.94¢ for Duke Energy Carolinas sits -2.30¢ from the 16.24¢ the tariff gives at 984 kWh. Riders, fees and other plans explain it.

What does the last kWh cost at Duke Energy Carolinas?

Going from 1,000 to 2,000 kWh adds $145.70, or 14.57¢ per extra kWh, against 14.92¢ for 500 to 1,000 kWh.

How old is the Duke Energy Carolinas tariff used here?

It took effect 2026-02-01, 2 months before the April 2026 snapshot. Check Duke Energy Carolinas for newer rates.

What is a typical Duke Energy Carolinas monthly bill on this tariff?

At the 2024 average of 984 kWh (EIA-861) it is $159.82.

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$162.14 a month at 1,000 kWh on Duke Energy Carolinas's Residential Service (RES-55) Single Phase tariff