US Energy Price Monitorby KadoaUpdated weeklyStar on GitHub

NewInsight: Investor-owned utilities charge 23% more for power

South Carolina

Duke Energy Carolinas electricity rates

What homes pay Duke Energy Carolinas for electricity, from EIA.

Investor-owned utility, 596,321 homes in South Carolina. EIA lists it as Duke Energy Carolinas, LLC.

Headlines

Average price
14.1¢ a kWh
Up 1.9% on a year ago
Average bill
$149 a month
Up 4.2% on a year ago
Average use
1,056 kWh
A month. South Carolina 1,069 kWh
Price rank in South Carolina
5 of 6
1 is the most expensive

Over the 12 months to August 2026, Duke Energy Carolinas homes paid 14.1¢ a kWh, against 15.8¢ across South Carolina.

Duke Energy Carolinas vs South Carolina

Duke Energy CarolinasSouth Carolina
Average price, 12 months to August 202614.1¢15.8¢
Price in August 202614.6¢15.8¢
Average monthly bill, 12 months$149$169
Bill in August 2026$197$226
Average monthly use1,056 kWh1,069 kWh
Price change, past year+1.9%+5.5%
Price change since 2019+23%+21%

Electricity price

Average residential price a kilowatt-hour, by month.

Up to and including August 2026

Source: EIA-861M monthly utility survey. Revenue over kilowatt-hours sold, including fixed charges.

Average monthly bill

What an average home pays a month.

Up to and including August 2026

Source: EIA-861M monthly utility survey.