South Carolina · Investor Owned

Duke Energy Carolinas, LLC Electricity Rates

Average residential price, customers served and derived annual usage from EIA Form 861, 2024 release.

13.99¢
Avg residential price / kWh
568.6K
Residential customers
-1.3%
vs South Carolina average
$1,722
Implied avg annual bill

Duke Energy Carolinas, LLC charged an average of 13.99¢ per kWh to residential customers in 2024 - close to the South Carolina average and below the US average.

Duke Energy Carolinas, LLC is investor owned - a shareholder-owned company whose retail rates are set through a state regulatory commission. Its reported average residential price is close to the South Carolina customer-weighted average (-1.3%). Its customers used above the national residential norm at about 12,313 kWh a year each.

How this price compares

Ranked by price against the 31 utilities reporting residential rates in South Carolina, Duke Energy Carolinas, LLC comes 13th of 31. The state's range runs from Greenwood CPW at 9.04¢ to Sunnova at 23.13¢, so where a household sits inside South Carolina depends far more on which utility serves it than on the statewide average alone.

Against the 3 other investor owned utilities reporting in South Carolina, which averaged 14.29¢, Duke Energy Carolinas, LLC is close to its own ownership class within the state (-2.2%).

All figures come from the 2024 release, so no comparison mixes vintages. The state figure is customer-weighted across 31 reporting utilities.

Where Duke Energy Carolinas, LLC sits among South Carolina utilities

2024 average residential price across the 31 utilities reporting a rate in South Carolina

13.99¢/kWh Top 42% most affordable More affordable than 60% of 30 other utilities

Duke Energy Carolinas, LLC

average residential price, equal-width bands

Each bar spans 2¢/kWh. Taller bars contain more utilities; the dashed marker locates this utility. Hover, focus or tap a bar for its exact count and share.

Source EIA Form 861 · 2024

Duke Energy Carolinas, LLC average residential price against three benchmarks, 2024
BenchmarkPrice / kWhDifference
Duke Energy Carolinas, LLC 13.99¢ -
South Carolina (customer-weighted, 31 utilities) 14.17¢ -1.3%
United States average 16.48¢ -15.1%
Investor Owned utilities nationally (183) 17.36¢ -19.4%

Rate against consumption: South Carolina utilities

Each dot is one of the 31 South Carolina utilities reporting both a residential price and residential sales in 2024, placed by its rank percentile within that group rather than its raw value, so one very large utility cannot flatten the rest. Bubble size follows customers served, rank-scaled so a utility with millions of customers cannot swamp the rest. Duke Energy Carolinas, LLC is highlighted. In South Carolina the cheapest rate and the smallest implied annual bill happen to belong to the same utility, Greenwood CPW; across the country they usually do not. 2×2 strategic matrix plotting 31 entities by Price rank percentile (100 = most expensive in state) (X) and Consumption rank percentile (100 = heaviest use) (Y), with a crosshair dividing the plot into four quadrants. Costly rate, heavy useCheaper rate, heavy useCostly rate, light useCheaper rate, light use -50050100150 -50050100150 Price rank percentile (100 = most expensive in state) Consumption rank percentile (100 = heaviest use)
Each dot is one of the 31 South Carolina utilities reporting both a residential price and residential sales in 2024, placed by its rank percentile within that group rather than its raw value, so one very large utility cannot flatten the rest. Bubble size follows customers served, rank-scaled so a utility with millions of customers cannot swamp the rest. Duke Energy Carolinas, LLC is highlighted. In South Carolina the cheapest rate and the smallest implied annual bill happen to belong to the same utility, Greenwood CPW; across the country they usually do not.

Scale and consumption

Duke Energy Carolinas, LLC reported 568.6K residential customers, ranking 2nd of 31 utilities in South Carolina by customers served and covering 22.6% of the state's reported residential customers.

Dividing reported residential sales by customers served gives about 12,313 kWh per customer per year - above the national residential norm, implying a typical annual bill near $1,722.

Within South Carolina the median reporting utility sells about 12,722 kWh per customer, so Duke Energy Carolinas, LLC customers use -3.2% against their own state's middle. Consumption close to the state middle means bills here track the price ranking fairly directly.

Every utility reporting in South Carolina

All 31 utilities reporting bundled residential service in South Carolina, largest first, with Duke Energy Carolinas, LLC marked. The named companies either side of it are the ones a household in this state might otherwise be served by.

Residential utilities in South Carolina, 2024, ranked by customers served
Utility Ownership Customers Avg ¢/kWh
Dominion Energy South Carolina, Inc Investor Owned 696.4K 14.59¢
Duke Energy Carolinas, LLC (this page) Investor Owned 568.6K 13.99¢
South Carolina Public Service Authority State 185.5K 11.38¢
Duke Energy Progress - (NC) Investor Owned 143.7K 14.88¢
Berkeley Electric Coop Inc Cooperative 115.1K 14.93¢
Horry Electric Coop Inc Cooperative 86.7K 13.23¢
Palmetto Electric Coop Inc Cooperative 68.3K 12.79¢
Blue Ridge Electric Coop Inc - (SC) Cooperative 67.6K 18.94¢
York Electric Coop Inc Cooperative 65.2K 12.65¢
Laurens Electric Coop, Inc Cooperative 58.4K 14.66¢
Mid-Carolina Electric Coop Inc Cooperative 56.5K 14.88¢
Aiken Electric Coop Inc Cooperative 49.5K 15.53¢
City of Rock Hill - (SC) Municipal 36.5K 12.55¢
Santee Electric Coop, Inc Cooperative 35.2K 14.74¢
Fairfield Electric Coop, Inc Cooperative 32.4K 14.35¢
MPD Electric Cooperative Cooperative 31.9K 10.94¢
Black River Electric Coop, Inc - (SC) Cooperative 30.6K 13.47¢
Greer Commission of Public Wks Municipal 24.9K 11.80¢
Broad River Electric Coop, Inc Cooperative 23.1K 15.91¢
Lynches River Elec Coop, Inc Cooperative 21.4K 15.71¢
City of Orangeburg - (SC) Municipal 20.6K 15.49¢
Tri-County Electric Coop, Inc (SC) Cooperative 17.7K 18.51¢
Easley Combined Utility System Municipal 15.8K 12.81¢
Edisto Electric Coop, Inc Cooperative 15.4K 16.40¢
Newberry Electric Coop, Inc Cooperative 13.0K 16.32¢
Greenwood CPW Municipal 11.8K 9.04¢
Sunrun Inc. Behind the Meter 7.4K 17.13¢
City of Gaffney - (SC) Municipal 6.3K 12.39¢
Lockhart Power Co Investor Owned 5.0K 13.42¢
Sunnova Behind the Meter 298 23.13¢
Haywood Electric Member Corp Cooperative 9 18.97¢

For generation mix and price history statewide, see electricity rates in South Carolina.

Common questions about Duke Energy Carolinas, LLC rates

How much does Duke Energy Carolinas, LLC charge per kWh?
Duke Energy Carolinas, LLC reported an average residential price of 13.99¢ per kWh across its bundled residential customers in the 2024 EIA Form 861 release. That is an annual average across all its residential customers, not a rate schedule, so an individual bill depends on the tariff, usage pattern and season.
Is Duke Energy Carolinas, LLC expensive compared with the rest of South Carolina?
Its average residential price is close to the South Carolina customer-weighted average of 14.17¢ per kWh, a difference of -1.3%. The state figure is weighted by customers across the 31 utilities reporting residential service in South Carolina.
What is the average electricity bill for Duke Energy Carolinas, LLC customers?
Dividing reported residential sales by residential customers gives about 12,313 kWh per customer per year. At the reported average price that implies roughly $1,722 a year, or about $144 a month. This is RateWatt's arithmetic on two EIA columns, not a figure EIA publishes.
Who owns Duke Energy Carolinas, LLC?
EIA classifies Duke Energy Carolinas, LLC as Investor Owned, a shareholder-owned company whose retail rates are set through a state regulatory commission. Nationally, Investor Owned utilities averaged 17.36¢ per kWh in the 2024 release.

What this page does and does not tell you

  • An average across bundled residential customers for the year, revenue divided by sales, not a rate schedule.
  • Form 861 presence is not evidence of availability at an address or of customer choice.

See our methodology, why energy prices vary and understanding rate structures.

Source: U.S. Energy Information Administration (EIA), Form 861 annual electric power industry report, 2024 release. Retrieved and formatted by RateWatt.

Disclaimer: This information is provided for informational purposes only and does not constitute professional or financial advice. Data is sourced from the U.S. Energy Information Administration (EIA). Rates change and averages do not describe any individual account. Consult your utility or a qualified professional before making decisions based on this data.

Every figure on RateWatt is rendered directly from official U.S. Energy Information Administration (EIA) data, no number is typed in by an editor. Average price, customers and sales are reported by EIA Form 861 (2024). Per-customer annual usage, the implied annual bill, the customer-weighted state average and every percentage difference are RateWatt's arithmetic on those reported columns. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2025.