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
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
| Benchmark | Price / kWh | Difference |
|---|---|---|
| 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
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.
| 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.