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Duke Energy Carolinas, LLC
Duke Energy Carolinas, LLC served 582,062 residential customers in South Carolina in 2025 (22.1% of the state's residential customers), the 2nd largest of 29 utilities reporting there. Bundled service; ownership: investor owned; balancing authority DUK.
The meter, one average month.
Scroll to run 30 days of Duke Energy Carolinas, LLC's average residential use through a five-dial register.
- Used so far
- 1,051 kWh
- At 13.47¢/kWh
- $142
Price ruler0 to 50¢ per kWh
Where 13.47¢ sits.
Duke Energy Carolinas, LLC averaged 13.47¢ per kWh against a South Carolina residential average of 14.96¢: 10% below the state figure. Among the 4 investor owned utilities in South Carolina with bundled residential sales, it ranks 1st from the lowest price.
2020 and 2025EIA-861
Five years, same meter.
In 2020 the average Duke Energy Carolinas, LLC home used 1,063 kWh a month at 11.48¢ and paid $122. In 2025 it used 1,051 kWh at 13.47¢ and paid $142: the price per kWh is up 17.3%.
| Measure | 2020 | 2025 |
|---|---|---|
| Price, ¢/kWh | 11.48 | 13.47 |
| Use, kWh a month | 1,063 | 1,051 |
| Bill, US$ a month | 122.02 | 141.55 |
| Class | Customers | MWh sold | ¢/kWh |
|---|---|---|---|
| Residential | 582,062 | 7,340,837 | 13.47 |
| Commercial | 104,016 | 6,228,631 | 9.68 |
| Industrial | 1,464 | 8,066,419 | 6.52 |
Who else is on the line
Homes are one class.
Homes took 33.9% of the electricity Duke Energy Carolinas, LLC sold in South Carolina in 2025.
Rooftop solar on its linesnet metering
12,789 roofs.
- Residential net-metered PV
- 12,789installations reported for 2025
- Capacity
- 102.2 MWresidential, net metered
- Per 1,000 homes
- 22.0installations per 1,000 residential customers
Service territoryEIA-861
19 counties.
AbbevilleAndersonCherokeeChesterEdgefieldFairfieldGreenvilleGreenwoodKershawLancasterLaurensMcCormickNewberryOconeePickensSaludaSpartanburgUnionYork
Counties in South Carolina where Duke Energy Carolinas, LLC reported serving customers in 2025 (19 in all; up to 24 listed).
EIA-8612025Utility 5416
The filing, line by line.
| Measure | Value | Unit |
|---|---|---|
| Average price | 13.47 | ¢/kWh |
| South Carolina average price | 14.96 | ¢/kWh |
| Difference from state average | -10.0 | % |
| Price change over 5 years | 17.3 | % |
| Typical monthly use | 1,051 | kWh |
| Typical monthly bill | 141.55 | US$ |
| Residential customers | 582,062 | accounts |
| Share of SC residential customers | 22.1 | % |
| Size rank in SC | 2 of 29 | by customers |
| Price rank, investor owned peers | 1 of 4 | 1 = lowest |
Rate plans on fileOpenEI URDB
None shown for this page. Plan counts appear once per utility, on its largest state's bundled page; how plans are counted.
South Carolina: state average, five-year steps and every provider