Electricity rates — Duke Energy Carolinas, LLC (South Carolina)
Duke Energy Carolinas, LLC (South Carolina)'s customers paid 14.0¢ per kWh in 2024, riders included (EIA-861): about $144 a month for 1,026 kWh. Residential - RS (SC), the lowest of 1 open plan at 1,000 kWh a month, comes to $1,757 a year. Schedule retrieved October 8, 2026.
Every priced Duke Energy Carolinas, LLC (South Carolina) plan, 1,000 kWh/mo
| Plan | Per year | vs cheapest | Effective |
|---|---|---|---|
| Residential - RS (SC)✓ cheapesttiered · in effect since November 2025 | $1,756.80 | — | 14.6¢ |
| Priced but not ranked — restricted, older, or not verifiable as a bill | |||
| Residential Service Energy Star All-Electric EStiered · in effect since November 2025 · needs an all-electric home | $1,552.20 | −$204.60 | 12.9¢ |
| Residential Electric Water Heating and Space Conditioning - REtiered · in effect since November 2025 · needs electric heating | $1,633.08 | −$123.72 | 13.6¢ |
| Residential Service Energy Star Standard EStiered · in effect since November 2025 · needs qualifying appliances | $1,669.80 | −$87.00 | 13.9¢ |
| Residential Service RB; Closed Ratetiered · in effect since January 2024 · closed to new customers | $1,765.68 | +$8.88 | 14.7¢ |
Price Duke Energy Carolinas, LLC (South Carolina)’s plans at your own usage — and see what moving from your current plan would save.
What the one Duke Energy Carolinas, LLC (South Carolina) plan ranked here costs at each level of use
- 500 kWh/mo — $950.16 (Residential - RS (SC)), the one plan ranked here
- 1,000 kWh/mo — $1,756.80 (Residential - RS (SC)), the one plan ranked here
- 2,000 kWh/mo — $3,457.08 (Residential - RS (SC)), the one plan ranked here
What a typical Duke Energy Carolinas, LLC (South Carolina) bill costs
At 1,000 kWh a month one plan here is open to any household — Residential - RS (SC), at $1,756.80 a year. There is no cheaper option to move to, only the restricted schedules priced below.
Effective rates come to 14.6¢ per kWh at that usage.
What Duke Energy Carolinas, LLC (South Carolina)'s customers were billed in 2024
Priced at 1,026 kWh a month, what Duke Energy Carolinas, LLC (South Carolina)'s customers used on average, its open plans come within 5% of what EIA reports they were billed in 2024: the plans here describe its bills well.
| Ownership, as EIA classes it | Investor-owned |
|---|---|
| Full-service homes in South Carolina | 568,586 |
| Share of South Carolina's households | 22% |
| Average use per home | 1,026 kWh a month |
| Average bill per home | $143.51 a month |
| Billed per kWh, riders included | 14.0¢ |
| Median open plan here, at that use | 14.6¢ |
Duke Energy Carolinas, LLC in U.S. Energy Information Administration, Form EIA-861, 2024 (Sales_Ult_Cust_2024.xlsx), retrieved September 23, 2026.
How the Residential - RS (SC) bill at 1,000 kWh has moved since 2014
Duke Energy Carolinas, LLC (South Carolina)'s Residential - RS (SC) cost $110.46 a month under its January 2014 version, filed then as Residential - RS, and costs $146.40 under its November 2025 one, 33% more. Its biggest single step, in October 2022, added $13.97 (12%). In South Carolina, EIA's average price rose 20% between 2014 and 2025.
Every version of Residential - RS (SC)
| Took effect | At 1,000 kWh | Change | Record |
|---|---|---|---|
| November 2025 | $146.40 | −$0.16 (−0.1%) | URDB |
| January 2024 | $146.56 | +$14.85 (+11.3%) | URDB |
| October 2022 | $131.71 | +$13.97 (+11.9%) | URDB |
| January 2019 | $117.74 | +$3.88 (+3.4%) | URDB |
| January 2018 | $113.86 | +$3.19 (+2.9%) | URDB |
| January 2017 | $110.67 | −$5.90 (−5.1%) | URDB |
| January 2016as Residential - RS | $116.57 | +$6.11 (+5.5%) | URDB |
| January 2014as Residential - RS | $110.46 | First on record | URDB |
In the guides: Why electricity rates change
How it compares
Among the 100 utilities indexed, Duke Energy Carolinas, LLC (South Carolina)'s cheapest open plan is the 42nd-lowest, 5% less than their median of $1,849.47. It sits between PacifiCorp (Wyoming) ($1,751.88) and Nashville Electric Service ($1,757.60).
No other utility indexed in South Carolina has a cheaper open plan; the other 3 all start higher.
Residential - RS (SC) is tiered: past 1,000 kWh a month, each kWh costs 0.7¢ more. Of the 47 utilities whose plans step, that is the 8th-smallest step.
In the guides: The price that changes once the meter passes a line
Which plan from Duke Energy Carolinas, LLC (South Carolina) is cheapest as use rises
Residential - RS (SC) is cheapest at every level tested — $950.16 a year at 500 kWh a month, $3,457.08 at 2,000 kWh.
Cheapest 5 plans at 1,000 kWh a month
Residential - RS (SC) — $1,756.80 a year, 14.6¢ per kWh effective, tiered. It carries a $11.96 monthly standing charge. In effect since November 2025.
Residential Service Energy Star All-Electric ES — $1,552.20 a year, 12.9¢ per kWh effective, tiered. It carries a $11.96 monthly standing charge. In effect since November 2025. Restricted: needs an all-electric home.
Residential Electric Water Heating and Space Conditioning - RE — $1,633.08 a year, 13.6¢ per kWh effective, tiered. It carries a $11.96 monthly standing charge. In effect since November 2025. Restricted: needs electric heating.
Residential Service Energy Star Standard ES — $1,669.80 a year, 13.9¢ per kWh effective, tiered. It carries a $11.96 monthly standing charge. In effect since November 2025. Restricted: needs qualifying appliances.
Residential Service RB; Closed Rate — $1,765.68 a year, 14.7¢ per kWh effective, tiered. It carries a $12.96 monthly standing charge. In effect since January 2024. Restricted: closed to new customers.
How Duke Energy Carolinas, LLC (South Carolina)'s plans are structured
Of 6 priceable plans: 5 tiered, 1 time-of-use, 1 with demand charges.
Fixed monthly charges run from $11.96 to $13.09.
Duke Energy Carolinas, LLC (South Carolina)'s published schedules
URDB files Duke Energy Carolinas, LLC (South Carolina)'s schedules under South Carolina, and they are compared there with that state's other utilities. 6 of its 6 published residential schedules can be priced.
What the Duke Energy Carolinas, LLC (South Carolina) figures do not cover
One of these plans prices by the hour; its figure assumes the typical hourly pattern of homes in South Carolina, not this household's own hours.