Electricity rates — Duke Energy Carolinas, LLC (South Carolina)
A household served by Duke Energy Carolinas, LLC (South Carolina) using 1,000 kWh a month pays about $1,756.80 a year on the cheapest of 1 generally available plan — Residential - RS (SC) from Duke Energy Carolinas, LLC (South Carolina). Rates checked September 2, 2026. A further 4 schedules are published but restricted — means-tested, closed to new customers, or needing particular equipment — and they are priced further down.
Every priced plan, 1,000 kWh/mo
| Plan | Per year | vs cheapest | Effective |
|---|---|---|---|
| Residential Service Energy Star All-Electric EStiered · needs an all-electric home | $1,552.20 | −$204.60 | 12.9¢ |
| Residential Electric Water Heating and Space Conditioning - REtiered · needs electric heating | $1,633.08 | −$123.72 | 13.6¢ |
| Residential Service Energy Star Standard EStiered · needs qualifying appliances | $1,669.80 | −$87.00 | 13.9¢ |
| Residential - RS (SC)✓ cheapesttiered | $1,756.80 | — | 14.6¢ |
| Residential Service RB; Closed Ratetiered · closed to new customers | $1,765.68 | +$8.88 | 14.7¢ |
Cost across usage levels
The cheapest plan at each consumption level, showing whether the ranking holds as usage changes.
- 500 kWh/mo — cheapest $950.16 (Residential - RS (SC)), dearest $950.16
- 1,000 kWh/mo — cheapest $1,756.80 (Residential - RS (SC)), dearest $1,756.80
- 2,000 kWh/mo — cheapest $3,457.08 (Residential - RS (SC)), dearest $3,457.08
What a typical bill costs
At 1,000 kWh a month the 5 priceable plans here run from $1,756.80 on Residential - RS (SC) to $1,756.80 on Residential - RS (SC), with a median of $1,756.80.
Effective rates, bill divided by kilowatt-hours, span 14.6¢ to 14.6¢ per kWh at that usage.
How the answer changes with usage
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 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.
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.
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.
Residential - RS (SC) — $1,756.80 a year, 14.6¢ per kWh effective, tiered. It carries a $11.96 monthly standing charge.
Residential Service RB; Closed Rate — $1,765.68 a year, 14.7¢ per kWh effective, tiered. It carries a $12.96 monthly standing charge.
How these 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.
Who provides these plans
Duke Energy Carolinas, LLC (South Carolina) was found serving Charlotte, North Carolina. 6 of its 6 published residential schedules can be priced.
What this does not cover
1 of these plan price by hour. WattClear does not know which hours a household uses, so those estimates carry lower confidence and say so on the figure.
New to these terms? The methodology page explains tiered bands, time-of-use periods and fixed charges, and sets out exactly what the rate engine assumes.
Estimate — your actual bill may differ.
Tariff structures from NREL/OpenEI Utility Rate Database (CC0 1.0), retrieved September 2, 2026.
Location resolved through the US Census Bureau Geocoder (Public domain) at 35.2271, -80.8431.