Duke Energy Carolinas electric rates
Updated October 7, 2026 · Source: EIA Form 861 (2024), 2025 SC base rate case
Investor-owned utility serving 568,586 homes in South Carolina.
Your rate
Estimate your bill
It's on your bill, usually near the top. Starting at 1,026 kWh, the average for Duke Energy Carolinas homes.
This is an estimate. Uses the EIA average rate with a nominal $12 fixed charge; real tariffs have tiers, time-of-use pricing and riders. Your bill also includes taxes and fuel adjustments that change month to month.
Rate cases
| Docket | Status | Filed | Requested | Approved | Effective |
|---|---|---|---|---|---|
| 2025 SC base rate case | Approved | July 3, 2025 | — | August 1, 2026 |
2025 SC base rate case: Two-step increase: roughly $12/month from Aug 2025 and a further $6/month from Aug 2026 for a 1,000 kWh Upstate customer. Source
Rate history
Duke Energy Carolinas's average rate is up 22% since 2020, versus +28% for the U.S. average.
Average residential revenue per kWh, EIA-861. Includes delivery and, where the utility sells it, supply.
Rebates for heat pumps, batteries and EV chargers
We haven't found utility-level rebates for Duke Energy Carolinas yet. Check South Carolina programs or read what's left after the federal credits ended.
About Duke Energy Carolinas
- Legal name
- Duke Energy Carolinas, LLC (Duke Energy)
- Ownership
- Investor Owned
- Homes served
- 568,586 residential customers (2024)
- Grid operator
- DUK
- Retail choice
- No — one bundled rate
- Data
- EIA-861 2024, released October 7, 2026; rate cases checked October 7, 2026
Other utilities in South Carolina
- Dominion Energy South Carolina 14.59¢
- South Carolina Public Service Authority 11.38¢
- Duke Energy Progress 14.88¢
- Berkeley Electric Coop 14.93¢
- Horry Electric Coop 13.23¢
- Palmetto Electric Coop 12.79¢
- Blue Ridge Electric Coop 18.94¢
- York Electric Coop 12.65¢