South Carolina · State
South Carolina Public Service Authority
12.91¢ per kWh, bundled, EIA-861 2025. Average bill $123.85 at 959.1 kWh a month, across 188,962 customers on that row.
South Carolina averaged 15.12¢/kWh and $161.21 a month. The United States averaged 17.23¢/kWh and $150.68. State and national figures come from EIA's Average Bill file.
Revenue divided by sales, EIA-861 Sales to Ultimate Customers, 2025, released October 7, 2026. Texas wires utilities come from the Delivery Companies file. The price and bill use bundled service. Customer count: 188,962, the largest residential count across service types.
Estimate a bill
The figure below is this utility's 2025 EIA residential average.
2025 EIA average
$129.10
12.91¢/kWh × 1,000 kWh. Bundled residential average, EIA-861 2025. The customer charge is already folded into this average, so it stands beside a tariff total rather than being added to it.
Annual history
| Year | ¢/kWh | Avg. bill | Avg. kWh | Customers |
|---|---|---|---|---|
| 2015 | 10.96¢ | $112.30 | 1,024.6 | 145,208 |
| 2016 | 11.62¢ | $118.60 | 1,021.0 | 147,447 |
| 2017 | 11.98¢ | $115.44 | 963.4 | 151,044 |
| 2018 | 11.77¢ | $123.05 | 1,045.0 | 154,586 |
| 2019 | 11.52¢ | $114.17 | 990.8 | 158,032 |
| 2020 | 11.44¢ | $108.89 | 952.1 | 160,917 |
| 2021 | 11.32¢ | $113.19 | 1,000.1 | 166,043 |
| 2022 | 11.33¢ | $109.58 | 967.2 | 170,536 |
| 2023 | 11.38¢ | $106.68 | 937.1 | 177,342 |
| 2024 | 11.38¢ | $107.52 | 944.6 | 185,529 |
| 2025 | 12.91¢ | $123.85 | 959.1 | 188,962 |
EIA-861, 2015–2025, using the same service type as the 2025 figure. A blank year means that service was not in the file.
Counties
Berkeley, Georgetown, Horry.
EIA-861 Service Territory, 2025. A listed county is the county EIA recorded. It does not mean every address in the county is served. Open this utility in the bill calculator · Rate history tool