States › South Carolina › September 2025
South Carolina electricity prices, September 2025
Average price, sales and bills for the month against the same month a year earlier and the US. Preliminary
In September 2025, residential customers in South Carolina paid an average of 15.34¢ per kilowatthour, up 3.7% on the same month a year earlier (14.79¢). The US average for the month was 18.08¢; South Carolina was 15% below that. It ranked 31st highest among the 50 states and the District of Columbia.
Residential sales were 2,693,175 MWh, down 1.1% on a year earlier, and the average residential bill for the month was $156.83 on 1,022 kWh. Weather moves monthly sales far more than prices do, so bills swing with the season.
EIA marks this month as preliminary. Preliminary months come from the Form EIA-861M sample and are revised when the annual census is complete.
Average price is revenue divided by sales for the sector and year; it is not a tariff rate. Reliability figures are as reported by utilities to EIA on Form 861 and may use different calculation methods. Monthly figures come from the Form EIA-861M sample and are revised when EIA finalises the year.
Price by sector
| Sector | Sep 2025 | Sep 2024 | Change | US, Sep 2025 |
|---|---|---|---|---|
| Residential | 15.34¢ | 14.79¢ | +3.7% | 18.08¢ |
| Commercial | 10.96¢ | 10.84¢ | +1.1% | 13.99¢ |
| Industrial | 7.07¢ | 7.17¢ | -1.4% | 9.02¢ |
| All sectors | 11.45¢ | 11.30¢ | +1.3% | 14.21¢ |
Sales and customers
| Measure | Sep 2025 | Sep 2024 | Change |
|---|---|---|---|
| Residential sales | 2.7 TWh | 2.7 TWh | -1.1% |
| Sales, all sectors | 7.2 TWh | 7 TWh | +2.1% |
| Residential customers | 2,634,377 | 2,592,082 | +1.6% |
| Average residential bill | $156.83 | $155.35 | +1.0% |
| Average residential use, kWh | 1,022 | 1,050 | -2.7% |
| US residential price | 18.08¢ | 16.82¢ | +7.5% |
The two years to September 2025
South Carolina residentialUS residential
Questions and answers
What was the average electricity price in South Carolina in September 2025?
15.34¢ per kilowatthour for residential customers, 10.96¢ for commercial and 7.07¢ for industrial customers. EIA marks the month as preliminary.
How does that compare with a year earlier?
The residential average was 14.79¢ in September 2024, a change of +3.7%. Residential sales changed by -1.1% over the same period.
What was the average residential bill that month?
$156.83, on average use of 1,022 kWh. This is residential revenue divided by residential customers for the month.
Provenance
Source: U.S. Energy Information Administration, Form EIA-861M sales and revenue workbook (state by sector and month), status "Preliminary" for this month, series published through July 2026. Public domain. Price = revenue ÷ sales; bill = residential revenue ÷ residential customers. Utility-level annual figures are on the South Carolina page.