South Carolina Public Service Authority Electricity Rates and Average Bill (South Carolina)
Data through May 2026 (the latest month EIA has published) · Updated August 14, 2026
As of May 2026, South Carolina Public Service Authority's residential customers in South Carolina paid an average effective rate of 16.47¢/kWh with an average monthly bill of $113.36, per EIA Form 861-M data. That rate is 0.3¢ above the South Carolina average of 16.18¢/kWh; the U.S. average is 18.44¢/kWh.
Rate trend vs the South Carolina average
View this chart as a table (last 12 months)
| Month | Rate (¢/kWh) | Avg bill ($/mo) | Avg usage (kWh/mo) |
|---|---|---|---|
| June 2025 | 12.40 | 133.53 | 1077 |
| July 2025 | 11.84 | 183.93 | 1553 |
| August 2025 | 12.28 | 159.74 | 1301 |
| September 2025 | 14.66 | 119.84 | 817 |
| October 2025 | 15.34 | 113.35 | 739 |
| November 2025 | 16.52 | 89.78 | 544 |
| December 2025 | 13.87 | 138.22 | 997 |
| January 2026 | 13.03 | 144.51 | 1109 |
| February 2026 | 12.67 | 174.73 | 1379 |
| March 2026 | 17.59 | 115.26 | 655 |
| April 2026 | 17.87 | 104.45 | 585 |
| May 2026 | 16.47 | 113.36 | 688 |
South Carolina Public Service Authority vs South Carolina vs the U.S.
| South Carolina Public Service Authority | South Carolina | U.S. average | |
|---|---|---|---|
| Rate (May 2026) | 16.47¢/kWh | 16.18¢/kWh | 18.44¢/kWh |
| Average monthly bill | $113.36 | $148.05 | $135.70 |
| Average monthly usage | 688 kWh | 915 kWh | 736 kWh |
| Rate change, 1 year | +16.7% | +5.0% | +6.2% |
Estimate a bill at South Carolina Public Service Authority rates
Worked example: 1,000 kWh at South Carolina Public Service Authority's average effective rate of 16.47¢/kWh is about $164.70. The utility's actual average usage is 688 kWh/month, which produces the $113.36 average bill. This is an all-in average (energy, delivery, fixed charges, riders); your tariff's marginal price will differ.
See the full South Carolina rate trend, look up another utility by ZIP code, or read why electric bills are rising.
Source: EIA Form 861-M (monthly utility-level sales to ultimate customers, residential), published with roughly a two-month lag. Rate = revenue ÷ sales; bill = revenue ÷ customers. Months failing basic sanity screens are excluded. See methodology.