South Carolina Public Service Authority: power outages per year
In 2025 the average South Carolina Public Service Authority customer was without power for 0.7 hours, less than the South Carolina average of 2.5 h; down from 1.0 h in 2024. The utility served 215,561 customers in South Carolina and ranks #6 of 6 large South Carolina utilities by outage hours.
By year
| Year | Hours (with major events) | Hours (without) | Interruptions | Customers |
|---|---|---|---|---|
| 2025 | 0.7 | 0.7 | 0.7 | 215,561 |
| 2024 | 1.0 | 0.9 | 0.7 | 211,845 |
| 2023 | 1.1 | 0.8 | 0.8 | 205,216 |
| 2022 | 3.7 | 0.4 | 1.2 | 198,193 |
| 2021 | 2.2 | 0.3 | 0.8 | 184,242 |
| 2020 | 0.8 | 0.4 | 0.6 | 188,318 |
"With major events" includes storm days that utilities may exclude from their own reliability targets; it is what customers actually live through. The gap between the two columns shows how much of the year's outage time came from big storms.
Backup power for South Carolina Public Service Authority outages
An average outage here lasted about 1.0 hours in 2025. Size backup for the longest outage you want to ride through, not the average.
Other large utilities in South Carolina
FAQ
How many hours a year are South Carolina Public Service Authority customers without power?
0.7 hours per customer in 2025 including major event days (0.7 h without them), as South Carolina Public Service Authority reported to the U.S. EIA.
How long does a typical South Carolina Public Service Authority outage last?
About 1.0 hours on average in 2025 (total outage minutes divided by the number of interruptions). Storms make single events much longer.
Source: U.S. EIA Form 861, Reliability file, 2020–2025. Data snapshot . Utilities ranked nationwide →