County annual report · FIPS 45089
2024 Williamsburg County, SC Power Outage Report
In 2024, customers in Williamsburg County, SC went without power for an average of 7.5 hours, a total of 161K customer-hours (South Carolina average 50.1 hours). That ranks 33rd worst of 46 South Carolina counties and 1177th of 2,990 nationally.
Compared with SC, the US and 2023
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Williamsburg County, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 27, 2024 06:30 | September 29, 2024 02:30 | 1d 20h | 6,613 | 66K |
| 2 | January 9, 2024 13:30 | January 10, 2024 23:45 | 1d 10h | 4,083 | 46K |
| 3 | September 26, 2024 21:45 | September 27, 2024 05:30 | 7h 45m | 2,460 | 7,577 |
| 4 | July 6, 2024 02:15 | July 6, 2024 04:00 | 1h 45m | 1,232 | 1,060 |
| 5 | July 12, 2024 15:45 | July 13, 2024 00:00 | 8h 15m | 1,158 | 833 |
| 6 | January 19, 2024 23:00 | January 20, 2024 03:00 | 4h | 887 | 2,274 |
| 7 | January 4, 2024 06:00 | January 4, 2024 11:00 | 5h | 727 | 1,478 |
| 8 | July 16, 2024 16:30 | July 17, 2024 04:30 | 12h | 650 | 2,039 |
| 9 | October 2, 2024 05:30 | October 2, 2024 06:45 | 1h 15m | 545 | 169 |
| 10 | July 15, 2024 17:15 | July 16, 2024 05:15 | 12h | 532 | 844 |
Outage episodes by size in 2024: 51 reached 100+ customers, 5 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Williamsburg County reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Duke Energy Progress - (NC) | 2024 | 17.2 hrs | 1.70 | 2.2 hrs | 1.22 |
| Santee Electric Coop, Inc | 2024 | 7.4 hrs | - | 2.5 hrs | - |
| Duke Energy | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of South Carolina's customers in 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 21,455 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Williamsburg County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Williamsburg County, SC annual power outage report, 2024, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2024/south-carolina/williamsburg-county