County annual report · FIPS 45065
2024 McCormick County, SC Power Outage Report
In 2024, customers in McCormick County, SC went without power for an average of 303.2 hours, a total of 1.2M customer-hours (South Carolina average 50.1 hours). That ranks 1st worst of 46 South Carolina counties and 21st 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 McCormick 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 05:00 | October 12, 2024 18:30 | 15d 13h | 6,369 | 1.2M |
| 2 | November 5, 2024 12:45 | November 5, 2024 21:45 | 9h | 3,218 | 11K |
| 3 | July 1, 2024 14:45 | July 1, 2024 20:00 | 5h 15m | 1,945 | 7,639 |
| 4 | July 18, 2024 21:30 | July 19, 2024 04:00 | 6h 30m | 1,656 | 2,163 |
| 5 | August 29, 2024 19:15 | August 29, 2024 20:30 | 1h 15m | 1,548 | 1,689 |
| 6 | January 9, 2024 14:00 | January 10, 2024 04:00 | 14h | 1,223 | 2,584 |
| 7 | May 24, 2024 22:45 | May 25, 2024 09:30 | 10h 45m | 1,198 | 5,681 |
| 8 | September 18, 2024 18:30 | September 18, 2024 19:45 | 1h 15m | 972 | 615 |
| 9 | October 16, 2024 14:45 | October 16, 2024 15:00 | 15m | 970 | 243 |
| 10 | April 11, 2024 06:30 | April 11, 2024 12:30 | 6h | 547 | 1,524 |
Outage episodes by size in 2024: 39 reached 100+ customers, 7 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 McCormick 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 Carolinas, LLC | 2024 | 78.6 hrs | 2.50 | 2.9 hrs | 1.26 |
| Dominion Energy South Carolina, Inc | 2024 | 31.8 hrs | 2.52 | 81 min | 1.19 |
| Aiken Electric Coop Inc | 2024 | 132.4 hrs | - | 1.6 hrs | - |
| Little River Electric Coop Inc | - | - | - | - | - |
| Town of McCormick - (SC) | - | - | - | - | - |
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 ÷ 4,091 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. McCormick County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), McCormick 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/mccormick-county