County annual report · FIPS 45051
2024 Horry County, SC Power Outage Report
In 2024, customers in Horry County, SC went without power for an average of 1.5 hours, a total of 382K customer-hours (South Carolina average 50.1 hours). That ranks 45th worst of 46 South Carolina counties and 2568th 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 Horry 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 30, 2024 12:30 | October 1, 2024 01:00 | 12h 30m | 33,305 | 28K |
| 2 | September 26, 2024 22:45 | September 28, 2024 19:15 | 1d 20h | 10,426 | 43K |
| 3 | August 18, 2024 22:00 | August 19, 2024 08:15 | 10h 15m | 8,306 | 7,281 |
| 4 | August 21, 2024 11:45 | August 22, 2024 00:15 | 12h 30m | 6,930 | 9,948 |
| 5 | November 6, 2024 14:00 | November 7, 2024 00:00 | 10h | 6,461 | 13K |
| 6 | August 5, 2024 19:45 | August 7, 2024 10:15 | 1d 14h | 5,985 | 9,081 |
| 7 | October 1, 2024 02:00 | October 1, 2024 04:00 | 2h | 5,378 | 8,121 |
| 8 | June 5, 2024 13:45 | June 10, 2024 16:30 | 5d 2h | 5,037 | 13K |
| 9 | August 24, 2024 23:00 | August 25, 2024 01:00 | 2h | 4,839 | 3,635 |
| 10 | September 15, 2024 17:15 | September 16, 2024 04:15 | 11h | 4,738 | 12K |
Outage episodes by size in 2024: 162 reached 100+ customers, 55 reached 1,000+ customers, 2 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 Horry 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 |
| South Carolina Public Service Authority | 2024 | 58 min | 0.69 | 55 min | 0.65 |
| Horry Electric Coop Inc | 2024 | 2.2 hrs | 1.85 | 1.8 hrs | 1.56 |
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 ÷ 259,189 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. Horry County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Horry 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/horry-county