County annual report · FIPS 45011
2024 Barnwell County, SC Power Outage Report
In 2024, customers in Barnwell County, SC went without power for an average of 35.4 hours, a total of 376K customer-hours (South Carolina average 50.1 hours). That ranks 20th worst of 46 South Carolina counties and 274th 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 Barnwell 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 | October 8, 2024 23:30 | 11d 17h | 6,437 | 357K |
| 2 | July 17, 2024 17:30 | July 17, 2024 19:30 | 2h | 3,259 | 2,430 |
| 3 | December 1, 2024 04:30 | December 1, 2024 07:30 | 3h | 1,732 | 3,974 |
| 4 | January 9, 2024 15:30 | January 10, 2024 01:15 | 9h 45m | 705 | 716 |
| 5 | August 8, 2024 15:45 | August 8, 2024 20:15 | 4h 30m | 522 | 213 |
| 6 | April 21, 2024 19:15 | April 21, 2024 21:30 | 2h 15m | 511 | 656 |
| 7 | April 12, 2024 15:15 | April 12, 2024 17:00 | 1h 45m | 456 | 120 |
| 8 | March 28, 2024 14:15 | March 28, 2024 16:15 | 2h | 443 | 334 |
| 9 | April 11, 2024 11:00 | April 12, 2024 00:30 | 13h 30m | 435 | 2,073 |
| 10 | July 1, 2024 01:00 | July 1, 2024 07:00 | 6h | 366 | 843 |
Outage episodes by size in 2024: 25 reached 100+ customers, 3 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 Barnwell 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 |
|---|---|---|---|---|---|
| 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 | - |
| Edisto Electric Coop, Inc | 2024 | 39.2 hrs | - | 4.9 hrs | - |
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 ÷ 10,628 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. Barnwell County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Barnwell 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/barnwell-county