County annual report · FIPS 45011
2022 Barnwell County, SC Power Outage Report
In 2022, customers in Barnwell County, SC went without power for an average of 5.4 hours, a total of 58K customer-hours (South Carolina average 4.4 hours). That ranks 20th worst of 46 South Carolina counties and 1323rd of 2,976 nationally.
Compared with SC, the US and 2021
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Barnwell County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 6, 2022 21:15 | May 8, 2022 00:45 | 1d 3h | 4,125 | 20K |
| 2 | July 13, 2022 16:00 | July 13, 2022 22:45 | 6h 45m | 3,854 | 4,885 |
| 3 | June 14, 2022 14:45 | June 15, 2022 02:00 | 11h 15m | 2,053 | 3,436 |
| 4 | July 30, 2022 20:00 | July 30, 2022 23:30 | 3h 30m | 1,719 | 1,837 |
| 5 | July 8, 2022 19:15 | July 8, 2022 21:15 | 2h | 1,457 | 1,491 |
| 6 | June 17, 2022 22:00 | June 18, 2022 07:00 | 9h | 1,229 | 5,313 |
| 7 | January 3, 2022 09:00 | January 4, 2022 21:30 | 1d 12h | 1,043 | 6,341 |
| 8 | August 11, 2022 01:30 | August 11, 2022 06:45 | 5h 15m | 660 | 1,139 |
| 9 | March 7, 2022 19:00 | March 7, 2022 23:00 | 4h | 528 | 1,350 |
| 10 | June 24, 2022 00:00 | June 24, 2022 12:15 | 12h 15m | 524 | 733 |
Outage episodes by size in 2022: 27 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 Barnwell County reported on EIA Form 861 for 2022, 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 | 2022 | 3.9 hrs | 1.93 | 78 min | 1.07 |
| Aiken Electric Coop Inc | 2022 | 3.5 hrs | - | 2.0 hrs | - |
| Edisto Electric Coop, Inc | 2022 | 14.0 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 99% of South Carolina's customers in 2022; 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, 2022, 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/2022/south-carolina/barnwell-county