County annual report · FIPS 45011
2020 Barnwell County, SC Power Outage Report
In 2020, customers in Barnwell County, SC went without power for an average of 11.4 hours, a total of 121K customer-hours (South Carolina average 5.7 hours). That ranks 8th worst of 46 South Carolina counties and 698th of 3,019 nationally.
Compared with SC, the US and 2019
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Barnwell County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 13, 2020 12:45 | April 15, 2020 19:30 | 2d 6h | 7,897 | 97K |
| 2 | September 20, 2020 04:45 | September 20, 2020 07:00 | 2h 15m | 2,060 | 4,635 |
| 3 | May 25, 2020 00:45 | May 25, 2020 01:00 | 15m | 1,751 | 438 |
| 4 | December 8, 2020 10:15 | December 8, 2020 13:15 | 3h | 1,041 | 2,046 |
| 5 | June 28, 2020 00:30 | June 28, 2020 12:00 | 11h 30m | 856 | 4,011 |
| 6 | June 10, 2020 21:15 | June 10, 2020 22:45 | 1h 30m | 850 | 1,063 |
| 7 | June 29, 2020 11:30 | June 29, 2020 16:30 | 5h | 591 | 1,276 |
| 8 | December 11, 2020 22:30 | December 12, 2020 00:00 | 1h 30m | 485 | 728 |
| 9 | May 20, 2020 14:15 | May 20, 2020 15:00 | 45m | 433 | 217 |
| 10 | August 20, 2020 02:15 | August 20, 2020 03:15 | 1h | 424 | 424 |
Outage episodes by size in 2020: 28 reached 100+ customers, 4 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 2020, 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 | 2020 | 2.4 hrs | 1.40 | 88 min | 1.17 |
| Aiken Electric Coop Inc | 2020 | 3.4 hrs | - | 1.8 hrs | - |
| Edisto Electric Coop, Inc | 2020 | 10.8 hrs | - | 3.7 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 2020; 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, 2020, 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/2020/south-carolina/barnwell-county