County annual report · FIPS 45011
2018 Barnwell County, SC Power Outage Report
In 2018, customers in Barnwell County, SC went without power for an average of 6.3 hours, a total of 67K customer-hours (South Carolina average 5.2 hours). That ranks 14th worst of 46 South Carolina counties and 865th of 2,798 nationally.
Compared with SC, the US and 2017
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Barnwell County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 11, 2018 04:30 | October 13, 2018 01:30 | 1d 21h | 3,500 | 28K |
| 2 | June 23, 2018 04:15 | June 23, 2018 12:45 | 8h 30m | 2,049 | 16K |
| 3 | April 15, 2018 18:00 | April 16, 2018 00:30 | 6h 30m | 1,422 | 5,608 |
| 4 | February 18, 2018 05:15 | February 18, 2018 06:30 | 1h 15m | 787 | 501 |
| 5 | September 8, 2018 12:45 | September 8, 2018 14:45 | 2h | 574 | 611 |
| 6 | June 16, 2018 11:45 | June 16, 2018 12:15 | 30m | 536 | 268 |
| 7 | June 11, 2018 14:30 | June 11, 2018 23:30 | 9h | 505 | 3,185 |
| 8 | January 11, 2018 11:45 | January 11, 2018 13:30 | 1h 45m | 440 | 749 |
| 9 | June 11, 2018 02:30 | June 11, 2018 09:15 | 6h 45m | 412 | 742 |
| 10 | September 13, 2018 14:45 | September 13, 2018 15:00 | 15m | 411 | 103 |
Outage episodes by size in 2018: 31 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 2018, 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 | 2018 | 2.8 hrs | 1.80 | 1.6 hrs | 1.37 |
| Aiken Electric Coop Inc | 2018 | 4.0 hrs | - | 90 min | - |
| Edisto Electric Coop, Inc | 2018 | 3.3 hrs | - | 74 min | - |
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 2018; 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, 2018, 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/2018/south-carolina/barnwell-county