County annual report · FIPS 45003
2023 Aiken County, SC Power Outage Report
In 2023, customers in Aiken County, SC went without power for an average of 2.6 hours, a total of 204K customer-hours (South Carolina average 2.7 hours). That ranks 28th worst of 46 South Carolina counties and 2092nd of 2,977 nationally.
Compared with SC, the US and 2022
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Aiken County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 21, 2023 00:30 | July 23, 2023 00:45 | 2d | 9,171 | 61K |
| 2 | August 7, 2023 21:30 | August 9, 2023 03:00 | 1d 5h | 2,710 | 4,506 |
| 3 | April 30, 2023 08:30 | May 1, 2023 03:45 | 19h 15m | 2,576 | 3,456 |
| 4 | September 13, 2023 00:15 | September 13, 2023 09:15 | 9h | 2,297 | 5,074 |
| 5 | May 22, 2023 08:15 | May 22, 2023 23:00 | 14h 45m | 2,285 | 1,846 |
| 6 | October 14, 2023 01:00 | October 14, 2023 01:15 | 15m | 2,249 | 562 |
| 7 | August 27, 2023 21:00 | August 29, 2023 02:30 | 1d 5h | 2,157 | 5,113 |
| 8 | June 11, 2023 13:45 | June 12, 2023 01:45 | 12h | 1,930 | 2,173 |
| 9 | June 22, 2023 22:15 | June 23, 2023 21:30 | 23h 15m | 1,795 | 4,978 |
| 10 | July 16, 2023 20:45 | July 17, 2023 07:45 | 11h | 1,777 | 1,737 |
Outage episodes by size in 2023: 102 reached 100+ customers, 22 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 Aiken County reported on EIA Form 861 for 2023, 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 | 2023 | 2.0 hrs | 1.48 | 90 min | 1.32 |
| Aiken Electric Coop Inc | 2023 | 2.5 hrs | - | 1.9 hrs | - |
| Mid-Carolina Electric Coop Inc | 2023 | 2.3 hrs | 1.63 | 2.0 hrs | 1.45 |
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 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 79,309 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. Aiken County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Aiken County, SC annual power outage report, 2023, 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/2023/south-carolina/aiken-county