County annual report · FIPS 45039
2023 Fairfield County, SC Power Outage Report
In 2023, customers in Fairfield County, SC went without power for an average of 4.3 hours, a total of 60K customer-hours (South Carolina average 2.7 hours). That ranks 13th worst of 46 South Carolina counties and 1606th 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 Fairfield 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 | August 7, 2023 22:15 | August 8, 2023 10:15 | 12h | 2,817 | 9,476 |
| 2 | September 12, 2023 18:15 | September 13, 2023 21:15 | 1d 3h | 1,841 | 10K |
| 3 | July 7, 2023 21:30 | July 8, 2023 08:15 | 10h 45m | 798 | 2,405 |
| 4 | August 12, 2023 01:30 | August 14, 2023 12:45 | 2d 11h | 781 | 1,403 |
| 5 | July 18, 2023 16:30 | July 18, 2023 20:00 | 3h 30m | 545 | 1,073 |
| 6 | December 5, 2023 18:30 | December 5, 2023 19:30 | 1h | 479 | 241 |
| 7 | May 12, 2023 21:45 | May 12, 2023 22:15 | 30m | 468 | 234 |
| 8 | July 23, 2023 23:00 | July 24, 2023 13:45 | 14h 45m | 462 | 788 |
| 9 | August 15, 2023 18:45 | August 16, 2023 01:15 | 6h 30m | 453 | 359 |
| 10 | May 19, 2023 07:30 | May 19, 2023 13:00 | 5h 30m | 433 | 480 |
Outage episodes by size in 2023: 44 reached 100+ customers, 2 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 Fairfield 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 |
|---|---|---|---|---|---|
| Duke Energy Carolinas, LLC | 2023 | 5.0 hrs | 1.68 | 3.3 hrs | 1.52 |
| Dominion Energy South Carolina, Inc | 2023 | 2.0 hrs | 1.48 | 90 min | 1.32 |
| Newberry Electric Coop, Inc | 2021 | 2.6 hrs | - | 2.6 hrs | - |
| Fairfield Electric Coop, Inc | - | - | - | - | - |
| Town of Winnsboro - (SC) | - | - | - | - | - |
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 ÷ 13,983 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. Fairfield County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Fairfield 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/fairfield-county