County annual report · FIPS 45057
2023 Lancaster County, SC Power Outage Report
In 2023, customers in Lancaster County, SC went without power for an average of 2.5 hours, a total of 129K customer-hours (South Carolina average 2.7 hours). That ranks 30th worst of 46 South Carolina counties and 2127th 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 Lancaster 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 23, 2023 01:00 | August 23, 2023 03:00 | 2h | 3,071 | 2,444 |
| 2 | May 25, 2023 17:00 | May 26, 2023 01:00 | 8h | 3,024 | 4,534 |
| 3 | November 16, 2023 12:30 | November 17, 2023 00:30 | 12h | 2,810 | 1,649 |
| 4 | November 1, 2023 04:45 | November 1, 2023 05:00 | 15m | 2,801 | 700 |
| 5 | July 26, 2023 19:30 | July 27, 2023 03:00 | 7h 30m | 2,791 | 2,559 |
| 6 | August 7, 2023 22:30 | August 8, 2023 16:30 | 18h | 2,572 | 5,442 |
| 7 | June 27, 2023 15:45 | June 28, 2023 02:30 | 10h 45m | 2,466 | 1,346 |
| 8 | October 27, 2023 18:30 | October 28, 2023 00:15 | 5h 45m | 2,439 | 7,020 |
| 9 | October 9, 2023 11:30 | October 9, 2023 17:30 | 6h | 2,220 | 1,140 |
| 10 | August 28, 2023 20:15 | August 29, 2023 03:30 | 7h 15m | 1,919 | 6,286 |
Outage episodes by size in 2023: 86 reached 100+ customers, 27 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 Lancaster 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 |
| York Electric Coop Inc | 2023 | 1.6 hrs | 0.82 | 89 min | 0.81 |
| Lynches River Elec Coop, Inc | 2023 | 5.5 hrs | 2.60 | 2.5 hrs | 1.80 |
| Duke Energy | - | - | - | - | - |
| Fairfield Electric Coop, Inc | - | - | - | - | - |
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 ÷ 52,274 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. Lancaster County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Lancaster 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/lancaster-county