County annual report · FIPS 45057
2025 Lancaster County, SC Power Outage Report
In 2025, customers in Lancaster County, SC went without power for an average of 3.1 hours, a total of 161K customer-hours (South Carolina average 3.0 hours). That ranks 24th worst of 46 South Carolina counties and 2041st of 3,000 nationally.
Compared with SC, the US and 2024
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Lancaster County, 2025
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, 2025 23:15 | July 22, 2025 16:00 | 16h 45m | 5,861 | 6,731 |
| 2 | July 6, 2025 12:45 | July 6, 2025 18:00 | 5h 15m | 3,592 | 18K |
| 3 | April 22, 2025 13:00 | April 24, 2025 02:00 | 1d 13h | 3,029 | 21K |
| 4 | July 19, 2025 15:00 | July 19, 2025 20:45 | 5h 45m | 2,067 | 8,806 |
| 5 | May 3, 2025 18:30 | May 4, 2025 18:00 | 23h 30m | 1,990 | 7,758 |
| 6 | August 11, 2025 20:00 | August 11, 2025 20:45 | 45m | 1,922 | 1,442 |
| 7 | June 8, 2025 02:00 | June 8, 2025 11:45 | 9h 45m | 1,832 | 12K |
| 8 | July 6, 2025 19:15 | July 6, 2025 21:00 | 1h 45m | 1,797 | 459 |
| 9 | January 24, 2025 12:45 | January 24, 2025 20:00 | 7h 15m | 1,751 | 2,219 |
| 10 | January 11, 2025 03:15 | January 11, 2025 21:00 | 17h 45m | 1,663 | 3,121 |
Outage episodes by size in 2025: 90 reached 100+ customers, 16 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 2025, 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 | 2024 | 78.6 hrs | 2.50 | 2.9 hrs | 1.26 |
| York Electric Coop Inc | 2024 | 16.3 hrs | 2.20 | 89 min | 1.69 |
| Lynches River Elec Coop, Inc | 2024 | 8.6 hrs | 3.20 | 2.7 hrs | 1.90 |
| 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 2025; 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, 2025, 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/2025/south-carolina/lancaster-county