County annual report · FIPS 45057
2020 Lancaster County, SC Power Outage Report
In 2020, customers in Lancaster County, SC went without power for an average of 3.9 hours, a total of 204K customer-hours (South Carolina average 5.7 hours). That ranks 21st worst of 46 South Carolina counties and 1636th of 3,019 nationally.
Compared with SC, the US and 2019
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Lancaster County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 22, 2020 17:15 | May 25, 2020 00:30 | 2d 7h | 4,794 | 78K |
| 2 | August 12, 2020 23:45 | August 13, 2020 03:45 | 4h | 3,799 | 8,518 |
| 3 | April 6, 2020 17:00 | April 16, 2020 02:45 | 9d 9h | 3,334 | 39K |
| 4 | May 18, 2020 23:00 | May 19, 2020 12:30 | 13h 30m | 2,224 | 4,726 |
| 5 | February 20, 2020 22:45 | February 21, 2020 07:45 | 9h | 1,908 | 1,606 |
| 6 | May 19, 2020 20:45 | May 20, 2020 05:30 | 8h 45m | 1,797 | 1,891 |
| 7 | July 12, 2020 06:45 | July 12, 2020 09:00 | 2h 15m | 1,676 | 3,381 |
| 8 | April 27, 2020 13:45 | April 27, 2020 18:15 | 4h 30m | 1,661 | 841 |
| 9 | August 1, 2020 04:30 | August 1, 2020 15:30 | 11h | 1,576 | 12K |
| 10 | August 26, 2020 14:45 | August 26, 2020 15:15 | 30m | 1,375 | 688 |
Outage episodes by size in 2020: 54 reached 100+ customers, 12 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 2020, 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 | 2020 | 11.2 hrs | 1.71 | 3.1 hrs | 1.18 |
| York Electric Coop Inc | 2020 | 3.4 hrs | 0.99 | 72 min | 0.69 |
| Lynches River Elec Coop, Inc | 2020 | 6.0 hrs | 2.30 | 2.7 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 99% of South Carolina's customers in 2020; 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, 2020, 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/2020/south-carolina/lancaster-county