County annual report · FIPS 45063
2021 Lexington County, SC Power Outage Report
In 2021, customers in Lexington County, SC went without power for an average of 1.6 hours, a total of 257K customer-hours (South Carolina average 2.1 hours). That ranks 34th worst of 46 South Carolina counties and 2442nd of 2,974 nationally.
Compared with SC, the US and 2020
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Lexington County, 2021
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 4, 2021 17:15 | May 6, 2021 00:15 | 1d 7h | 8,114 | 44K |
| 2 | June 7, 2021 12:45 | June 7, 2021 19:45 | 7h | 5,314 | 7,399 |
| 3 | April 24, 2021 15:30 | April 25, 2021 00:45 | 9h 15m | 5,212 | 13K |
| 4 | August 13, 2021 14:00 | August 13, 2021 16:30 | 2h 30m | 5,039 | 1,293 |
| 5 | May 3, 2021 20:00 | May 4, 2021 10:45 | 14h 45m | 4,555 | 8,468 |
| 6 | April 12, 2021 12:30 | April 15, 2021 20:30 | 3d 8h | 4,209 | 2,409 |
| 7 | July 27, 2021 20:00 | July 28, 2021 10:45 | 14h 45m | 3,226 | 11K |
| 8 | August 17, 2021 19:15 | August 18, 2021 17:00 | 21h 45m | 2,944 | 4,173 |
| 9 | August 21, 2021 14:45 | August 21, 2021 22:45 | 8h | 2,845 | 4,649 |
| 10 | February 10, 2021 16:45 | February 10, 2021 17:00 | 15m | 2,753 | 688 |
Outage episodes by size in 2021: 157 reached 100+ customers, 36 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 Lexington County reported on EIA Form 861 for 2021, 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 | 2021 | 1.5 hrs | 1.10 | 79 min | 1.02 |
| Aiken Electric Coop Inc | 2021 | 1.9 hrs | - | 1.6 hrs | - |
| Tri-County Electric Coop, Inc (SC) | 2021 | 4.1 hrs | 2.61 | 3.4 hrs | 2.31 |
| Mid-Carolina Electric Coop Inc | 2021 | 2.3 hrs | 2.13 | 1.6 hrs | 1.84 |
| Newberry Electric Coop, Inc | 2021 | 2.6 hrs | - | 2.6 hrs | - |
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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 165,904 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. Lexington County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Lexington County, SC annual power outage report, 2021, 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/2021/south-carolina/lexington-county