County annual report · FIPS 45087
2022 Union County, SC Power Outage Report
In 2022, customers in Union County, SC went without power for an average of 0.9 hours, a total of 21K customer-hours (South Carolina average 4.4 hours). That ranks 46th worst of 46 South Carolina counties and 2717th of 2,976 nationally.
Compared with SC, the US and 2021
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Union County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 1, 2022 00:00 | January 7, 2022 19:15 | 6d 19h | 1,101 | 4,145 |
| 2 | December 23, 2022 10:15 | December 23, 2022 22:00 | 11h 45m | 1,052 | 2,043 |
| 3 | June 16, 2022 20:00 | June 17, 2022 16:00 | 20h | 897 | 7,132 |
| 4 | July 26, 2022 19:45 | July 26, 2022 20:00 | 15m | 669 | 167 |
| 5 | June 17, 2022 21:45 | June 18, 2022 10:45 | 13h | 624 | 1,192 |
| 6 | January 10, 2022 19:15 | January 19, 2022 19:15 | 9d | 392 | 1,939 |
| 7 | May 6, 2022 22:45 | May 7, 2022 02:00 | 3h 15m | 316 | 439 |
| 8 | August 30, 2022 23:45 | August 31, 2022 04:15 | 4h 30m | 230 | 226 |
| 9 | July 19, 2022 23:30 | July 20, 2022 02:30 | 3h | 137 | 134 |
| 10 | July 6, 2022 01:45 | July 6, 2022 09:15 | 7h 30m | 115 | 566 |
Outage episodes by size in 2022: 14 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 Union County reported on EIA Form 861 for 2022, 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 | 2022 | 7.1 hrs | 1.93 | 3.1 hrs | 1.35 |
| Dominion Energy South Carolina, Inc | 2022 | 3.9 hrs | 1.93 | 78 min | 1.07 |
| Laurens Electric Coop, Inc | 2022 | 4.3 hrs | 1.87 | 1.6 hrs | 1.07 |
| Broad River Electric Coop, Inc | - | - | - | - | - |
| Lockhart Power Co | - | - | - | - | - |
| City of Union - (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 99% of South Carolina's customers in 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 21,940 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. Union County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Union County, SC annual power outage report, 2022, 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/2022/south-carolina/union-county