County annual report · FIPS 45087
2015 Union County, SC Power Outage Report
In 2015, customers in Union County, SC went without power for an average of 0.4 hours, a total of 9,049 customer-hours (South Carolina average 2.5 hours). That ranks 42nd worst of 46 South Carolina counties and 2123rd of 2,484 nationally.
Compared with SC, the US
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Union County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 5, 2015 01:15 | September 5, 2015 07:15 | 6h | 641 | 1,092 |
| 2 | October 8, 2015 22:15 | October 9, 2015 04:00 | 5h 45m | 638 | 3,509 |
| 3 | October 4, 2015 11:30 | October 5, 2015 15:00 | 1d 3h | 247 | 2,149 |
| 4 | February 17, 2015 03:00 | February 17, 2015 16:30 | 13h 30m | 245 | 928 |
| 5 | August 4, 2015 21:15 | August 4, 2015 23:00 | 1h 45m | 170 | 170 |
| 6 | August 11, 2015 16:30 | August 11, 2015 23:00 | 6h 30m | 73 | 254 |
| 7 | February 12, 2015 21:00 | February 13, 2015 00:15 | 3h 15m | 62 | 159 |
| 8 | May 30, 2015 00:45 | May 30, 2015 03:45 | 3h | 55 | 159 |
| 9 | October 8, 2015 12:30 | October 8, 2015 14:00 | 1h 30m | 51 | 77 |
| 10 | July 28, 2015 21:30 | July 28, 2015 22:15 | 45m | 50 | 27 |
Outage episodes by size in 2015: 5 reached 100+ customers, 0 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 2015, 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 | 2015 | 5.3 hrs | 1.29 | 2.6 hrs | 1.02 |
| Dominion Energy South Carolina, Inc | 2015 | 2.6 hrs | 1.62 | 1.6 hrs | 1.34 |
| Laurens Electric Coop, Inc | 2015 | 3.4 hrs | 1.38 | 86 min | 0.88 |
| 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 n/a of South Carolina's customers in 2015; 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, 2015, 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/2015/south-carolina/union-county