County annual report · FIPS 45087
2017 Union County, SC Power Outage Report
In 2017, 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 43rd worst of 46 South Carolina counties and 2066th of 2,786 nationally.
Compared with SC, the US and 2016
Coverage line is EAGLE-I's share of South Carolina customers tracked each year.
Biggest outages in Union County, 2017
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 6, 2017 12:30 | September 6, 2017 14:00 | 1h 30m | 842 | 973 |
| 2 | September 11, 2017 18:30 | September 13, 2017 16:30 | 1d 22h | 736 | 4,728 |
| 3 | April 3, 2017 19:45 | April 4, 2017 05:00 | 9h 15m | 670 | 1,422 |
| 4 | July 23, 2017 19:45 | July 24, 2017 01:00 | 5h 15m | 663 | 1,561 |
| 5 | June 7, 2017 04:15 | June 7, 2017 16:00 | 11h 45m | 655 | 1,541 |
| 6 | March 22, 2017 00:00 | March 22, 2017 03:45 | 3h 45m | 650 | 192 |
| 7 | March 9, 2017 16:15 | March 9, 2017 16:45 | 30m | 648 | 324 |
| 8 | August 11, 2017 16:45 | August 11, 2017 17:30 | 45m | 648 | 162 |
| 9 | October 20, 2017 20:45 | October 20, 2017 21:15 | 30m | 647 | 163 |
| 10 | July 11, 2017 13:15 | July 11, 2017 14:30 | 1h 15m | 646 | 646 |
Outage episodes by size in 2017: 16 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 2017, 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 | 2017 | 8.8 hrs | 1.52 | 3.1 hrs | 1.11 |
| Dominion Energy South Carolina, Inc | 2017 | 5.5 hrs | 1.85 | 82 min | 1.14 |
| Laurens Electric Coop, Inc | 2017 | 5.0 hrs | 2.20 | 1.5 hrs | 1.37 |
| 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 2017; 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, 2017, 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/2017/south-carolina/union-county