County annual report · FIPS 37179
2021 Union County, NC Power Outage Report
In 2021, customers in Union County, NC went without power for an average of 3.1 hours, a total of 205K customer-hours (North Carolina average 10.3 hours). That ranks 67th worst of 94 North Carolina counties and 1797th of 2,974 nationally.
Compared with NC, the US and 2020
Coverage line is EAGLE-I's share of North Carolina customers tracked each year.
Biggest outages in Union 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 | June 7, 2021 17:00 | June 8, 2021 19:15 | 1d 2h | 12,750 | 21K |
| 2 | December 20, 2021 14:00 | December 20, 2021 19:15 | 5h 15m | 4,996 | 2,561 |
| 3 | December 2, 2021 11:00 | December 2, 2021 23:00 | 12h | 4,974 | 1,378 |
| 4 | August 19, 2021 19:00 | August 20, 2021 08:15 | 13h 15m | 3,381 | 17K |
| 5 | February 3, 2021 16:30 | February 4, 2021 00:30 | 8h | 2,784 | 3,986 |
| 6 | April 11, 2021 16:45 | April 11, 2021 19:30 | 2h 45m | 2,748 | 5,027 |
| 7 | April 12, 2021 12:45 | April 12, 2021 21:30 | 8h 45m | 2,666 | 729 |
| 8 | July 7, 2021 13:00 | July 7, 2021 23:45 | 10h 45m | 2,662 | 753 |
| 9 | July 29, 2021 19:30 | July 29, 2021 23:00 | 3h 30m | 2,659 | 6,649 |
| 10 | May 19, 2021 11:45 | May 19, 2021 12:00 | 15m | 2,652 | 663 |
Outage episodes by size in 2021: 104 reached 100+ customers, 33 reached 1,000+ customers, 1 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 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 |
|---|---|---|---|---|---|
| Duke Energy Carolinas, LLC | 2021 | 3.5 hrs | 1.20 | 2.5 hrs | 1.10 |
| Pee Dee Electric Member Corp | 2021 | 2.3 hrs | 1.87 | 2.3 hrs | 1.87 |
| Union Electric Membership Corp - (NC) | 2021 | 80 min | 0.94 | 62 min | 0.74 |
| City of Monroe - (NC) | 2021 | 73 min | 0.76 | 36 min | 0.66 |
| Duke Energy | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 92% of North Carolina's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 65,408 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, NC 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/north-carolina/union-county