County annual report · FIPS 37173
2025 Swain County, NC Power Outage Report
In 2025, customers in Swain County, NC went without power for an average of - hours, a total of 164K customer-hours (North Carolina average 9.8 hours).
Compared with NC, the US and 2024
No loaded years to plot yet.
Coverage line is EAGLE-I's share of North Carolina customers tracked each year.
Biggest outages in Swain County, 2025
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 4, 2025 23:15 | September 5, 2025 18:45 | 19h 30m | 2,165 | 3,576 |
| 2 | June 9, 2025 23:45 | June 10, 2025 18:15 | 18h 30m | 1,935 | 23K |
| 3 | June 24, 2025 21:00 | June 25, 2025 06:45 | 9h 45m | 1,652 | 8,024 |
| 4 | August 4, 2025 13:15 | August 5, 2025 01:30 | 12h 15m | 1,465 | 2,566 |
| 5 | November 15, 2025 20:30 | November 15, 2025 22:45 | 2h 15m | 1,440 | 855 |
| 6 | April 6, 2025 09:15 | April 6, 2025 10:15 | 1h | 1,303 | 1,303 |
| 7 | June 30, 2025 23:45 | July 1, 2025 18:00 | 18h 15m | 1,173 | 4,743 |
| 8 | September 28, 2025 11:00 | September 28, 2025 14:15 | 3h 15m | 1,161 | 295 |
| 9 | March 16, 2025 06:45 | March 17, 2025 04:15 | 21h 30m | 1,124 | 3,193 |
| 10 | January 6, 2025 03:00 | January 6, 2025 15:15 | 12h 15m | 1,112 | 4,159 |
Outage episodes by size in 2025: 79 reached 100+ customers, 14 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 Swain County reported on EIA Form 861 for 2025, 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 | 2024 | 78.6 hrs | 2.50 | 2.9 hrs | 1.26 |
| 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 n/a of North Carolina's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ modeled 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. Swain County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Swain County, NC annual power outage report, 2025, 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/2025/north-carolina/swain-county