County annual report · FIPS 37175
2021 Transylvania County, NC Power Outage Report
In 2021, customers in Transylvania County, NC went without power for an average of - hours, a total of 118K customer-hours (North Carolina average 10.3 hours).
Compared with NC, the US and 2020
No loaded years to plot yet.
Coverage line is EAGLE-I's share of North Carolina customers tracked each year.
Biggest outages in Transylvania 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 | August 24, 2021 15:15 | August 25, 2021 05:30 | 14h 15m | 5,418 | 4,545 |
| 2 | August 31, 2021 13:30 | September 1, 2021 19:15 | 1d 5h | 2,921 | 9,324 |
| 3 | October 6, 2021 02:15 | October 6, 2021 20:30 | 18h 15m | 2,196 | 2,802 |
| 4 | August 17, 2021 15:15 | August 20, 2021 16:15 | 3d 1h | 2,084 | 17K |
| 5 | February 7, 2021 03:00 | February 7, 2021 19:30 | 16h 30m | 2,039 | 12K |
| 6 | April 12, 2021 20:00 | April 13, 2021 03:15 | 7h 15m | 1,593 | 7,133 |
| 7 | March 30, 2021 13:45 | March 30, 2021 22:15 | 8h 30m | 1,384 | 423 |
| 8 | March 12, 2021 14:00 | March 12, 2021 15:30 | 1h 30m | 1,381 | 692 |
| 9 | April 8, 2021 13:00 | April 8, 2021 15:15 | 2h 15m | 1,378 | 3,101 |
| 10 | May 25, 2021 12:30 | May 25, 2021 13:45 | 1h 15m | 1,323 | 335 |
Outage episodes by size in 2021: 54 reached 100+ customers, 12 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 Transylvania 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 |
| Haywood Electric Member Corp | 2021 | 9.8 hrs | 3.63 | 7.7 hrs | 3.25 |
| 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 ÷ 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. Transylvania County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Transylvania 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/transylvania-county