County annual report · FIPS 37075
2023 Graham County, NC Power Outage Report
In 2023, customers in Graham County, NC went without power for an average of - hours, a total of 88K customer-hours (North Carolina average 12.6 hours).
Compared with NC, the US and 2022
No loaded years to plot yet.
Coverage line is EAGLE-I's share of North Carolina customers tracked each year.
Biggest outages in Graham County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 27, 2023 22:15 | February 27, 2023 22:30 | 15m | 1,983 | 496 |
| 2 | April 1, 2023 11:15 | April 3, 2023 04:15 | 1d 17h | 1,936 | 35K |
| 3 | January 14, 2023 06:45 | January 14, 2023 09:15 | 2h 30m | 1,795 | 2,693 |
| 4 | June 20, 2023 18:00 | June 20, 2023 20:45 | 2h 45m | 1,461 | 2,923 |
| 5 | March 3, 2023 17:15 | March 5, 2023 22:15 | 2d 5h | 1,163 | 10K |
| 6 | February 13, 2023 13:15 | February 13, 2023 20:30 | 7h 15m | 702 | 4,010 |
| 7 | June 23, 2023 20:15 | June 23, 2023 22:30 | 2h 15m | 702 | 1,245 |
| 8 | August 15, 2023 04:15 | August 15, 2023 23:00 | 18h 45m | 638 | 4,057 |
| 9 | March 8, 2023 19:45 | March 8, 2023 20:15 | 30m | 597 | 245 |
| 10 | August 10, 2023 10:45 | August 10, 2023 21:15 | 10h 30m | 451 | 2,137 |
Outage episodes by size in 2023: 33 reached 100+ customers, 5 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 Graham County reported on EIA Form 861 for 2023, 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 | 2023 | 5.0 hrs | 1.68 | 3.3 hrs | 1.52 |
| Duke Energy | - | - | - | - | - |
| Tennessee Valley Authority | - | - | - | - | - |
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 2023; 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. Graham County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Graham County, NC annual power outage report, 2023, 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/2023/north-carolina/graham-county