County annual report · FIPS 51077
2025 Grayson County, VA Power Outage Report
In 2025, customers in Grayson County, VA went without power for an average of 94.0 hours, a total of 765K customer-hours (Virginia average 8.6 hours). That ranks 4th worst of 131 Virginia counties and 32nd of 3,000 nationally.
Compared with VA, the US and 2024
Coverage line is EAGLE-I's share of Virginia customers tracked each year.
Biggest outages in Grayson 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 | February 12, 2025 00:45 | February 19, 2025 18:30 | 7d 17h | 10,665 | 612K |
| 2 | November 9, 2025 15:00 | November 9, 2025 21:30 | 6h 30m | 7,038 | 8,969 |
| 3 | February 3, 2025 20:00 | February 3, 2025 22:15 | 2h 15m | 2,466 | 5,011 |
| 4 | May 21, 2025 20:45 | May 22, 2025 23:00 | 1d 2h | 2,176 | 3,003 |
| 5 | May 13, 2025 04:00 | May 13, 2025 22:45 | 18h 45m | 1,218 | 11K |
| 6 | November 12, 2025 16:45 | November 12, 2025 22:15 | 5h 30m | 1,076 | 824 |
| 7 | September 4, 2025 09:30 | September 5, 2025 20:00 | 1d 10h | 1,069 | 5,313 |
| 8 | December 29, 2025 17:00 | December 30, 2025 23:15 | 1d 6h | 1,034 | 9,094 |
| 9 | December 19, 2025 07:00 | December 20, 2025 18:45 | 1d 11h | 926 | 15K |
| 10 | May 17, 2025 00:30 | May 18, 2025 22:30 | 1d 22h | 924 | 4,449 |
Outage episodes by size in 2025: 47 reached 100+ customers, 8 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 Grayson 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 |
|---|---|---|---|---|---|
| Appalachian Power Co | 2024 | 29.5 hrs | 2.79 | 7.7 hrs | 2.07 |
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 Virginia's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 8,137 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. Grayson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Grayson County, VA 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/virginia/grayson-county