County annual report · FIPS 51077
2023 Grayson County, VA Power Outage Report
In 2023, customers in Grayson County, VA went without power for an average of 18.9 hours, a total of 154K customer-hours (Virginia average 4.6 hours). That ranks 10th worst of 130 Virginia counties and 441st of 2,977 nationally.
Compared with VA, the US and 2022
Coverage line is EAGLE-I's share of Virginia customers tracked each year.
Biggest outages in Grayson 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 | April 1, 2023 18:00 | April 4, 2023 01:00 | 2d 7h | 2,008 | 31K |
| 2 | October 12, 2023 20:15 | October 12, 2023 21:15 | 1h | 1,702 | 1,702 |
| 3 | October 1, 2023 12:00 | October 1, 2023 17:00 | 5h | 1,695 | 8,474 |
| 4 | August 18, 2023 15:45 | August 18, 2023 16:30 | 45m | 1,456 | 728 |
| 5 | September 13, 2023 13:30 | September 13, 2023 14:15 | 45m | 1,375 | 1,030 |
| 6 | February 12, 2023 07:45 | February 14, 2023 21:30 | 2d 13h | 1,318 | 25K |
| 7 | July 26, 2023 17:00 | July 27, 2023 01:45 | 8h 45m | 1,186 | 2,722 |
| 8 | December 10, 2023 20:15 | December 12, 2023 00:15 | 1d 4h | 1,120 | 5,665 |
| 9 | May 16, 2023 23:15 | May 17, 2023 22:30 | 23h 15m | 1,073 | 1,110 |
| 10 | March 25, 2023 16:15 | March 26, 2023 20:00 | 1d 3h | 985 | 5,162 |
Outage episodes by size in 2023: 50 reached 100+ customers, 9 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 Grayson 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 |
|---|---|---|---|---|---|
| Appalachian Power Co | 2023 | 11.5 hrs | 2.12 | 6.9 hrs | 1.77 |
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 2023; 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, 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/virginia/grayson-county