County annual report · FIPS 51077
2020 Grayson County, VA Power Outage Report
In 2020, customers in Grayson County, VA went without power for an average of 16.2 hours, a total of 132K customer-hours (Virginia average 6.1 hours). That ranks 24th worst of 129 Virginia counties and 512th of 3,019 nationally.
Compared with VA, the US and 2019
Coverage line is EAGLE-I's share of Virginia customers tracked each year.
Biggest outages in Grayson County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 1, 2020 17:15 | December 2, 2020 09:15 | 16h | 7,020 | 3,579 |
| 2 | October 31, 2020 19:15 | November 3, 2020 19:00 | 2d 23h | 5,124 | 45K |
| 3 | April 20, 2020 04:30 | April 21, 2020 16:30 | 1d 12h | 1,635 | 4,285 |
| 4 | September 17, 2020 16:30 | September 18, 2020 04:00 | 11h 30m | 1,357 | 1,364 |
| 5 | July 10, 2020 20:15 | July 11, 2020 19:15 | 23h | 1,347 | 5,882 |
| 6 | August 29, 2020 18:15 | September 2, 2020 16:00 | 3d 21h | 1,041 | 5,603 |
| 7 | August 1, 2020 15:30 | August 2, 2020 01:00 | 9h 30m | 644 | 1,024 |
| 8 | February 7, 2020 05:15 | February 8, 2020 16:15 | 1d 11h | 587 | 4,435 |
| 9 | March 5, 2020 14:45 | March 5, 2020 16:15 | 1h 30m | 531 | 797 |
| 10 | May 12, 2020 03:30 | May 12, 2020 10:30 | 7h | 525 | 3,675 |
Outage episodes by size in 2020: 48 reached 100+ customers, 6 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 2020, 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 | 2020 | 10.1 hrs | 2.26 | 7.7 hrs | 2.01 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 97% of Virginia's customers in 2020; 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, 2020, 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/2020/virginia/grayson-county