County annual report · FIPS 51077
2018 Grayson County, VA Power Outage Report
In 2018, customers in Grayson County, VA went without power for an average of 71.7 hours, a total of 583K customer-hours (Virginia average 18.7 hours). That ranks 25th worst of 124 Virginia counties and 91st of 2,798 nationally.
Compared with VA, the US and 2017
Coverage line is EAGLE-I's share of Virginia customers tracked each year.
Biggest outages in Grayson County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 15, 2018 10:45 | November 21, 2018 20:30 | 6d 9h | 7,299 | 211K |
| 2 | October 20, 2018 16:45 | October 22, 2018 23:15 | 2d 6h | 6,139 | 88K |
| 3 | June 10, 2018 23:45 | June 11, 2018 18:30 | 18h 45m | 5,040 | 41K |
| 4 | March 12, 2018 06:15 | March 14, 2018 22:15 | 2d 16h | 2,956 | 35K |
| 5 | September 16, 2018 09:45 | September 19, 2018 01:00 | 2d 15h | 1,529 | 26K |
| 6 | January 23, 2018 03:30 | January 25, 2018 14:30 | 2d 11h | 1,525 | 4,169 |
| 7 | July 15, 2018 20:00 | July 16, 2018 18:30 | 22h 30m | 1,266 | 9,515 |
| 8 | November 24, 2018 07:15 | November 24, 2018 21:15 | 14h | 1,250 | 9,285 |
| 9 | June 28, 2018 12:15 | June 28, 2018 16:00 | 3h 45m | 1,138 | 310 |
| 10 | January 1, 2018 00:00 | January 12, 2018 22:45 | 11d 22h | 949 | 8,922 |
Outage episodes by size in 2018: 51 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 2018, 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 | 2018 | 19.3 hrs | 2.76 | 9.3 hrs | 2.25 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 96% of Virginia's customers in 2018; 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, 2018, 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/2018/virginia/grayson-county