County annual report · FIPS 51077
2017 Grayson County, VA Power Outage Report
In 2017, customers in Grayson County, VA went without power for an average of 33.3 hours, a total of 271K customer-hours (Virginia average 3.7 hours). That ranks 4th worst of 125 Virginia counties and 148th of 2,786 nationally.
Compared with VA, the US and 2016
Coverage line is EAGLE-I's share of Virginia customers tracked each year.
Biggest outages in Grayson County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 23, 2017 10:00 | October 25, 2017 20:45 | 2d 10h | 6,119 | 99K |
| 2 | October 9, 2017 00:15 | October 11, 2017 00:00 | 1d 23h | 5,809 | 68K |
| 3 | December 9, 2017 14:15 | December 10, 2017 06:45 | 16h 30m | 1,291 | 414 |
| 4 | June 13, 2017 20:45 | June 14, 2017 20:00 | 23h 15m | 1,144 | 742 |
| 5 | January 14, 2017 07:00 | January 14, 2017 14:15 | 7h 15m | 1,142 | 5,912 |
| 6 | December 13, 2017 22:00 | December 15, 2017 00:45 | 1d 2h | 1,045 | 14K |
| 7 | May 10, 2017 01:45 | May 10, 2017 18:00 | 16h 15m | 804 | 13K |
| 8 | October 19, 2017 12:45 | October 19, 2017 19:30 | 6h 45m | 705 | 426 |
| 9 | April 29, 2017 14:45 | May 2, 2017 18:15 | 3d 3h | 623 | 976 |
| 10 | July 29, 2017 04:30 | July 29, 2017 23:00 | 18h 30m | 566 | 2,748 |
Outage episodes by size in 2017: 45 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 2017, 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 | 2017 | 11.0 hrs | 2.18 | 7.4 hrs | 1.97 |
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 2017; 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, 2017, 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/2017/virginia/grayson-county