County annual report · FIPS 51770
2018 Roanoke city, VA Power Outage Report
In 2018, customers in Roanoke city, VA went without power for an average of 13.3 hours, a total of 951K customer-hours (Virginia average 18.7 hours). That ranks 78th worst of 124 Virginia counties and 424th 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 Roanoke city, 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 | March 2, 2018 02:15 | March 6, 2018 01:00 | 3d 22h | 7,811 | 234K |
| 2 | November 15, 2018 09:45 | November 22, 2018 00:30 | 6d 14h | 7,275 | 52K |
| 3 | May 27, 2018 12:15 | May 30, 2018 02:30 | 2d 14h | 6,721 | 52K |
| 4 | May 30, 2018 22:00 | June 3, 2018 21:00 | 3d 23h | 4,886 | 29K |
| 5 | August 3, 2018 15:00 | August 7, 2018 06:45 | 3d 15h | 4,640 | 20K |
| 6 | May 13, 2018 04:15 | May 24, 2018 23:15 | 11d 19h | 4,375 | 60K |
| 7 | June 25, 2018 21:30 | June 28, 2018 02:30 | 2d 5h | 4,126 | 4,881 |
| 8 | October 21, 2018 03:15 | October 23, 2018 23:00 | 2d 19h | 2,322 | 28K |
| 9 | December 21, 2018 11:45 | December 25, 2018 06:45 | 3d 19h | 2,264 | 20K |
| 10 | April 11, 2018 13:45 | April 11, 2018 23:00 | 9h 15m | 2,200 | 3,282 |
Outage episodes by size in 2018: 133 reached 100+ customers, 31 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 Roanoke city 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 ÷ 71,375 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. Roanoke city has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Roanoke city, 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/roanoke-city