County annual report · FIPS 51770
2017 Roanoke city, VA Power Outage Report
In 2017, customers in Roanoke city, VA went without power for an average of 2.8 hours, a total of 199K customer-hours (Virginia average 3.7 hours). That ranks 97th worst of 125 Virginia counties and 1390th 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 Roanoke city, 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 19, 2017 15:15 | October 20, 2017 01:45 | 10h 30m | 4,578 | 2,433 |
| 2 | July 20, 2017 02:00 | July 20, 2017 19:00 | 17h | 3,141 | 3,373 |
| 3 | October 13, 2017 05:30 | October 13, 2017 18:00 | 12h 30m | 3,122 | 23K |
| 4 | June 15, 2017 22:30 | June 17, 2017 03:00 | 1d 4h | 2,188 | 6,697 |
| 5 | October 9, 2017 05:45 | October 10, 2017 22:45 | 1d 17h | 1,463 | 11K |
| 6 | February 9, 2017 20:15 | February 10, 2017 20:00 | 23h 45m | 1,301 | 2,595 |
| 7 | June 19, 2017 19:45 | June 20, 2017 02:30 | 6h 45m | 1,287 | 2,835 |
| 8 | November 28, 2017 13:15 | November 28, 2017 21:15 | 8h | 1,279 | 4,668 |
| 9 | May 17, 2017 23:30 | May 18, 2017 00:30 | 1h | 1,276 | 1,276 |
| 10 | May 26, 2017 07:45 | May 26, 2017 18:30 | 10h 45m | 1,261 | 2,574 |
Outage episodes by size in 2017: 88 reached 100+ customers, 16 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 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 ÷ 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, 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/roanoke-city