County annual report · FIPS 51740
2018 Portsmouth city, VA Power Outage Report
In 2018, customers in Portsmouth city, VA went without power for an average of 9.8 hours, a total of 422K customer-hours (Virginia average 18.7 hours). That ranks 91st worst of 124 Virginia counties and 567th 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 Portsmouth 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 | October 11, 2018 23:45 | October 15, 2018 03:15 | 3d 3h | 10,626 | 300K |
| 2 | September 7, 2018 14:30 | September 7, 2018 18:45 | 4h 15m | 6,417 | 7,363 |
| 3 | June 19, 2018 20:00 | June 26, 2018 16:45 | 6d 20h | 4,499 | 12K |
| 4 | March 12, 2018 20:45 | March 16, 2018 17:45 | 3d 21h | 4,417 | 10K |
| 5 | August 23, 2018 13:15 | August 23, 2018 23:15 | 10h | 3,556 | 1,010 |
| 6 | November 21, 2018 08:15 | November 21, 2018 10:15 | 2h | 2,355 | 3,247 |
| 7 | July 30, 2018 19:45 | July 31, 2018 09:45 | 14h | 2,208 | 2,505 |
| 8 | March 2, 2018 09:00 | March 4, 2018 20:30 | 2d 11h | 1,988 | 17K |
| 9 | September 8, 2018 20:30 | September 9, 2018 13:45 | 17h 15m | 1,950 | 6,792 |
| 10 | January 5, 2018 13:00 | January 5, 2018 22:45 | 9h 45m | 1,811 | 488 |
Outage episodes by size in 2018: 71 reached 100+ customers, 13 reached 1,000+ customers, 1 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 Portsmouth 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 |
|---|---|---|---|---|---|
| Virginia Electric & Power Co | - | - | - | - | - |
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 ÷ 43,205 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. Portsmouth city has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Portsmouth 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/). https://massoutage.com/reports/2018/virginia/portsmouth-city