County annual report · FIPS 51740
2021 Portsmouth city, VA Power Outage Report
In 2021, customers in Portsmouth city, VA went without power for an average of 2.1 hours, a total of 90K customer-hours (Virginia average 8.7 hours). That ranks 113th worst of 130 Virginia counties and 2189th of 2,974 nationally.
Compared with VA, the US and 2020
Coverage line is EAGLE-I's share of Virginia customers tracked each year.
Biggest outages in Portsmouth city, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 1, 2021 19:15 | June 2, 2021 00:30 | 5h 15m | 2,967 | 2,132 |
| 2 | July 14, 2021 18:45 | July 14, 2021 22:00 | 3h 15m | 2,930 | 4,259 |
| 3 | August 22, 2021 20:00 | August 23, 2021 05:15 | 9h 15m | 2,586 | 3,584 |
| 4 | April 23, 2021 21:00 | April 24, 2021 16:00 | 19h | 2,450 | 6,104 |
| 5 | November 9, 2021 08:30 | November 10, 2021 01:30 | 17h | 1,675 | 4,377 |
| 6 | June 13, 2021 18:15 | June 14, 2021 09:00 | 14h 45m | 1,638 | 5,414 |
| 7 | May 25, 2021 01:15 | May 25, 2021 01:45 | 30m | 1,630 | 408 |
| 8 | July 8, 2021 23:45 | July 9, 2021 19:30 | 19h 45m | 1,582 | 3,945 |
| 9 | April 9, 2021 05:30 | April 9, 2021 11:45 | 6h 15m | 1,380 | 1,371 |
| 10 | March 19, 2021 02:30 | March 19, 2021 08:45 | 6h 15m | 1,368 | 5,025 |
Outage episodes by size in 2021: 62 reached 100+ customers, 14 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 Portsmouth city reported on EIA Form 861 for 2021, 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 97% of Virginia's customers in 2021; 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, 2021, 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/2021/virginia/portsmouth-city