County annual report · FIPS 51740
2025 Portsmouth city, VA Power Outage Report
In 2025, customers in Portsmouth city, VA went without power for an average of 3.6 hours, a total of 155K customer-hours (Virginia average 8.6 hours). That ranks 102nd worst of 131 Virginia counties and 1879th of 3,000 nationally.
Compared with VA, the US and 2024
Coverage line is EAGLE-I's share of Virginia customers tracked each year.
Biggest outages in Portsmouth city, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 16, 2025 11:15 | September 17, 2025 16:15 | 1d 5h | 3,646 | 15K |
| 2 | February 26, 2025 16:00 | February 27, 2025 11:45 | 19h 45m | 3,438 | 11K |
| 3 | May 19, 2025 10:45 | May 20, 2025 03:00 | 16h 15m | 2,931 | 3,221 |
| 4 | June 6, 2025 10:45 | June 6, 2025 22:00 | 11h 15m | 2,917 | 5,993 |
| 5 | October 5, 2025 20:45 | October 6, 2025 01:15 | 4h 30m | 2,740 | 1,927 |
| 6 | September 10, 2025 01:00 | September 10, 2025 12:15 | 11h 15m | 2,623 | 3,349 |
| 7 | December 19, 2025 07:00 | December 19, 2025 22:00 | 15h | 2,215 | 2,864 |
| 8 | May 21, 2025 13:45 | May 21, 2025 21:15 | 7h 30m | 2,112 | 3,601 |
| 9 | May 22, 2025 13:45 | May 23, 2025 04:45 | 15h | 2,016 | 2,320 |
| 10 | January 31, 2025 13:45 | January 31, 2025 18:15 | 4h 30m | 1,999 | 4,854 |
Outage episodes by size in 2025: 65 reached 100+ customers, 20 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 2025, 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 n/a of Virginia's customers in 2025; 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, 2025, 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/2025/virginia/portsmouth-city