County annual report · FIPS 51153
2020 Prince William County, VA Power Outage Report
In 2020, customers in Prince William County, VA went without power for an average of 0.9 hours, a total of 200K customer-hours (Virginia average 6.1 hours). That ranks 120th worst of 129 Virginia counties and 2698th of 3,019 nationally.
Compared with VA, the US and 2019
Coverage line is EAGLE-I's share of Virginia customers tracked each year.
Biggest outages in Prince William County, 2020
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 4, 2020 13:30 | September 5, 2020 05:45 | 16h 15m | 5,277 | 1,628 |
| 2 | January 19, 2020 12:00 | January 19, 2020 22:30 | 10h 30m | 4,832 | 21K |
| 3 | November 1, 2020 21:45 | November 3, 2020 07:45 | 1d 10h | 3,752 | 9,273 |
| 4 | July 21, 2020 12:45 | July 26, 2020 07:30 | 4d 18h | 3,416 | 17K |
| 5 | June 22, 2020 16:30 | June 23, 2020 09:45 | 17h 15m | 3,261 | 1,117 |
| 6 | September 16, 2020 19:45 | September 16, 2020 23:30 | 3h 45m | 3,175 | 1,166 |
| 7 | June 6, 2020 22:30 | June 7, 2020 05:00 | 6h 30m | 2,680 | 7,377 |
| 8 | December 7, 2020 10:45 | December 8, 2020 03:00 | 16h 15m | 2,596 | 3,918 |
| 9 | September 3, 2020 22:45 | September 4, 2020 05:45 | 7h | 2,567 | 3,369 |
| 10 | October 13, 2020 04:15 | October 13, 2020 18:00 | 13h 45m | 2,341 | 5,085 |
Outage episodes by size in 2020: 126 reached 100+ customers, 19 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 Prince William County reported on EIA Form 861 for 2020, 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 |
|---|---|---|---|---|---|
| Northern Virginia Elec Coop | 2016 | 46 min | 0.64 | 46 min | 0.64 |
| 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 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 225,231 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. Prince William County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Prince William County, VA annual power outage report, 2020, 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/2020/virginia/prince-william-county