County annual report · FIPS 51107
2022 Loudoun County, VA Power Outage Report
In 2022, customers in Loudoun County, VA went without power for an average of 2.4 hours, a total of 452K customer-hours (Virginia average 10.0 hours). That ranks 121st worst of 128 Virginia counties and 2149th of 2,976 nationally.
Compared with VA, the US and 2021
Coverage line is EAGLE-I's share of Virginia customers tracked each year.
Biggest outages in Loudoun County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 23, 2022 08:30 | December 28, 2022 09:15 | 5d | 8,686 | 78K |
| 2 | January 16, 2022 13:00 | January 19, 2022 03:45 | 2d 14h | 6,853 | 16K |
| 3 | June 1, 2022 23:00 | June 2, 2022 08:30 | 9h 30m | 6,288 | 2,936 |
| 4 | July 11, 2022 14:00 | July 14, 2022 21:45 | 3d 7h | 6,041 | 31K |
| 5 | June 22, 2022 13:45 | June 25, 2022 21:00 | 3d 7h | 5,748 | 84K |
| 6 | February 22, 2022 22:30 | February 23, 2022 16:00 | 17h 30m | 5,314 | 15K |
| 7 | February 3, 2022 23:45 | February 4, 2022 01:45 | 2h | 5,081 | 3,162 |
| 8 | July 25, 2022 11:30 | July 26, 2022 15:45 | 1d 4h | 4,819 | 6,592 |
| 9 | December 12, 2022 12:00 | December 13, 2022 03:15 | 15h 15m | 4,553 | 8,067 |
| 10 | May 22, 2022 18:00 | May 23, 2022 23:45 | 1d 5h | 4,069 | 6,258 |
Outage episodes by size in 2022: 135 reached 100+ customers, 38 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 Loudoun County reported on EIA Form 861 for 2022, 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 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 187,874 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. Loudoun County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Loudoun County, VA annual power outage report, 2022, 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/2022/virginia/loudoun-county