County annual report · FIPS 51107
2024 Loudoun County, VA Power Outage Report
In 2024, customers in Loudoun County, VA went without power for an average of 1.8 hours, a total of 344K customer-hours (Virginia average 8.4 hours). That ranks 119th worst of 130 Virginia counties and 2459th of 2,990 nationally.
Compared with VA, the US and 2023
Coverage line is EAGLE-I's share of Virginia customers tracked each year.
Biggest outages in Loudoun County, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 27, 2024 03:45 | May 28, 2024 11:45 | 1d 8h | 13,906 | 29K |
| 2 | July 15, 2024 11:00 | July 17, 2024 10:30 | 1d 23h | 7,940 | 36K |
| 3 | August 3, 2024 17:30 | August 6, 2024 03:45 | 2d 10h | 7,636 | 49K |
| 4 | July 30, 2024 19:45 | August 1, 2024 04:00 | 1d 8h | 6,940 | 11K |
| 5 | February 28, 2024 20:30 | March 1, 2024 01:45 | 1d 5h | 4,269 | 21K |
| 6 | June 22, 2024 23:15 | June 23, 2024 09:30 | 10h 15m | 4,171 | 8,040 |
| 7 | June 19, 2024 01:45 | June 19, 2024 21:45 | 20h | 4,164 | 2,045 |
| 8 | July 7, 2024 15:30 | July 8, 2024 03:00 | 11h 30m | 3,818 | 6,684 |
| 9 | December 5, 2024 12:45 | December 5, 2024 23:45 | 11h | 3,802 | 4,296 |
| 10 | August 7, 2024 20:45 | August 10, 2024 00:15 | 2d 3h | 3,705 | 12K |
Outage episodes by size in 2024: 130 reached 100+ customers, 31 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 Loudoun County reported on EIA Form 861 for 2024, 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 | 2024 | 1.6 hrs | 0.86 | 62 min | 0.77 |
| 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 2024; 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, 2024, 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/2024/virginia/loudoun-county