County annual report · FIPS 51107
2025 Loudoun County, VA Power Outage Report
In 2025, customers in Loudoun County, VA went without power for an average of 2.5 hours, a total of 466K customer-hours (Virginia average 8.6 hours). That ranks 111th worst of 131 Virginia counties and 2237th 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 Loudoun County, 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 | June 19, 2025 18:00 | June 21, 2025 06:45 | 1d 12h | 17,820 | 61K |
| 2 | February 13, 2025 18:15 | February 14, 2025 11:15 | 17h | 11,068 | 19K |
| 3 | November 30, 2025 06:30 | November 30, 2025 07:30 | 1h | 9,464 | 5,175 |
| 4 | May 26, 2025 14:15 | May 26, 2025 14:45 | 30m | 6,443 | 2,441 |
| 5 | June 24, 2025 11:30 | June 27, 2025 09:00 | 2d 21h | 6,388 | 13K |
| 6 | March 16, 2025 16:30 | March 17, 2025 20:15 | 1d 3h | 6,326 | 24K |
| 7 | June 23, 2025 10:15 | June 24, 2025 07:15 | 21h | 6,234 | 25K |
| 8 | February 16, 2025 20:15 | February 18, 2025 12:00 | 1d 15h | 5,025 | 53K |
| 9 | January 16, 2025 09:30 | January 17, 2025 01:30 | 16h | 4,916 | 11K |
| 10 | March 25, 2025 13:00 | March 25, 2025 22:30 | 9h 30m | 4,800 | 1,529 |
Outage episodes by size in 2025: 160 reached 100+ customers, 36 reached 1,000+ customers, 2 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 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 |
|---|---|---|---|---|---|
| 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 2025; 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, 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/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2025/virginia/loudoun-county