County annual report · FIPS 51059
2024 Fairfax County, VA Power Outage Report
In 2024, customers in Fairfax County, VA went without power for an average of 2.3 hours, a total of 1.2M customer-hours (Virginia average 8.4 hours). That ranks 114th worst of 130 Virginia counties and 2321st 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 Fairfax 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 | November 20, 2024 20:15 | November 22, 2024 11:30 | 1d 15h | 16,417 | 89K |
| 2 | February 26, 2024 13:45 | March 6, 2024 02:15 | 8d 12h | 12,937 | 78K |
| 3 | June 24, 2024 13:00 | June 28, 2024 09:00 | 3d 20h | 11,890 | 56K |
| 4 | February 11, 2024 22:45 | February 14, 2024 06:00 | 2d 7h | 7,744 | 24K |
| 5 | October 13, 2024 10:15 | October 14, 2024 02:30 | 16h 15m | 6,369 | 4,042 |
| 6 | August 29, 2024 11:00 | August 31, 2024 10:00 | 1d 23h | 5,941 | 23K |
| 7 | January 9, 2024 02:45 | January 12, 2024 01:45 | 2d 23h | 5,867 | 44K |
| 8 | May 29, 2024 10:45 | May 30, 2024 06:45 | 20h | 5,457 | 10K |
| 9 | December 9, 2024 12:30 | December 10, 2024 00:45 | 12h 15m | 5,340 | 7,223 |
| 10 | September 4, 2024 01:15 | September 5, 2024 09:45 | 1d 8h | 5,298 | 6,688 |
Outage episodes by size in 2024: 226 reached 100+ customers, 65 reached 1,000+ customers, 3 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 Fairfax 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 ÷ 513,143 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. Fairfax County has data for 2015–2017, 2020–2025.
Cite this report
MassOutage (massoutage.com), Fairfax 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/fairfax-county