County annual report · FIPS 51059
2020 Fairfax County, VA Power Outage Report
In 2020, customers in Fairfax County, VA went without power for an average of 0.2 hours, a total of 84K customer-hours (Virginia average 6.1 hours). That ranks 125th worst of 129 Virginia counties and 2921st of 3,019 nationally.
Compared with VA, the US and 2017
Coverage line is EAGLE-I's share of Virginia customers tracked each year.
Biggest outages in Fairfax 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 | November 24, 2020 13:45 | November 25, 2020 02:45 | 13h | 9,993 | 8,606 |
| 2 | December 8, 2020 07:15 | December 9, 2020 03:45 | 20h 30m | 7,744 | 10K |
| 3 | December 27, 2020 03:45 | December 27, 2020 13:00 | 9h 15m | 3,304 | 1,679 |
| 4 | December 22, 2020 09:30 | December 23, 2020 07:00 | 21h 30m | 2,033 | 4,997 |
| 5 | December 26, 2020 11:15 | December 27, 2020 01:30 | 14h 15m | 1,874 | 1,512 |
| 6 | December 1, 2020 12:45 | December 1, 2020 21:15 | 8h 30m | 1,778 | 1,088 |
| 7 | November 20, 2020 10:15 | November 21, 2020 04:15 | 18h | 1,690 | 1,413 |
| 8 | December 12, 2020 12:00 | December 13, 2020 03:30 | 15h 30m | 1,605 | 734 |
| 9 | December 12, 2020 04:30 | December 12, 2020 10:15 | 5h 45m | 1,575 | 1,600 |
| 10 | December 17, 2020 01:30 | December 18, 2020 03:15 | 1d 1h | 1,294 | 839 |
Outage episodes by size in 2020: 40 reached 100+ customers, 13 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 Fairfax 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 ÷ 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, 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/fairfax-county