County annual report · FIPS 51600
2021 Fairfax city, VA Power Outage Report
In 2021, customers in Fairfax city, VA went without power for an average of 1.9 hours, a total of 24K customer-hours (Virginia average 8.7 hours). That ranks 116th worst of 130 Virginia counties and 2286th of 2,974 nationally.
Compared with VA, the US and 2020
Coverage line is EAGLE-I's share of Virginia customers tracked each year.
Biggest outages in Fairfax city, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 23, 2021 22:30 | August 24, 2021 08:00 | 9h 30m | 1,717 | 3,863 |
| 2 | March 26, 2021 15:15 | March 26, 2021 16:30 | 1h 15m | 845 | 254 |
| 3 | March 26, 2021 18:45 | March 26, 2021 19:00 | 15m | 845 | 211 |
| 4 | August 10, 2021 21:45 | August 11, 2021 16:45 | 19h | 540 | 4,858 |
| 5 | June 13, 2021 12:30 | June 13, 2021 17:30 | 5h | 421 | 626 |
| 6 | July 4, 2021 13:45 | July 4, 2021 22:45 | 9h | 366 | 2,289 |
| 7 | September 1, 2021 07:30 | September 1, 2021 21:30 | 14h | 337 | 360 |
| 8 | October 6, 2021 17:30 | October 6, 2021 18:45 | 1h 15m | 316 | 395 |
| 9 | February 7, 2021 09:45 | February 7, 2021 13:45 | 4h | 263 | 734 |
| 10 | August 11, 2021 20:15 | August 11, 2021 23:00 | 2h 45m | 263 | 287 |
Outage episodes by size in 2021: 23 reached 100+ customers, 1 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 city reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| 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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 12,701 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 city has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Fairfax city, VA annual power outage report, 2021, 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/). https://massoutage.com/reports/2021/virginia/fairfax-city