massoutage

County annual report · FIPS 51059

2017 Fairfax County, VA Power Outage Report

In 2017, customers in Fairfax County, VA went without power for an average of 2.2 hours, a total of 1.1M customer-hours (Virginia average 3.7 hours). That ranks 107th worst of 125 Virginia counties and 1584th of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
2.2
513,143 customers
Customer-hours out
1.1M
Peak customers out
26,741
Outages ≥1,000 out
77
3 of 10,000+ · 509 total
Longest outage
9d 17h
began May 17, 2017
Rank in state
107th/125
1584th of 2,786 US

Compared with VA, the US and 2016

Fairfax County, VA average hours without power per customer compared with state and national averages, 2017Fairfax County 2.2 hours, Virginia average 3.7 hours, US average 7.4 hours, Fairfax County, 2016 2.4 hoursFairfax CountyFairfax County2.2hVirginia averageVirginia average3.7hUS averageUS average7.4hFairfax County, 2016Fairfax County, 20162.4h
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Average hours without power per customer in 2017; last bar is this county in 2016.

Month by month

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Fairfax County, VA customer-hours without power by month, 2017Jan 61K, Feb 180K, Mar 48K, Apr 106K, May 61K, Jun 144K, Jul 194K, Aug 131K, Sep 69K, Oct 75K, Nov 37K, Dec 74050k100k150k200k61KJan180KFeb48KMar106KApr61KMay144KJun194KJul131KAug69KSep75KOct37KNov74Dec
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Customer-hours; July was the worst month.

Fairfax County year over year

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Fairfax County, VA: average hours without power per customer by year2015: 2.0h; 2016: 2.4h; 2017: 2.2h; 2018: no data; 2019: no data; 2020: 0.2h, coverage 97%; 2021: 4.1h, coverage 97%; 2022: 3.8h, coverage 97%; 2023: 2.9h; 2024: 2.3h; 2025: 4.9h02460%50%100%2.0h20152.4h20162.2h2017n/a2018n/a20190.2h20204.1h20213.8h20222.9h20232.3h20244.9h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Virginia customers tracked each year.

Biggest outages in Fairfax County, 2017

The 10 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 19, 2017 10:15June 21, 2017 08:451d 22h26,74187K
2February 13, 2017 00:00February 15, 2017 08:152d 8h22,153153K
3April 6, 2017 05:30April 8, 2017 09:302d 4h14,51873K
4November 19, 2017 09:30November 20, 2017 04:3019h9,70415K
5July 14, 2017 12:15July 16, 2017 10:001d 21h8,91037K
6January 14, 2017 22:45January 15, 2017 19:3020h 45m7,1656,016
7June 26, 2017 10:15June 27, 2017 01:1515h6,2584,955
8July 5, 2017 22:15July 6, 2017 22:451d6,07125K
9March 1, 2017 07:15March 3, 2017 01:301d 18h5,5988,339
10February 25, 2017 12:00February 26, 2017 14:151d 2h5,59111K

Outage episodes by size in 2017: 203 reached 100+ customers, 77 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 2017, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Northern Virginia Elec Coop201646 min0.6446 min0.64
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 n/a of Virginia's customers in 2017; 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, 2017, 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/2017/virginia/fairfax-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON