massoutage

County annual report · FIPS 51101

2021 King William County, VA Power Outage Report

In 2021, customers in King William County, VA went without power for an average of 14.0 hours, a total of 113K customer-hours (Virginia average 8.7 hours). That ranks 52nd worst of 130 Virginia counties and 598th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
14.0
8,030 customers
Customer-hours out
113K
Peak customers out
3,489
Outages ≥1,000 out
7
0 of 10,000+ · 255 total
Longest outage
3d 2h
began February 13, 2021
Rank in state
52nd/130
598th of 2,974 US

Compared with VA, the US and 2020

King William County, VA average hours without power per customer compared with state and national averages, 2021King William County 14.0 hours, Virginia average 8.7 hours, US average 8.9 hours, King William County, 2020 5.1 hoursKing William CountyKing William County14.0hVirginia averageVirginia average8.7hUS averageUS average8.9hKing William County, 2020King William County,…5.1h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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King William County, VA customer-hours without power by month, 2021Jan 1,520, Feb 73K, Mar 538, Apr 329, May 268, Jun 1,032, Jul 16K, Aug 15K, Sep 1,578, Oct 3,453, Nov 86, Dec 68020k40k60k80k1,520Jan73KFeb538Mar329Apr268May1,032Jun16KJul15KAug1,578Sep3,453Oct86Nov68Dec
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Customer-hours; February was the worst month.

King William County year over year

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King William County, VA: average hours without power per customer by year2015: 2.0h; 2016: 9.7h; 2017: 4.5h; 2018: 25.0h, coverage 96%; 2019: 3.0h, coverage 97%; 2020: 5.1h, coverage 97%; 2021: 14.0h, coverage 97%; 2022: 7.3h, coverage 97%; 2023: 3.5h; 2024: 3.0h; 2025: 8.5h01020300%50%100%2.0h20159.7h20164.5h201725.0h20183.0h20195.1h202014.0h20217.3h20223.5h20233.0h20248.5h2025
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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 King William County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 6, 2021 22:00August 7, 2021 01:153h 15m3,4895,884
2February 13, 2021 15:30February 16, 2021 17:453d 2h3,45569K
3July 29, 2021 22:45July 31, 2021 05:451d 7h2,13914K
4October 16, 2021 19:00October 17, 2021 11:0016h1,5242,427
5August 14, 2021 23:45August 15, 2021 22:4523h1,3735,646
6January 4, 2021 10:30January 4, 2021 14:153h 45m1,1411,445
7February 19, 2021 10:30February 20, 2021 03:0016h 30m1,0294,205
8September 21, 2021 13:45September 21, 2021 17:003h 15m401569
9September 23, 2021 08:00September 23, 2021 08:1515m400100
10September 18, 2021 10:45September 18, 2021 11:1530m399200

Outage episodes by size in 2021: 25 reached 100+ customers, 7 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 King William County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Rappahannock Electric Coop20217.6 hrs2.142.7 hrs1.54
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 ÷ 8,030 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. King William County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), King William County, 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/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2021/virginia/king-william-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON