massoutage

County annual report · FIPS 51043

2021 Clarke County, VA Power Outage Report

In 2021, customers in Clarke County, VA went without power for an average of 7.1 hours, a total of 54K customer-hours (Virginia average 8.7 hours). That ranks 77th worst of 130 Virginia counties and 1028th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
7.1
7,589 customers
Customer-hours out
54K
Peak customers out
1,816
Outages ≥1,000 out
4
0 of 10,000+ · 342 total
Longest outage
1d 20h
began April 30, 2021
Rank in state
77th/130
1028th of 2,974 US

Compared with VA, the US and 2020

Clarke County, VA average hours without power per customer compared with state and national averages, 2021Clarke County 7.1 hours, Virginia average 8.7 hours, US average 8.9 hours, Clarke County, 2020 3.3 hoursClarke CountyClarke County7.1hVirginia averageVirginia average8.7hUS averageUS average8.9hClarke County, 2020Clarke County, 20203.3h
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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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Clarke County, VA customer-hours without power by month, 2021Jan 1,323, Feb 426, Mar 3,509, Apr 7,032, May 6,175, Jun 11K, Jul 1,598, Aug 14K, Sep 5,939, Oct 2,121, Nov 228, Dec 12405k10k15k1,323Jan426Feb3,509Mar7,032Apr6,175May11KJun1,598Jul14KAug5,939Sep2,121Oct228Nov124Dec
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Customer-hours; August was the worst month.

Clarke County year over year

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Clarke County, VA: average hours without power per customer by year2015: 4.6h; 2016: 9.6h; 2017: 7.3h; 2018: 13.6h, coverage 96%; 2019: 6.3h, coverage 97%; 2020: 3.3h, coverage 97%; 2021: 7.1h, coverage 97%; 2022: 6.9h, coverage 97%; 2023: 4.4h; 2024: 4.3h; 2025: 4.8h0510150%50%100%4.6h20159.6h20167.3h201713.6h20186.3h20193.3h20207.1h20216.9h20224.4h20234.3h20244.8h2025
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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 Clarke County, 2021

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 21, 2021 21:00June 23, 2021 00:451d 3h1,81611K
2August 30, 2021 06:00August 30, 2021 09:453h 45m1,5785,918
3April 30, 2021 04:30May 2, 2021 01:151d 20h1,5228,674
4August 12, 2021 17:30August 12, 2021 20:453h 15m1,4301,431
5May 9, 2021 12:30May 9, 2021 14:302h8911,337
6September 1, 2021 18:30September 2, 2021 06:0011h 30m5833,112
7April 6, 2021 22:00April 6, 2021 22:4545m513297
8August 10, 2021 20:15August 12, 2021 00:001d 3h5014,593
9May 27, 2021 14:00May 27, 2021 15:451h 45m369646
10April 15, 2021 23:30April 16, 2021 01:001h 30m368552

Outage episodes by size in 2021: 28 reached 100+ customers, 4 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 Clarke County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Rappahannock Electric Coop20217.6 hrs2.142.7 hrs1.54
Shenandoah Valley Elec Coop20213.7 hrs2.212.8 hrs1.94
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 97% of Virginia's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 7,589 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. Clarke County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Clarke 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/clarke-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON