massoutage

County annual report · FIPS 51005

2021 Alleghany County, VA Power Outage Report

In 2021, customers in Alleghany County, VA went without power for an average of 19.0 hours, a total of 71K customer-hours (Virginia average 8.7 hours). That ranks 32nd worst of 130 Virginia counties and 457th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
19.0
3,740 customers
Customer-hours out
71K
Peak customers out
2,066
Outages ≥1,000 out
3
0 of 10,000+ · 348 total
Longest outage
1d 22h
began May 4, 2021
Rank in state
32nd/130
457th of 2,974 US

Compared with VA, the US and 2020

Alleghany County, VA average hours without power per customer compared with state and national averages, 2021Alleghany County 19.0 hours, Virginia average 8.7 hours, US average 8.9 hours, Alleghany County, 2020 15.3 hoursAlleghany CountyAlleghany County19.0hVirginia averageVirginia average8.7hUS averageUS average8.9hAlleghany County, 2020Alleghany County, 20…15.3h
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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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Alleghany County, VA customer-hours without power by month, 2021Jan 1,548, Feb 11K, Mar 3,397, Apr 14K, May 18K, Jun 11K, Jul 3,311, Aug 3,220, Sep 2,798, Oct 1,242, Nov 284, Dec 36805k10k15k20k1,548Jan11KFeb3,397Mar14KApr18KMay11KJun3,311Jul3,220Aug2,798Sep1,242Oct284Nov368Dec
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Customer-hours; May was the worst month.

Alleghany County year over year

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Alleghany County, VA: average hours without power per customer by year2015: 4.9h; 2016: 17.5h; 2017: 7.3h; 2018: 21.0h, coverage 96%; 2019: 28.8h, coverage 97%; 2020: 15.3h, coverage 97%; 2021: 19.0h, coverage 97%; 2022: 28.0h, coverage 97%; 2023: 16.9h; 2024: 54.0h; 2025: 23.9h02040600%50%100%4.9h201517.5h20167.3h201721.0h201828.8h201915.3h202019.0h202128.0h202216.9h202354.0h202423.9h2025
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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 Alleghany 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
1May 4, 2021 19:00May 6, 2021 17:151d 22h2,0669,048
2February 18, 2021 13:15February 19, 2021 20:301d 7h1,9708,840
3April 30, 2021 13:00May 1, 2021 17:151d 4h1,7938,470
4January 19, 2021 13:45January 19, 2021 18:154h 30m958719
5April 29, 2021 22:30April 30, 2021 02:304h8562,348
6March 6, 2021 16:00March 6, 2021 23:457h 45m7722,207
7June 30, 2021 14:30June 30, 2021 18:304h7462,984
8April 21, 2021 15:30April 21, 2021 17:001h 30m745745
9September 22, 2021 19:45September 23, 2021 15:4520h6841,206
10June 13, 2021 22:30June 14, 2021 22:1523h 45m6453,980

Outage episodes by size in 2021: 41 reached 100+ customers, 3 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 Alleghany 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
Craig-Botetourt Electric Coop201825.9 hrs6.048.7 hrs3.51
BARC Electric Coop Inc201820.5 hrs4.555.9 hrs2.55
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 ÷ 3,740 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. Alleghany County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Alleghany 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/alleghany-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON