massoutage

County annual report · FIPS 54037

2021 Jefferson County, WV Power Outage Report

In 2021, customers in Jefferson County, WV went without power for an average of 3.6 hours, a total of 111K customer-hours (West Virginia average 21.4 hours). That ranks 52nd worst of 55 West Virginia counties and 1653rd of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
3.6
30,664 customers
Customer-hours out
111K
Peak customers out
4,018
Outages ≥1,000 out
14
0 of 10,000+ · 565 total
Longest outage
1d 9h
began July 17, 2021
Rank in state
52nd/55
1653rd of 2,974 US

Compared with WV, the US and 2020

Jefferson County, WV average hours without power per customer compared with state and national averages, 2021Jefferson County 3.6 hours, West Virginia average 21.4 hours, US average 8.9 hours, Jefferson County, 2020 2.2 hoursJefferson CountyJefferson County3.6hWest Virginia averageWest Virginia average21.4hUS averageUS average8.9hJefferson County, 2020Jefferson County, 20…2.2h
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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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Jefferson County, WV customer-hours without power by month, 2021Jan 321, Feb 1,446, Mar 22K, Apr 7,697, May 24K, Jun 8,052, Jul 9,374, Aug 14K, Sep 7,431, Oct 4,614, Nov 5,836, Dec 6,662010k20k30k321Jan1,446Feb22KMar7,697Apr24KMay8,052Jun9,374Jul14KAug7,431Sep4,614Oct5,836Nov6,662Dec
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Customer-hours; May was the worst month.

Jefferson County year over year

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Jefferson County, WV: average hours without power per customer by year2015: 5.5h; 2016: 3.4h; 2017: 3.0h; 2018: 3.9h, coverage 100%; 2019: 4.2h, coverage 100%; 2020: 2.2h, coverage 100%; 2021: 3.6h, coverage 97%; 2022: 4.0h, coverage 100%; 2023: 2.8h; 2024: 11.1h; 2025: 4.0h0510150%50%100%5.5h20153.4h20163.0h20173.9h20184.2h20192.2h20203.6h20214.0h20222.8h202311.1h20244.0h2025
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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 West Virginia customers tracked each year.

Biggest outages in Jefferson 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
1March 28, 2021 21:00March 29, 2021 23:001d 2h4,01820K
2May 26, 2021 19:30May 28, 2021 02:451d 7h3,85915K
3August 10, 2021 20:30August 11, 2021 17:3021h2,8755,280
4April 30, 2021 15:30May 2, 2021 00:001d 8h2,12511K
5October 16, 2021 19:30October 16, 2021 23:304h2,0272,039
6December 20, 2021 15:00December 20, 2021 21:006h1,3241,706
7December 11, 2021 21:15December 12, 2021 18:3021h 15m1,3003,014
8June 10, 2021 13:30June 11, 2021 00:4511h 15m1,2871,663
9June 11, 2021 12:45June 12, 2021 09:1520h 30m1,2672,151
10November 16, 2021 13:00November 16, 2021 17:304h 30m1,122597

Outage episodes by size in 2021: 43 reached 100+ customers, 14 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 Jefferson 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
The Potomac Edison Company20213.3 hrs1.262.9 hrs1.20

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 West Virginia's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 30,664 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. Jefferson County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Jefferson County, WV 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/west-virginia/jefferson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON