massoutage

County annual report · FIPS 39083

2021 Knox County, OH Power Outage Report

In 2021, customers in Knox County, OH went without power for an average of 3.1 hours, a total of 128K customer-hours (Ohio average 4.2 hours). That ranks 60th worst of 88 Ohio counties and 1808th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
3.1
41,371 customers
Customer-hours out
128K
Peak customers out
3,531
Outages ≥1,000 out
12
0 of 10,000+ · 841 total
Longest outage
1d 13h
began December 11, 2021
Rank in state
60th/88
1808th of 2,974 US

Compared with OH, the US and 2020

Knox County, OH average hours without power per customer compared with state and national averages, 2021Knox County 3.1 hours, Ohio average 4.2 hours, US average 8.9 hours, Knox County, 2020 6.5 hoursKnox CountyKnox County3.1hOhio averageOhio average4.2hUS averageUS average8.9hKnox County, 2020Knox County, 20206.5h
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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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Knox County, OH customer-hours without power by month, 2021Jan 2,463, Feb 2,483, Mar 19K, Apr 20K, May 17K, Jun 15K, Jul 6,541, Aug 20K, Sep 2,208, Oct 6,199, Nov 3,532, Dec 14K05k10k15k20k2,463Jan2,483Feb19KMar20KApr17KMay15KJun6,541Jul20KAug2,208Sep6,199Oct3,532Nov14KDec
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Customer-hours; August was the worst month.

Knox County year over year

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Knox County, OH: average hours without power per customer by year2015: 2.6h; 2016: 1.5h; 2017: 3.2h; 2018: 4.2h, coverage 93%; 2019: 3.5h, coverage 93%; 2020: 6.5h, coverage 93%; 2021: 3.1h, coverage 93%; 2022: 28.7h, coverage 93%; 2023: 6.5h; 2024: 2.4h; 2025: 2.9h01020300%50%100%2.6h20151.5h20163.2h20174.2h20183.5h20196.5h20203.1h202128.7h20226.5h20232.4h20242.9h2025
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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 Ohio customers tracked each year.

Biggest outages in Knox County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 29, 2021 11:15April 30, 2021 10:0022h 45m3,53115K
2March 26, 2021 08:30March 27, 2021 21:301d 13h2,35612K
3April 7, 2021 07:00April 7, 2021 10:153h 15m2,3541,187
4March 18, 2021 18:00March 19, 2021 05:4511h 45m2,0874,703
5May 23, 2021 03:00May 23, 2021 09:006h1,92811K
6October 24, 2021 21:45October 25, 2021 01:454h1,5622,754
7August 9, 2021 12:15August 10, 2021 19:301d 7h1,5433,447
8June 29, 2021 19:15June 30, 2021 14:0018h 45m1,2986,053
9April 9, 2021 02:45April 9, 2021 04:001h 15m1,2861,608
10May 4, 2021 16:45May 5, 2021 00:157h 30m1,1682,945

Outage episodes by size in 2021: 54 reached 100+ customers, 12 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 Knox 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
Ohio Power Co20213.9 hrs1.362.9 hrs1.26
Ohio Edison Co20212.7 hrs1.401.9 hrs1.23
Licking Rural Electric Inc20213.6 hrs2.062.0 hrs1.52
Consolidated Cooperative20212.4 hrs1.661.6 hrs1.33
Frontier Power Company20182.2 hrs1.432.2 hrs1.43
Holmes-Wayne Electric Coop Inc20216.6 hrs2.373.7 hrs1.87

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 93% of Ohio's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 41,371 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. Knox County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Knox County, OH 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/ohio/knox-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON