massoutage

County annual report · FIPS 39147

2021 Seneca County, OH Power Outage Report

In 2021, customers in Seneca County, OH went without power for an average of 1.0 hours, a total of 35K customer-hours (Ohio average 4.2 hours). That ranks 87th worst of 88 Ohio counties and 2674th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
1.0
35,754 customers
Customer-hours out
35K
Peak customers out
2,135
Outages ≥1,000 out
4
0 of 10,000+ · 545 total
Longest outage
1d 8h
began August 11, 2021
Rank in state
87th/88
2674th of 2,974 US

Compared with OH, the US and 2020

Seneca County, OH average hours without power per customer compared with state and national averages, 2021Seneca County 1.0 hours, Ohio average 4.2 hours, US average 8.9 hours, Seneca County, 2020 2.6 hoursSeneca CountySeneca County1.0hOhio averageOhio average4.2hUS averageUS average8.9hSeneca County, 2020Seneca County, 20202.6h
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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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Seneca County, OH customer-hours without power by month, 2021Jan 490, Feb 473, Mar 9,736, Apr 754, May 1,449, Jun 9,044, Jul 2,850, Aug 3,667, Sep 752, Oct 1,216, Nov 2,449, Dec 2,07402.5k5k7.5k10k490Jan473Feb9,736Mar754Apr1,449May9,044Jun2,850Jul3,667Aug752Sep1,216Oct2,449Nov2,074Dec
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Customer-hours; March was the worst month.

Seneca County year over year

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Seneca County, OH: average hours without power per customer by year2015: 1.7h; 2016: 0.5h; 2017: 2.1h; 2018: 1.6h, coverage 93%; 2019: 1.3h, coverage 93%; 2020: 2.6h, coverage 93%; 2021: 1.0h, coverage 93%; 2022: 1.3h, coverage 93%; 2023: 1.2h; 2024: 1.1h; 2025: 1.7h01230%50%100%1.7h20150.5h20162.1h20171.6h20181.3h20192.6h20201.0h20211.3h20221.2h20231.1h20241.7h2025
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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 Seneca County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 6, 2021 19:45June 7, 2021 02:006h 15m2,1353,219
2March 23, 2021 01:45March 23, 2021 07:005h 15m1,6246,280
3June 16, 2021 03:30June 16, 2021 07:304h1,3264,731
4August 5, 2021 20:15August 6, 2021 01:004h 45m1,0881,103
5October 22, 2021 04:15October 22, 2021 04:4530m829415
6March 18, 2021 16:00March 18, 2021 23:157h 15m6831,932
7November 14, 2021 15:45November 14, 2021 18:152h 30m673346
8July 27, 2021 12:30July 27, 2021 23:0010h 30m6111,739
9August 16, 2021 15:30August 16, 2021 20:455h 15m5481,526
10November 28, 2021 21:45November 29, 2021 00:152h 30m4941,122

Outage episodes by size in 2021: 20 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 Seneca 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
Hancock-Wood Electric Coop Inc20211.7 hrs1.3154 min0.81
The Toledo Edison Co20212.8 hrs1.1269 min0.74
North Central Elec Coop, Inc - (OH)202142 min-34 min-
Firelands Electric Coop, Inc20182.5 hrs-2.5 hrs-
Village of Republic - (OH)-----

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 ÷ 35,754 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. Seneca County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Seneca 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/seneca-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON