massoutage

County annual report · FIPS 39171

2025 Williams County, OH Power Outage Report

In 2025, customers in Williams County, OH went without power for an average of 0.6 hours, a total of 9,420 customer-hours (Ohio average 4.0 hours). That ranks 88th worst of 88 Ohio counties and 2852nd of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
0.6
16,123 customers
Customer-hours out
9,420
Peak customers out
456
Outages ≥1,000 out
0
0 of 10,000+ · 192 total
Longest outage
17h 15m
began March 30, 2025
Rank in state
88th/88
2852nd of 3,000 US

Compared with OH, the US and 2024

Williams County, OH average hours without power per customer compared with state and national averages, 2025Williams County 0.6 hours, Ohio average 4.0 hours, US average 5.9 hours, Williams County, 2024 1.0 hoursWilliams CountyWilliams County0.6hOhio averageOhio average4.0hUS averageUS average5.9hWilliams County, 2024Williams County, 20241.0h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

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Williams County, OH customer-hours without power by month, 2025Jan 16, Feb 1,011, Mar 1,992, Apr 263, May 496, Jun 439, Jul 884, Aug 89, Sep 1,500, Oct 2,002, Nov 237, Dec 49201k2k3k16Jan1,011Feb1,992Mar263Apr496May439Jun884Jul89Aug1,500Sep2,002Oct237Nov492Dec
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Customer-hours; October was the worst month.

Williams County year over year

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Williams County, OH: average hours without power per customer by year2015: 0.5h; 2016: 0.6h; 2017: 1.3h; 2018: 1.8h, coverage 93%; 2019: 2.1h, coverage 93%; 2020: 1.8h, coverage 93%; 2021: 0.8h, coverage 93%; 2022: 3.4h, coverage 93%; 2023: 1.5h; 2024: 1.0h; 2025: 0.6h012340%50%100%0.5h20150.6h20161.3h20171.8h20182.1h20191.8h20200.8h20213.4h20221.5h20231.0h20240.6h2025
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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 Williams County, 2025

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
1September 8, 2025 23:15September 9, 2025 05:456h 30m4561,324
2March 20, 2025 02:45March 20, 2025 06:153h 30m409633
3October 19, 2025 07:30October 19, 2025 18:4511h 15m3111,240
4March 28, 2025 23:45March 29, 2025 04:455h286510
5March 29, 2025 08:30March 29, 2025 10:302h197345
6February 28, 2025 18:45February 28, 2025 22:003h 15m193427
7March 6, 2025 05:30March 6, 2025 07:151h 45m184282
8February 4, 2025 00:30February 4, 2025 05:154h 45m166422
9October 17, 2025 17:00October 17, 2025 19:002h153306
10May 29, 2025 18:15May 29, 2025 20:452h 30m115259

Outage episodes by size in 2025: 11 reached 100+ customers, 0 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 Williams County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Midwest Energy Cooperative - (MI)20247.2 hrs1.604.6 hrs1.30
The Toledo Edison Co20242.0 hrs1.031.6 hrs0.94
North Western Elec Coop, Inc201865 min0.81--
City of Bryan - (OH)201810 min0.1610 min0.16
Village of Edgerton - (OH)-----
Village of Montpelier - (OH)-----
Village of Pioneer - (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 n/a of Ohio's customers in 2025; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 16,123 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. Williams County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Williams County, OH annual power outage report, 2025, 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/2025/ohio/williams-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON