massoutage

County annual report · FIPS 39107

2023 Mercer County, OH Power Outage Report

In 2023, customers in Mercer County, OH went without power for an average of 3.5 hours, a total of 66K customer-hours (Ohio average 6.8 hours). That ranks 63rd worst of 88 Ohio counties and 1791st of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
3.5
18,878 customers
Customer-hours out
66K
Peak customers out
3,875
Outages ≥1,000 out
7
0 of 10,000+ · 386 total
Longest outage
2d 16h
began April 1, 2023
Rank in state
63rd/88
1791st of 2,977 US

Compared with OH, the US and 2022

Mercer County, OH average hours without power per customer compared with state and national averages, 2023Mercer County 3.5 hours, Ohio average 6.8 hours, US average 7.1 hours, Mercer County, 2022 1.3 hoursMercer CountyMercer County3.5hOhio averageOhio average6.8hUS averageUS average7.1hMercer County, 2022Mercer County, 20221.3h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

CSVJSON
Mercer County, OH customer-hours without power by month, 2023Jan 324, Feb 482, Mar 11K, Apr 40K, May 442, Jun 334, Jul 8,528, Aug 1,707, Sep 1,270, Oct 314, Nov 1,965, Dec 82010k20k30k40k324Jan482Feb11KMar40KApr442May334Jun8,528Jul1,707Aug1,270Sep314Oct1,965Nov82Dec
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Customer-hours; April was the worst month.

Mercer County year over year

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Mercer County, OH: average hours without power per customer by year2015: 1.0h; 2016: 0.6h; 2017: 1.2h; 2018: 0.8h, coverage 93%; 2019: 4.7h, coverage 93%; 2020: 3.9h, coverage 93%; 2021: 3.1h, coverage 93%; 2022: 1.3h, coverage 93%; 2023: 3.5h; 2024: 2.1h; 2025: 3.7h02460%50%100%1.0h20150.6h20161.2h20170.8h20184.7h20193.9h20203.1h20211.3h20223.5h20232.1h20243.7h2025
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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 Mercer County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 1, 2023 04:15April 3, 2023 20:152d 16h3,87539K
2March 23, 2023 00:30March 23, 2023 01:451h 15m2,1292,457
3July 29, 2023 07:45July 29, 2023 19:0011h 15m2,0527,202
4August 17, 2023 18:00August 17, 2023 19:001h1,605803
5April 28, 2023 00:15April 28, 2023 11:4511h 30m1,528435
6March 1, 2023 07:30March 1, 2023 20:3013h1,0543,265
7September 12, 2023 20:30September 13, 2023 01:004h 30m1,007866
8March 14, 2023 19:00March 14, 2023 21:152h 15m461645
9November 27, 2023 06:00November 27, 2023 10:154h 15m3981,692
10March 3, 2023 22:15March 4, 2023 07:459h 30m3763,564

Outage episodes by size in 2023: 20 reached 100+ customers, 7 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 Mercer County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Dayton Power & Light Co20232.8 hrs0.991.6 hrs0.74
Pioneer Rural Elec Coop, Inc - (OH)20232.8 hrs1.771.6 hrs1.30
Midwest Electric, Inc - (OH)20235.5 hrs1.6771 min0.94
Darke Rural Electric Coop, Inc-----
City of Celina - (OH)-----
City of Mendon - (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 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 18,878 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. Mercer County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Mercer County, OH annual power outage report, 2023, 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/2023/ohio/mercer-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON