massoutage

County annual report · FIPS 39061

2020 Hamilton County, OH Power Outage Report

In 2020, customers in Hamilton County, OH went without power for an average of 3.8 hours, a total of 1.6M customer-hours (Ohio average 5.2 hours). That ranks 54th worst of 88 Ohio counties and 1671st of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
3.8
437,530 customers
Customer-hours out
1.6M
Peak customers out
45,694
Outages ≥1,000 out
77
4 of 10,000+ · 715 total
Longest outage
5d 15h
began April 8, 2020
Rank in state
54th/88
1671st of 3,019 US

Compared with OH, the US and 2019

Hamilton County, OH average hours without power per customer compared with state and national averages, 2020Hamilton County 3.8 hours, Ohio average 5.2 hours, US average 8.7 hours, Hamilton County, 2019 2.5 hoursHamilton CountyHamilton County3.8hOhio averageOhio average5.2hUS averageUS average8.7hHamilton County, 2019Hamilton County, 20192.5h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

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Hamilton County, OH customer-hours without power by month, 2020Jan 59K, Feb 31K, Mar 25K, Apr 835K, May 91K, Jun 90K, Jul 200K, Aug 40K, Sep 50K, Oct 53K, Nov 105K, Dec 63K0250k500k750k1M59KJan31KFeb25KMar835KApr91KMay90KJun200KJul40KAug50KSep53KOct105KNov63KDec
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Customer-hours; April was the worst month.

Hamilton County year over year

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Hamilton County, OH: average hours without power per customer by year2015: 2.7h; 2016: 3.6h; 2017: 3.3h; 2018: 5.7h, coverage 93%; 2019: 2.5h, coverage 93%; 2020: 3.8h, coverage 93%; 2021: 2.2h, coverage 93%; 2022: 6.6h, coverage 93%; 2023: 2.7h; 2024: 4.8h; 2025: 2.4h024680%50%100%2.7h20153.6h20163.3h20175.7h20182.5h20193.8h20202.2h20216.6h20222.7h20234.8h20242.4h2025
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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 Hamilton County, 2020

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
1April 8, 2020 12:45April 14, 2020 03:455d 15h45,694800K
2July 27, 2020 05:30July 29, 2020 08:152d 2h15,52447K
3December 17, 2020 05:45December 17, 2020 11:005h 15m11,0117,155
4March 2, 2020 02:45March 2, 2020 10:458h10,5685,519
5November 15, 2020 06:00November 17, 2020 04:301d 22h9,74259K
6July 4, 2020 12:15July 8, 2020 04:153d 16h7,37747K
7January 11, 2020 17:45January 14, 2020 09:152d 15h6,39243K
8July 8, 2020 12:15July 9, 2020 04:0015h 45m5,95515K
9June 30, 2020 12:30July 2, 2020 10:301d 22h5,92928K
10July 19, 2020 08:45July 21, 2020 02:301d 17h5,90527K

Outage episodes by size in 2020: 255 reached 100+ customers, 77 reached 1,000+ customers, 4 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 Hamilton County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Duke Energy Ohio Inc20203.5 hrs1.131.8 hrs0.92
Butler Rural Electric Coop Inc - (OH)20203.3 hrs2.2089 min1.23
Duke Energy-----

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 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 437,530 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. Hamilton County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Hamilton County, OH annual power outage report, 2020, 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/2020/ohio/hamilton-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON