massoutage

County annual report · FIPS 39061

2019 Hamilton County, OH Power Outage Report

In 2019, customers in Hamilton County, OH went without power for an average of 2.5 hours, a total of 1.1M customer-hours (Ohio average 5.2 hours). That ranks 74th worst of 88 Ohio counties and 1835th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
2.5
437,530 customers
Customer-hours out
1.1M
Peak customers out
24,436
Outages ≥1,000 out
96
5 of 10,000+ · 574 total
Longest outage
12d 17h
began October 15, 2019
Rank in state
74th/88
1835th of 2,945 US

Compared with OH, the US and 2018

Hamilton County, OH average hours without power per customer compared with state and national averages, 2019Hamilton County 2.5 hours, Ohio average 5.2 hours, US average 4.7 hours, Hamilton County, 2018 5.7 hoursHamilton CountyHamilton County2.5hOhio averageOhio average5.2hUS averageUS average4.7hHamilton County, 2018Hamilton County, 20185.7h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

CSVJSON
Hamilton County, OH customer-hours without power by month, 2019Jan 67K, Feb 76K, Mar 120K, Apr 61K, May 68K, Jun 81K, Jul 82K, Aug 261K, Sep 39K, Oct 64K, Nov 92K, Dec 84K0100k200k300k67KJan76KFeb120KMar61KApr68KMay81KJun82KJul261KAug39KSep64KOct92KNov84KDec
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Customer-hours; August was the worst month.

Hamilton County year over year

CSVJSON
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, 2019

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 8, 2019 11:15August 10, 2019 19:452d 8h24,436129K
2October 2, 2019 10:15October 3, 2019 05:0018h 45m19,33327K
3November 27, 2019 05:00November 29, 2019 05:302d18,02059K
4December 30, 2019 05:45December 30, 2019 14:308h 45m14,72660K
5August 19, 2019 11:00August 22, 2019 06:302d 19h12,52063K
6June 9, 2019 07:00June 9, 2019 18:1511h 15m9,51513K
7March 14, 2019 13:00March 16, 2019 06:451d 17h8,37359K
8July 30, 2019 12:15July 31, 2019 10:0021h 45m6,15120K
9August 11, 2019 17:45August 16, 2019 09:454d 16h6,08325K
10February 24, 2019 07:00February 26, 2019 07:002d5,99231K

Outage episodes by size in 2019: 221 reached 100+ customers, 96 reached 1,000+ customers, 5 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 2019, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Duke Energy Ohio Inc20185.3 hrs1.542.4 hrs1.15
Butler Rural Electric Coop Inc - (OH)20184.7 hrs2.391.5 hrs1.11
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 2019; 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, 2019, 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/2019/ohio/hamilton-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON