massoutage

County annual report · FIPS 18029

2021 Dearborn County, IN Power Outage Report

In 2021, customers in Dearborn County, IN went without power for an average of 5.8 hours, a total of 114K customer-hours (Indiana average 4.4 hours). That ranks 21st worst of 92 Indiana counties and 1176th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
5.8
19,563 customers
Customer-hours out
114K
Peak customers out
5,347
Outages ≥1,000 out
6
0 of 10,000+ · 553 total
Longest outage
2d 5h
began June 18, 2021
Rank in state
21st/92
1176th of 2,974 US

Compared with IN, the US and 2020

Dearborn County, IN average hours without power per customer compared with state and national averages, 2021Dearborn County 5.8 hours, Indiana average 4.4 hours, US average 8.9 hours, Dearborn County, 2020 7.7 hoursDearborn CountyDearborn County5.8hIndiana averageIndiana average4.4hUS averageUS average8.9hDearborn County, 2020Dearborn County, 20207.7h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

CSVJSON
Dearborn County, IN customer-hours without power by month, 2021Jan 7,282, Feb 2,081, Mar 5,637, Apr 2,826, May 18K, Jun 57K, Jul 6,453, Aug 2,975, Sep 3,438, Oct 2,920, Nov 1,100, Dec 4,556020k40k60k7,282Jan2,081Feb5,637Mar2,826Apr18KMay57KJun6,453Jul2,975Aug3,438Sep2,920Oct1,100Nov4,556Dec
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Customer-hours; June was the worst month.

Dearborn County year over year

CSVJSON
Dearborn County, IN: average hours without power per customer by year2015: 2.3h; 2016: 1.9h; 2017: 1.3h; 2018: 4.5h, coverage 79%; 2019: 1.9h, coverage 82%; 2020: 7.7h, coverage 86%; 2021: 5.8h, coverage 86%; 2022: 3.5h, coverage 86%; 2023: 3.6h; 2024: 3.1h; 2025: 4.4h024680%50%100%2.3h20151.9h20161.3h20174.5h20181.9h20197.7h20205.8h20213.5h20223.6h20233.1h20244.4h2025
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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 Indiana customers tracked each year.

Biggest outages in Dearborn 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 18, 2021 21:15June 21, 2021 02:302d 5h5,34754K
2May 5, 2021 20:45May 6, 2021 01:455h4,9678,016
3May 15, 2021 02:45May 15, 2021 10:458h1,2929,034
4April 9, 2021 15:00April 9, 2021 16:001h1,1931,193
5June 1, 2021 13:45June 1, 2021 18:455h1,156759
6July 16, 2021 22:45July 18, 2021 00:151d 1h1,0213,770
7January 25, 2021 20:00January 26, 2021 02:156h 15m9612,338
8September 30, 2021 13:30September 30, 2021 15:452h 15m900436
9August 10, 2021 12:15August 10, 2021 18:156h884623
10January 2, 2021 03:30January 2, 2021 05:452h 15m8381,670

Outage episodes by size in 2021: 41 reached 100+ customers, 6 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 Dearborn 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
Duke Energy Indiana, LLC20213.4 hrs1.112.1 hrs0.94
Southeastern Indiana R E M C20215.3 hrs2.243.5 hrs1.91
Whitewater Valley Rural EMC20189.2 hrs1.832.2 hrs1.23
Lawrenceburg Municipal Utils201861 min1.0261 min1.02
Duke Energy-----
City of Rising Sun - (IN)-----
City of Greendale-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 86% of Indiana's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 19,563 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. Dearborn County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Dearborn County, IN 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/indiana/dearborn-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON