massoutage

County annual report · FIPS 26021

2021 Berrien County, MI Power Outage Report

In 2021, customers in Berrien County, MI went without power for an average of 94.8 hours, a total of 1.2M customer-hours (Michigan average 26.6 hours). That ranks 4th worst of 83 Michigan counties and 87th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
94.8
12,805 customers
Customer-hours out
1.2M
Peak customers out
16,038
Outages ≥1,000 out
27
1 of 10,000+ · 829 total
Longest outage
4d 11h
began August 9, 2021
Rank in state
4th/83
87th of 2,974 US

Compared with MI, the US and 2020

Berrien County, MI average hours without power per customer compared with state and national averages, 2021Berrien County 94.8 hours, Michigan average 26.6 hours, US average 8.9 hours, Berrien County, 2020 80.2 hoursBerrien CountyBerrien County94.8hMichigan averageMichigan average26.6hUS averageUS average8.9hBerrien County, 2020Berrien County, 202080.2h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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Berrien County, MI customer-hours without power by month, 2021Jan 30K, Feb 13K, Mar 32K, Apr 16K, May 13K, Jun 207K, Jul 50K, Aug 563K, Sep 50K, Oct 116K, Nov 37K, Dec 88K0200k400k600k30KJan13KFeb32KMar16KApr13KMay207KJun50KJul563KAug50KSep116KOct37KNov88KDec
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Customer-hours; August was the worst month.

Berrien County year over year

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Berrien County, MI: average hours without power per customer by year2015: 59.3h; 2016: 60.1h; 2017: 40.5h; 2018: 89.7h, coverage 91%; 2019: 53.5h, coverage 96%; 2020: 80.2h, coverage 95%; 2021: 94.8h, coverage 95%; 2022: 50.7h, coverage 96%; 2023: 34.2h; 2024: 47.9h; 2025: 89.9h02550751000%50%100%59.3h201560.1h201640.5h201789.7h201853.5h201980.2h202094.8h202150.7h202234.2h202347.9h202489.9h2025
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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 Michigan customers tracked each year.

Biggest outages in Berrien County, 2021

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
1August 9, 2021 13:15August 14, 2021 00:154d 11h16,038483K
2June 19, 2021 08:30June 23, 2021 02:303d 18h7,988115K
3September 2, 2021 05:15September 2, 2021 22:3017h 15m7,46414K
4October 11, 2021 13:30October 15, 2021 00:453d 11h6,47894K
5August 24, 2021 21:15August 27, 2021 03:302d 6h4,12747K
6December 11, 2021 00:00December 13, 2021 23:152d 23h4,02150K
7June 24, 2021 09:30June 28, 2021 04:303d 19h3,16447K
8July 7, 2021 13:00July 8, 2021 03:1514h 15m2,99613K
9April 25, 2021 01:00April 25, 2021 08:307h 30m2,4807,318
10November 21, 2021 13:15November 22, 2021 21:301d 8h2,4237,859

Outage episodes by size in 2021: 121 reached 100+ customers, 27 reached 1,000+ customers, 1 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 Berrien 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
Indiana Michigan Power Co202111.2 hrs1.573.8 hrs1.09
Northern Indiana Pub Serv Co20218.8 hrs1.552.9 hrs1.06
Midwest Energy Cooperative - (MI)20149.8 hrs2.234.9 hrs1.87
City of Niles - (MI)-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 95% of Michigan's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 12,805 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. Berrien County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Berrien County, MI 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/michigan/berrien-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON