massoutage

County annual report · FIPS 26043

2021 Dickinson County, MI Power Outage Report

In 2021, customers in Dickinson County, MI went without power for an average of 8.1 hours, a total of 98K customer-hours (Michigan average 26.6 hours). That ranks 64th worst of 83 Michigan counties and 928th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
8.1
12,110 customers
Customer-hours out
98K
Peak customers out
4,214
Outages ≥1,000 out
6
0 of 10,000+ · 218 total
Longest outage
2d 15h
began July 27, 2021
Rank in state
64th/83
928th of 2,974 US

Compared with MI, the US and 2020

Dickinson County, MI average hours without power per customer compared with state and national averages, 2021Dickinson County 8.1 hours, Michigan average 26.6 hours, US average 8.9 hours, Dickinson County, 2020 3.7 hoursDickinson CountyDickinson County8.1hMichigan averageMichigan average26.6hUS averageUS average8.9hDickinson County, 2020Dickinson County, 20…3.7h
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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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Dickinson County, MI customer-hours without power by month, 2021Jan 74, Feb 194, Mar 224, Apr 2,611, May 823, Jun 12K, Jul 32K, Aug 3,904, Sep 3,141, Oct 6,194, Nov 3,868, Dec 34K010k20k30k40k74Jan194Feb224Mar2,611Apr823May12KJun32KJul3,904Aug3,141Sep6,194Oct3,868Nov34KDec
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Customer-hours; December was the worst month.

Dickinson County year over year

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Dickinson County, MI: average hours without power per customer by year2015: 1.0h; 2016: 0.8h; 2017: 7.7h; 2018: 1.0h, coverage 91%; 2019: 7.0h, coverage 96%; 2020: 3.7h, coverage 95%; 2021: 8.1h, coverage 95%; 2022: 15.7h, coverage 96%; 2023: 6.2h; 2024: 6.6h; 2025: 21.3h01020300%50%100%1.0h20150.8h20167.7h20171.0h20187.0h20193.7h20208.1h202115.7h20226.2h20236.6h202421.3h2025
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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 Dickinson 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
1December 16, 2021 06:15December 18, 2021 18:002d 11h4,21433K
2October 26, 2021 12:30October 26, 2021 18:005h 30m2,3705,927
3July 27, 2021 04:45July 29, 2021 20:002d 15h1,97931K
4August 11, 2021 18:15August 11, 2021 21:453h 30m1,237926
5May 9, 2021 21:00May 9, 2021 21:3030m1,139285
6June 8, 2021 22:15June 10, 2021 01:301d 3h1,09111K
7November 11, 2021 19:30November 12, 2021 00:455h 15m9643,470
8April 4, 2021 16:30April 4, 2021 22:155h 45m8552,567
9September 21, 2021 03:45September 21, 2021 09:305h 45m4711,244
10August 29, 2021 07:30August 29, 2021 19:3012h4702,203

Outage episodes by size in 2021: 16 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 Dickinson County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Wisconsin Electric Power Co20217.0 hrs1.131.7 hrs0.73
Upper Peninsula Power Company20214.6 hrs1.482.5 hrs1.16
Upper Michigan Energy Resources Corp.202113.0 hrs2.154.0 hrs1.50
Alger-Delta Coop Electric Assn20213.2 hrs1.0155 min0.99
City of Norway-----

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 ÷ 12,110 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. Dickinson County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Dickinson 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/dickinson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON