massoutage

County annual report · FIPS 26071

2020 Iron County, MI Power Outage Report

In 2020, customers in Iron County, MI went without power for an average of 4.4 hours, a total of 26K customer-hours (Michigan average 9.8 hours). That ranks 70th worst of 83 Michigan counties and 1507th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
4.4
5,890 customers
Customer-hours out
26K
Peak customers out
876
Outages ≥1,000 out
0
0 of 10,000+ · 209 total
Longest outage
1d 18h
began August 10, 2020
Rank in state
70th/83
1507th of 3,019 US

Compared with MI, the US and 2019

Iron County, MI average hours without power per customer compared with state and national averages, 2020Iron County 4.4 hours, Michigan average 9.8 hours, US average 8.7 hours, Iron County, 2019 0.9 hoursIron CountyIron County4.4hMichigan averageMichigan average9.8hUS averageUS average8.7hIron County, 2019Iron County, 20190.9h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

CSVJSON
Iron County, MI customer-hours without power by month, 2020Jan 33, Feb 10, Mar 677, Apr 58, May 263, Jun 1,292, Jul 4,675, Aug 11K, Sep 3,902, Oct 2,523, Nov 2,142, Dec 4205k10k15k33Jan10Feb677Mar58Apr263May1,292Jun4,675Jul11KAug3,902Sep2,523Oct2,142Nov42Dec
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Customer-hours; August was the worst month.

Iron County year over year

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Iron County, MI: average hours without power per customer by year2015: 2.4h; 2016: 5.0h; 2017: 9.3h; 2018: 0.3h, coverage 91%; 2019: 0.9h, coverage 96%; 2020: 4.4h, coverage 95%; 2021: 22.6h, coverage 95%; 2022: 23.6h, coverage 96%; 2023: 8.4h; 2024: 3.8h; 2025: 23.4h01020300%50%100%2.4h20155.0h20169.3h20170.3h20180.9h20194.4h202022.6h202123.6h20228.4h20233.8h202423.4h2025
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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 Michigan customers tracked each year.

Biggest outages in Iron County, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 21, 2020 15:30August 22, 2020 03:0011h 30m8762,926
2July 18, 2020 10:30July 18, 2020 23:4513h 15m789775
3July 9, 2020 02:15July 10, 2020 06:301d 4h4192,009
4September 25, 2020 03:00September 25, 2020 09:156h 15m4061,730
5October 22, 2020 08:30October 22, 2020 13:455h 15m3471,600
6September 15, 2020 16:15September 15, 2020 17:301h 15m325245
7August 10, 2020 02:00August 11, 2020 20:451d 18h2506,266
8November 1, 2020 12:00November 2, 2020 03:3015h 30m2471,047
9September 2, 2020 05:15September 2, 2020 07:152h236472
10September 9, 2020 23:30September 10, 2020 02:303h210524

Outage episodes by size in 2020: 23 reached 100+ customers, 0 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 Iron 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
Upper Peninsula Power Company20204.9 hrs2.303.4 hrs1.77
Upper Michigan Energy Resources Corp.20204.2 hrs2.713.7 hrs2.56
City of Crystal Falls-----

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 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 5,890 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. Iron County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Iron County, MI 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/michigan/iron-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON