massoutage

County annual report · FIPS 26071

2017 Iron County, MI Power Outage Report

In 2017, customers in Iron County, MI went without power for an average of 9.3 hours, a total of 55K customer-hours (Michigan average 6.0 hours). That ranks 24th worst of 80 Michigan counties and 578th of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
9.3
5,890 customers
Customer-hours out
55K
Peak customers out
1,520
Outages ≥1,000 out
3
0 of 10,000+ · 199 total
Longest outage
2d 7h
began April 10, 2017
Rank in state
24th/80
578th of 2,786 US

Compared with MI, the US and 2016

Iron County, MI average hours without power per customer compared with state and national averages, 2017Iron County 9.3 hours, Michigan average 6.0 hours, US average 7.4 hours, Iron County, 2016 5.0 hoursIron CountyIron County9.3hMichigan averageMichigan average6.0hUS averageUS average7.4hIron County, 2016Iron County, 20165.0h
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Average hours without power per customer in 2017; last bar is this county in 2016.

Month by month

CSVJSON
Iron County, MI customer-hours without power by month, 2017Jan 31, Feb 309, Mar 15K, Apr 19K, May 4,113, Jun 7,766, Jul 687, Aug 2,017, Sep 4,219, Oct 1,846, Nov 34, Dec 3405k10k15k20k31Jan309Feb15KMar19KApr4,113May7,766Jun687Jul2,017Aug4,219Sep1,846Oct34Nov34Dec
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Customer-hours; April 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, 2017

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 22, 2017 17:30September 24, 2017 00:151d 6h1,5204,075
2April 10, 2017 03:15April 12, 2017 10:302d 7h1,38118K
3March 7, 2017 11:15March 9, 2017 17:152d 6h1,06215K
4June 25, 2017 05:45June 25, 2017 09:153h 30m4941,606
5August 1, 2017 22:00August 2, 2017 04:156h 15m364637
6August 27, 2017 19:15August 27, 2017 21:152h345518
7May 13, 2017 20:00May 13, 2017 23:303h 30m343783
8October 24, 2017 14:00October 24, 2017 22:158h 15m3421,654
9May 10, 2017 13:30May 10, 2017 15:302h341570
10June 10, 2017 17:45June 11, 2017 04:3010h 45m3192,004

Outage episodes by size in 2017: 17 reached 100+ customers, 3 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 2017, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Upper Peninsula Power Company201710.0 hrs2.202.9 hrs1.30
Upper Michigan Energy Resources Corp.20179.2 hrs1.852.5 hrs0.98
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 n/a of Michigan's customers in 2017; 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, 2017, 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/2017/michigan/iron-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON