massoutage

County annual report · FIPS 26061

2018 Houghton County, MI Power Outage Report

In 2018, customers in Houghton County, MI went without power for an average of 1.2 hours, a total of 34K customer-hours (Michigan average 10.0 hours). That ranks 74th worst of 80 Michigan counties and 2225th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
1.2
27,579 customers
Customer-hours out
34K
Peak customers out
1,197
Outages ≥1,000 out
2
0 of 10,000+ · 298 total
Longest outage
24d 14h
began January 1, 2018
Rank in state
74th/80
2225th of 2,798 US

Compared with MI, the US and 2017

Houghton County, MI average hours without power per customer compared with state and national averages, 2018Houghton County 1.2 hours, Michigan average 10.0 hours, US average 5.6 hours, Houghton County, 2017 0.7 hoursHoughton CountyHoughton County1.2hMichigan averageMichigan average10.0hUS averageUS average5.6hHoughton County, 2017Houghton County, 20170.7h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

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Houghton County, MI customer-hours without power by month, 2018Jan 1,472, Feb 2,507, Mar 639, Apr 705, May 3,024, Jun 7,435, Jul 1,316, Aug 3,584, Sep 4,748, Oct 1,949, Nov 4,750, Dec 1,65402k4k6k8k1,472Jan2,507Feb639Mar705Apr3,024May7,435Jun1,316Jul3,584Aug4,748Sep1,949Oct4,750Nov1,654Dec
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Customer-hours; June was the worst month.

Houghton County year over year

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Houghton County, MI: average hours without power per customer by year2015: 1.3h; 2016: 1.0h; 2017: 0.7h; 2018: 1.2h, coverage 91%; 2019: 2.3h, coverage 96%; 2020: 3.5h, coverage 95%; 2021: 3.3h, coverage 95%; 2022: 3.6h, coverage 96%; 2023: 1.9h; 2024: 1.7h; 2025: 5.7h02460%50%100%1.3h20151.0h20160.7h20171.2h20182.3h20193.5h20203.3h20213.6h20221.9h20231.7h20245.7h2025
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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 Houghton County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 10, 2018 03:00May 10, 2018 13:0010h1,1971,006
2November 9, 2018 23:45November 10, 2018 06:457h1,0373,740
3May 19, 2018 17:30May 19, 2018 21:304h7231,284
4June 17, 2018 06:15June 19, 2018 02:451d 20h7075,178
5August 28, 2018 01:30August 28, 2018 03:151h 45m593926
6August 28, 2018 04:45August 28, 2018 20:4516h5311,397
7October 30, 2018 14:45October 30, 2018 15:0015m436109
8September 21, 2018 10:30September 21, 2018 18:458h 15m366654
9December 13, 2018 13:30December 13, 2018 16:152h 45m337760
10December 15, 2018 12:00December 15, 2018 14:152h 15m326119

Outage episodes by size in 2018: 33 reached 100+ customers, 2 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 Houghton County reported on EIA Form 861 for 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Upper Peninsula Power Company20182.3 hrs1.162.3 hrs1.16
Upper Michigan Energy Resources Corp.20184.1 hrs1.162.4 hrs0.91
Ontonagon County R E A-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 91% of Michigan's customers in 2018; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 27,579 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. Houghton County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Houghton County, MI annual power outage report, 2018, 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/2018/michigan/houghton-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON