massoutage

County annual report · FIPS 26003

2018 Alger County, MI Power Outage Report

In 2018, customers in Alger County, MI went without power for an average of 2.9 hours, a total of 13K customer-hours (Michigan average 10.0 hours). That ranks 64th worst of 80 Michigan counties and 1557th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
2.9
4,553 customers
Customer-hours out
13K
Peak customers out
889
Outages ≥1,000 out
0
0 of 10,000+ · 104 total
Longest outage
1d 12h
began September 21, 2018
Rank in state
64th/80
1557th of 2,798 US

Compared with MI, the US and 2017

Alger County, MI average hours without power per customer compared with state and national averages, 2018Alger County 2.9 hours, Michigan average 10.0 hours, US average 5.6 hours, Alger County, 2017 0.9 hoursAlger CountyAlger County2.9hMichigan averageMichigan average10.0hUS averageUS average5.6hAlger County, 2017Alger County, 20170.9h
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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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Alger County, MI customer-hours without power by month, 2018Jan 0, Feb 0, Mar 8, Apr 106, May 2,704, Jun 335, Jul 39, Aug 873, Sep 5,837, Oct 2,928, Nov 144, Dec 1902k4k6k0Jan0Feb8Mar106Apr2,704May335Jun39Jul873Aug5,837Sep2,928Oct144Nov19Dec
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Customer-hours; September was the worst month.

Alger County year over year

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Alger County, MI: average hours without power per customer by year2015: 3.2h; 2016: 0.3h; 2017: 0.9h; 2018: 2.9h, coverage 91%; 2019: 6.1h, coverage 96%; 2020: 15.1h, coverage 95%; 2021: 3.3h, coverage 95%; 2022: 6.5h, coverage 96%; 2023: 15.5h; 2024: 2.2h; 2025: 14.9h051015200%50%100%3.2h20150.3h20160.9h20172.9h20186.1h201915.1h20203.3h20216.5h202215.5h20232.2h202414.9h2025
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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 Alger County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 18, 2018 17:00September 18, 2018 18:001h889451
2October 5, 2018 11:30October 5, 2018 12:301h665334
3October 4, 2018 06:45October 4, 2018 19:3012h 45m6241,962
4September 21, 2018 05:30September 22, 2018 18:151d 12h4275,140
5October 27, 2018 15:00October 27, 2018 15:4545m358269
6September 5, 2018 14:15September 5, 2018 15:0045m309156
7May 4, 2018 07:30May 4, 2018 16:459h 15m2962,644
8August 17, 2018 14:30August 17, 2018 17:453h 15m295665
9June 15, 2018 18:00June 16, 2018 00:306h 30m282322
10October 15, 2018 12:15October 15, 2018 14:452h 30m65132

Outage episodes by size in 2018: 9 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 Alger 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
Alger-Delta Coop Electric Assn201874 min0.3374 min0.33

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 ÷ 4,553 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. Alger County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Alger 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/alger-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON