massoutage

County annual report · FIPS 26153

2021 Schoolcraft County, MI Power Outage Report

In 2021, customers in Schoolcraft County, MI went without power for an average of 10.0 hours, a total of 56K customer-hours (Michigan average 26.6 hours). That ranks 57th worst of 83 Michigan counties and 782nd of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
10.0
5,611 customers
Customer-hours out
56K
Peak customers out
1,985
Outages ≥1,000 out
7
0 of 10,000+ · 286 total
Longest outage
2d 15h
began December 16, 2021
Rank in state
57th/83
782nd of 2,974 US

Compared with MI, the US and 2020

Schoolcraft County, MI average hours without power per customer compared with state and national averages, 2021Schoolcraft County 10.0 hours, Michigan average 26.6 hours, US average 8.9 hours, Schoolcraft County, 2020 5.0 hoursSchoolcraft CountySchoolcraft County10.0hMichigan averageMichigan average26.6hUS averageUS average8.9hSchoolcraft County, 2020Schoolcraft County, …5.0h
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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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Schoolcraft County, MI customer-hours without power by month, 2021Jan 21, Feb 573, Mar 4,170, Apr 4,470, May 2,944, Jun 719, Jul 672, Aug 4,652, Sep 1,077, Oct 4,699, Nov 2,473, Dec 30K010k20k30k21Jan573Feb4,170Mar4,470Apr2,944May719Jun672Jul4,652Aug1,077Sep4,699Oct2,473Nov30KDec
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Customer-hours; December was the worst month.

Schoolcraft County year over year

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Schoolcraft County, MI: average hours without power per customer by year2015: 1.1h; 2016: 0.3h; 2017: 0.0h; 2018: 1.3h, coverage 91%; 2019: 1.2h, coverage 96%; 2020: 5.0h, coverage 95%; 2021: 10.0h, coverage 95%; 2022: 10.1h, coverage 96%; 2023: 8.7h; 2024: 5.6h; 2025: 11.4h0510150%50%100%1.1h20150.3h20160.0h20171.3h20181.2h20195.0h202010.0h202110.1h20228.7h20235.6h202411.4h2025
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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 Schoolcraft 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 04:30December 18, 2021 20:152d 15h1,98514K
2December 11, 2021 11:30December 12, 2021 23:151d 11h1,73415K
3April 21, 2021 23:15April 22, 2021 00:151h1,1731,173
4October 6, 2021 08:15October 6, 2021 11:153h1,1533,459
5October 12, 2021 07:45October 12, 2021 09:301h 45m1,153880
6March 28, 2021 12:30March 28, 2021 14:302h1,1461,719
7March 28, 2021 20:00March 28, 2021 22:302h 30m1,146861
8August 29, 2021 00:45August 29, 2021 01:3045m843315
9August 11, 2021 02:30August 11, 2021 06:003h 30m8422,741
10April 5, 2021 18:30April 5, 2021 22:304h6522,478

Outage episodes by size in 2021: 38 reached 100+ customers, 7 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 Schoolcraft 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
Upper Peninsula Power Company20214.6 hrs1.482.5 hrs1.16
Alger-Delta Coop Electric Assn20213.2 hrs1.0155 min0.99
Cloverland Electric Co-op202117.0 hrs3.874.8 hrs2.39

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 ÷ 5,611 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. Schoolcraft County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Schoolcraft 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/schoolcraft-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON