massoutage

County annual report · FIPS 26089

2021 Leelanau County, MI Power Outage Report

In 2021, customers in Leelanau County, MI went without power for an average of 43.9 hours, a total of 543K customer-hours (Michigan average 26.6 hours). That ranks 17th worst of 83 Michigan counties and 205th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
43.9
12,357 customers
Customer-hours out
543K
Peak customers out
8,475
Outages ≥1,000 out
6
0 of 10,000+ · 411 total
Longest outage
4d 19h
began December 16, 2021
Rank in state
17th/83
205th of 2,974 US

Compared with MI, the US and 2020

Leelanau County, MI average hours without power per customer compared with state and national averages, 2021Leelanau County 43.9 hours, Michigan average 26.6 hours, US average 8.9 hours, Leelanau County, 2020 24.4 hoursLeelanau CountyLeelanau County43.9hMichigan averageMichigan average26.6hUS averageUS average8.9hLeelanau County, 2020Leelanau County, 202024.4h
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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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Leelanau County, MI customer-hours without power by month, 2021Jan 2,888, Feb 1,625, Mar 2,503, Apr 2,154, May 4,717, Jun 9,674, Jul 4,979, Aug 95K, Sep 16K, Oct 7,821, Nov 14K, Dec 381K0100k200k300k400k2,888Jan1,625Feb2,503Mar2,154Apr4,717May9,674Jun4,979Jul95KAug16KSep7,821Oct14KNov381KDec
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Customer-hours; December was the worst month.

Leelanau County year over year

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Leelanau County, MI: average hours without power per customer by year2015: 51.9h; 2016: 1.4h; 2017: 8.2h; 2018: 9.0h, coverage 91%; 2019: 9.4h, coverage 96%; 2020: 24.4h, coverage 95%; 2021: 43.9h, coverage 95%; 2022: 23.8h, coverage 96%; 2023: 6.2h; 2024: 7.3h; 2025: 27.3h02040600%50%100%51.9h20151.4h20168.2h20179.0h20189.4h201924.4h202043.9h202123.8h20226.2h20237.3h202427.3h2025
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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 Leelanau 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 05:00December 21, 2021 00:454d 19h8,475365K
2August 11, 2021 00:30August 15, 2021 05:454d 5h7,70984K
3December 22, 2021 13:45December 23, 2021 00:3010h 45m2,0593,385
4November 18, 2021 02:15November 18, 2021 09:006h 45m2,0496,233
5December 22, 2021 08:15December 22, 2021 11:453h 30m2,0285,578
6September 14, 2021 19:15September 14, 2021 21:452h 30m1,232364
7October 21, 2021 13:45October 21, 2021 17:454h9501,729
8October 6, 2021 00:00October 6, 2021 02:152h 15m8121,379
9June 14, 2021 07:45June 14, 2021 19:0011h 15m6442,985
10November 21, 2021 22:15November 23, 2021 05:151d 7h6355,358

Outage episodes by size in 2021: 58 reached 100+ customers, 6 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 Leelanau 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
Consumers Energy Co - (MI)202115.2 hrs1.603.8 hrs1.05
Cherryland Electric Coop Inc20218.1 hrs1.3666 min0.65
City of Traverse City - (MI)202137 min0.3437 min0.34
Wolverine Power Supply Coop-----

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 ÷ 12,357 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. Leelanau County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Leelanau 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/leelanau-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON