massoutage

County annual report · FIPS 27021

2018 Cass County, MN Power Outage Report

In 2018, customers in Cass County, MN went without power for an average of 5.2 hours, a total of 125K customer-hours (Minnesota average 2.0 hours). That ranks 13th worst of 69 Minnesota counties and 1003rd of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
5.2
23,771 customers
Customer-hours out
125K
Peak customers out
1,998
Outages ≥1,000 out
9
0 of 10,000+ · 714 total
Longest outage
2d 20h
began June 28, 2018
Rank in state
13th/69
1003rd of 2,798 US

Compared with MN, the US and 2017

Cass County, MN average hours without power per customer compared with state and national averages, 2018Cass County 5.2 hours, Minnesota average 2.0 hours, US average 5.6 hours, Cass County, 2017 5.8 hoursCass CountyCass County5.2hMinnesota averageMinnesota average2.0hUS averageUS average5.6hCass County, 2017Cass County, 20175.8h
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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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Cass County, MN customer-hours without power by month, 2018Jan 5,505, Feb 1,591, Mar 4,956, Apr 1,371, May 13K, Jun 20K, Jul 21K, Aug 14K, Sep 18K, Oct 15K, Nov 6,300, Dec 3,775010k20k30k5,505Jan1,591Feb4,956Mar1,371Apr13KMay20KJun21KJul14KAug18KSep15KOct6,300Nov3,775Dec
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Customer-hours; July was the worst month.

Cass County year over year

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Cass County, MN: average hours without power per customer by year2015: 7.3h; 2016: 41.8h; 2017: 5.8h; 2018: 5.2h, coverage 71%; 2019: 3.6h, coverage 71%; 2020: 6.9h, coverage 80%; 2021: 4.9h, coverage 80%; 2022: 27.3h, coverage 80%; 2023: 3.6h; 2024: 7.8h; 2025: 9.9h02040600%50%100%7.3h201541.8h20165.8h20175.2h20183.6h20196.9h20204.9h202127.3h20223.6h20237.8h20249.9h2025
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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 Minnesota customers tracked each year.

Biggest outages in Cass County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 11, 2018 15:00June 11, 2018 17:152h 15m1,998508
2September 18, 2018 14:00September 18, 2018 19:155h 15m1,9537,821
3October 3, 2018 23:45October 4, 2018 19:1519h 30m1,8557,096
4June 28, 2018 18:00July 1, 2018 14:302d 20h1,56512K
5March 5, 2018 19:00March 5, 2018 22:303h 30m1,4931,591
6July 4, 2018 12:00July 5, 2018 01:1513h 15m1,2675,599
7June 6, 2018 05:00June 6, 2018 07:002h1,1612,255
8December 28, 2018 00:45December 28, 2018 09:308h 45m1,1592,500
9May 29, 2018 20:45May 30, 2018 20:3023h 45m1,0078,202
10July 12, 2018 04:30July 13, 2018 02:3022h9768,264

Outage episodes by size in 2018: 74 reached 100+ customers, 9 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 Cass 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
Otter Tail Power Co20181.8 hrs1.301.7 hrs1.23
ALLETE, Inc.20182.6 hrs1.492.2 hrs1.39
Lake Country Power201812.7 hrs2.923.7 hrs1.91
Todd-Wadena Electric Coop20182.4 hrs0.702.4 hrs0.68
Beltrami Electric Coop, Inc20171.6 hrs0.791.6 hrs0.79
Itasca-Mantrap Co-op Electrical Assn20181.7 hrs1.011.7 hrs1.01
Crow Wing Cooperative Power & Light Comp201886 min0.7374 min0.70

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 71% of Minnesota's customers in 2018; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 23,771 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. Cass County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Cass County, MN 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/minnesota/cass-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON