massoutage

County annual report · FIPS 27111

2020 Otter Tail County, MN Power Outage Report

In 2020, customers in Otter Tail County, MN went without power for an average of 4.7 hours, a total of 205K customer-hours (Minnesota average 2.2 hours). That ranks 9th worst of 81 Minnesota counties and 1459th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
4.7
43,936 customers
Customer-hours out
205K
Peak customers out
9,909
Outages ≥1,000 out
12
0 of 10,000+ · 548 total
Longest outage
3d 1h
began September 5, 2020
Rank in state
9th/81
1459th of 3,019 US

Compared with MN, the US and 2019

Otter Tail County, MN average hours without power per customer compared with state and national averages, 2020Otter Tail County 4.7 hours, Minnesota average 2.2 hours, US average 8.7 hours, Otter Tail County, 2019 1.7 hoursOtter Tail CountyOtter Tail County4.7hMinnesota averageMinnesota average2.2hUS averageUS average8.7hOtter Tail County, 2019Otter Tail County, 2…1.7h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

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Otter Tail County, MN customer-hours without power by month, 2020Jan 11K, Feb 3,382, Mar 2,368, Apr 6,302, May 4,257, Jun 53K, Jul 74K, Aug 9,690, Sep 20K, Oct 8,059, Nov 7,122, Dec 4,738020k40k60k80k11KJan3,382Feb2,368Mar6,302Apr4,257May53KJun74KJul9,690Aug20KSep8,059Oct7,122Nov4,738Dec
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Customer-hours; July was the worst month.

Otter Tail County year over year

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Otter Tail County, MN: average hours without power per customer by year2015: 2.1h; 2016: 3.0h; 2017: 2.8h; 2018: 2.2h, coverage 71%; 2019: 1.7h, coverage 71%; 2020: 4.7h, coverage 80%; 2021: 2.9h, coverage 80%; 2022: 10.8h, coverage 80%; 2023: 3.8h; 2024: 6.1h; 2025: 3.9h0510150%50%100%2.1h20153.0h20162.8h20172.2h20181.7h20194.7h20202.9h202110.8h20223.8h20236.1h20243.9h2025
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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 Otter Tail County, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 9, 2020 05:45June 10, 2020 04:0022h 15m9,90944K
2July 8, 2020 08:45July 10, 2020 04:151d 19h3,87145K
3July 1, 2020 09:00July 2, 2020 04:3019h 30m3,4676,674
4November 18, 2020 23:15November 19, 2020 04:305h 15m2,0252,622
5April 2, 2020 04:30April 2, 2020 14:4510h 15m1,9394,964
6January 11, 2020 12:15January 11, 2020 16:454h 30m1,8336,214
7September 10, 2020 23:00September 11, 2020 10:0011h1,72316K
8June 15, 2020 17:15June 15, 2020 23:456h 30m1,6324,297
9January 21, 2020 19:30January 21, 2020 20:451h 15m1,3311,664
10July 6, 2020 18:00July 6, 2020 21:003h1,190600

Outage episodes by size in 2020: 79 reached 100+ customers, 12 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 Otter Tail County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Otter Tail Power Co20201.6 hrs1.401.6 hrs1.40
ALLETE, Inc.20203.0 hrs1.422.0 hrs1.22
Lake Region Electric Cooperative - (MN)20206.5 hrs2.712.0 hrs1.23
Todd-Wadena Electric Coop20182.4 hrs0.702.4 hrs0.68
Runestone Electric Assn20202.2 hrs1.1060 min0.70
City of Wadena - (MN)20182 min0.07--
WAPA-- Western Area Power Administration-----
City of Henning - (MN)-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 80% of Minnesota's customers in 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 43,936 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. Otter Tail County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Otter Tail County, MN annual power outage report, 2020, 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/2020/minnesota/otter-tail-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON