massoutage

County annual report · FIPS 27111

2023 Otter Tail County, MN Power Outage Report

In 2023, customers in Otter Tail County, MN went without power for an average of 3.8 hours, a total of 168K customer-hours (Minnesota average 3.0 hours). That ranks 9th worst of 82 Minnesota counties and 1711th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
3.8
43,936 customers
Customer-hours out
168K
Peak customers out
4,957
Outages ≥1,000 out
26
0 of 10,000+ · 756 total
Longest outage
1d 23h
began March 18, 2023
Rank in state
9th/82
1711th of 2,977 US

Compared with MN, the US and 2022

Otter Tail County, MN average hours without power per customer compared with state and national averages, 2023Otter Tail County 3.8 hours, Minnesota average 3.0 hours, US average 7.1 hours, Otter Tail County, 2022 10.8 hoursOtter Tail CountyOtter Tail County3.8hMinnesota averageMinnesota average3.0hUS averageUS average7.1hOtter Tail County, 2022Otter Tail County, 2…10.8h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

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Otter Tail County, MN customer-hours without power by month, 2023Jan 3,700, Feb 3,889, Mar 4,374, Apr 29K, May 21K, Jun 13K, Jul 21K, Aug 37K, Sep 9,354, Oct 12K, Nov 3,857, Dec 9,241010k20k30k40k3,700Jan3,889Feb4,374Mar29KApr21KMay13KJun21KJul37KAug9,354Sep12KOct3,857Nov9,241Dec
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Customer-hours; August 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, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 28, 2023 11:00May 28, 2023 15:154h 15m4,9574,033
2April 6, 2023 06:00April 6, 2023 11:305h 30m2,7546,661
3August 4, 2023 19:00August 4, 2023 21:452h 45m2,6002,255
4August 1, 2023 21:30August 2, 2023 09:3012h2,4587,701
5August 11, 2023 02:30August 11, 2023 07:154h 45m2,4422,910
6August 31, 2023 18:00September 1, 2023 02:308h 30m2,4402,183
7July 17, 2023 04:45July 17, 2023 09:004h 15m2,1573,683
8April 20, 2023 20:00April 22, 2023 00:001d 4h1,95016K
9August 9, 2023 12:30August 9, 2023 22:009h 30m1,9153,885
10August 8, 2023 23:45August 9, 2023 06:156h 30m1,6163,768

Outage episodes by size in 2023: 144 reached 100+ customers, 26 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 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Otter Tail Power Co20232.4 hrs1.781.9 hrs1.68
ALLETE, Inc.20232.0 hrs1.241.7 hrs1.16
Lake Region Electric Cooperative - (MN)20233.5 hrs1.841.7 hrs1.02
Todd-Wadena Electric Coop20182.4 hrs0.702.4 hrs0.68
Runestone Electric Assn202356 min0.5856 min0.58
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 n/a of Minnesota's customers in 2023; 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, 2023, 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/2023/minnesota/otter-tail-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON