massoutage

County annual report · FIPS 27137

2021 St. Louis County, MN Power Outage Report

In 2021, customers in St. Louis County, MN went without power for an average of 4.0 hours, a total of 514K customer-hours (Minnesota average 2.1 hours). That ranks 8th worst of 79 Minnesota counties and 1529th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
4.0
127,172 customers
Customer-hours out
514K
Peak customers out
10,565
Outages ≥1,000 out
34
1 of 10,000+ · 742 total
Longest outage
4d 6h
began October 21, 2021
Rank in state
8th/79
1529th of 2,974 US

Compared with MN, the US and 2020

St. Louis County, MN average hours without power per customer compared with state and national averages, 2021St. Louis County 4.0 hours, Minnesota average 2.1 hours, US average 8.9 hours, St. Louis County, 2020 3.3 hoursSt. Louis CountySt. Louis County4.0hMinnesota averageMinnesota average2.1hUS averageUS average8.9hSt. Louis County, 2020St. Louis County, 20…3.3h
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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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St. Louis County, MN customer-hours without power by month, 2021Jan 2,982, Feb 5,747, Mar 4,868, Apr 16K, May 34K, Jun 99K, Jul 91K, Aug 41K, Sep 41K, Oct 16K, Nov 134K, Dec 28K050k100k150k2,982Jan5,747Feb4,868Mar16KApr34KMay99KJun91KJul41KAug41KSep16KOct134KNov28KDec
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Customer-hours; November was the worst month.

St. Louis County year over year

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St. Louis County, MN: average hours without power per customer by year2015: 0.9h; 2016: 20.7h; 2017: 3.1h; 2018: 5.5h, coverage 71%; 2019: 2.2h, coverage 71%; 2020: 3.3h, coverage 80%; 2021: 4.0h, coverage 80%; 2022: 7.1h, coverage 80%; 2023: 3.5h; 2024: 4.0h; 2025: 3.5h01020300%50%100%0.9h201520.7h20163.1h20175.5h20182.2h20193.3h20204.0h20217.1h20223.5h20234.0h20243.5h2025
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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 St. Louis 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
1July 26, 2021 20:00July 28, 2021 00:451d 4h10,56539K
2June 26, 2021 11:00June 27, 2021 14:301d 3h4,5324,694
3June 14, 2021 20:15June 16, 2021 20:302d4,39726K
4May 25, 2021 19:00May 26, 2021 09:3014h 30m3,63111K
5July 23, 2021 22:45July 26, 2021 02:452d 4h3,47636K
6June 5, 2021 04:15June 9, 2021 01:003d 20h3,03216K
7June 17, 2021 01:15June 18, 2021 13:451d 12h2,85313K
8June 18, 2021 14:30June 21, 2021 20:303d 6h2,76816K
9September 14, 2021 07:30September 14, 2021 10:152h 45m2,7483,011
10September 6, 2021 13:45September 10, 2021 05:003d 15h2,5556,467

Outage episodes by size in 2021: 160 reached 100+ customers, 34 reached 1,000+ customers, 1 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 St. Louis 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
ALLETE, Inc.20212.5 hrs1.452.1 hrs1.34
Lake Country Power20215.1 hrs2.132.7 hrs1.69
North Star Electric Coop, Inc20183.2 hrs1.342.9 hrs0.84
Cooperative L&P Assn Lake County20186.8 hrs1.995.0 hrs1.98
City of Biwabik - (MN)-----
City of Buhl - (MN)-----
City of Ely - (MN)-----
City of Gilbert-----
City of Mountain Iron - (MN)-----
City of Virginia - (MN)-----
Hibbing Public Utilities Comm-----
Proctor Public Utilities Comm-----

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 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 127,172 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. St. Louis County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), St. Louis County, MN 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/minnesota/st-louis-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON