massoutage

County annual report · FIPS 27009

2021 Benton County, MN Power Outage Report

In 2021, customers in Benton County, MN went without power for an average of 1.4 hours, a total of 27K customer-hours (Minnesota average 2.1 hours). That ranks 38th worst of 79 Minnesota counties and 2514th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
1.4
19,602 customers
Customer-hours out
27K
Peak customers out
1,972
Outages ≥1,000 out
4
0 of 10,000+ · 436 total
Longest outage
17h
began July 19, 2021
Rank in state
38th/79
2514th of 2,974 US

Compared with MN, the US and 2020

Benton County, MN average hours without power per customer compared with state and national averages, 2021Benton County 1.4 hours, Minnesota average 2.1 hours, US average 8.9 hours, Benton County, 2020 3.7 hoursBenton CountyBenton County1.4hMinnesota averageMinnesota average2.1hUS averageUS average8.9hBenton County, 2020Benton County, 20203.7h
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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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Benton County, MN customer-hours without power by month, 2021Jan 431, Feb 169, Mar 281, Apr 596, May 7,395, Jun 2,961, Jul 4,409, Aug 2,943, Sep 2,935, Oct 281, Nov 879, Dec 3,88402k4k6k8k431Jan169Feb281Mar596Apr7,395May2,961Jun4,409Jul2,943Aug2,935Sep281Oct879Nov3,884Dec
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Customer-hours; May was the worst month.

Benton County year over year

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Benton County, MN: average hours without power per customer by year2015: 1.5h; 2016: 1.0h; 2017: 0.9h; 2018: 1.2h, coverage 71%; 2019: 1.9h, coverage 71%; 2020: 3.7h, coverage 80%; 2021: 1.4h, coverage 80%; 2022: 2.3h, coverage 80%; 2023: 2.1h; 2024: 3.0h; 2025: 2.3h012340%50%100%1.5h20151.0h20160.9h20171.2h20181.9h20193.7h20201.4h20212.3h20222.1h20233.0h20242.3h2025
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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 Minnesota customers tracked each year.

Biggest outages in Benton County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 6, 2021 12:00December 6, 2021 16:454h 45m1,9723,525
2May 14, 2021 22:30May 15, 2021 08:009h 30m1,9627,077
3September 22, 2021 06:45September 22, 2021 08:452h1,2022,173
4August 24, 2021 11:00August 24, 2021 23:1512h 15m1,171504
5July 13, 2021 13:45July 13, 2021 20:006h 15m7471,496
6June 4, 2021 18:30June 4, 2021 19:1545m738372
7August 28, 2021 17:15August 28, 2021 23:156h730807
8November 16, 2021 18:45November 16, 2021 20:001h 15m447559
9July 19, 2021 12:00July 20, 2021 05:0017h392714
10June 10, 2021 00:00June 10, 2021 11:1511h 15m3561,809

Outage episodes by size in 2021: 15 reached 100+ customers, 4 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 Benton County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Northern States Power Co - Minnesota20211.8 hrs0.8277 min0.74
ALLETE, Inc.20212.5 hrs1.452.1 hrs1.34
East Central Energy202165 min0.7647 min0.60

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 ÷ 19,602 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. Benton County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Benton 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/benton-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON