massoutage

County annual report · FIPS 27053

2018 Hennepin County, MN Power Outage Report

In 2018, customers in Hennepin County, MN went without power for an average of 1.9 hours, a total of 1.2M customer-hours (Minnesota average 2.0 hours). That ranks 23rd worst of 69 Minnesota counties and 1912th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
1.9
624,985 customers
Customer-hours out
1.2M
Peak customers out
19,946
Outages ≥1,000 out
62
2 of 10,000+ · 569 total
Longest outage
10d 21h
began September 2, 2018
Rank in state
23rd/69
1912th of 2,798 US

Compared with MN, the US and 2017

Hennepin County, MN average hours without power per customer compared with state and national averages, 2018Hennepin County 1.9 hours, Minnesota average 2.0 hours, US average 5.6 hours, Hennepin County, 2017 2.5 hoursHennepin CountyHennepin County1.9hMinnesota averageMinnesota average2.0hUS averageUS average5.6hHennepin County, 2017Hennepin County, 20172.5h
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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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Hennepin County, MN customer-hours without power by month, 2018Jan 41K, Feb 25K, Mar 71K, Apr 43K, May 141K, Jun 213K, Jul 240K, Aug 124K, Sep 157K, Oct 74K, Nov 27K, Dec 26K0100k200k300k41KJan25KFeb71KMar43KApr141KMay213KJun240KJul124KAug157KSep74KOct27KNov26KDec
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Customer-hours; July was the worst month.

Hennepin County year over year

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Hennepin County, MN: average hours without power per customer by year2015: 1.9h; 2016: 1.2h; 2017: 2.5h; 2018: 1.9h, coverage 71%; 2019: 1.5h, coverage 71%; 2020: 2.7h, coverage 80%; 2021: 2.1h, coverage 80%; 2022: 3.6h, coverage 80%; 2023: 3.5h; 2024: 6.6h; 2025: 3.6h024680%50%100%1.9h20151.2h20162.5h20171.9h20181.5h20192.7h20202.1h20213.6h20223.5h20236.6h20243.6h2025
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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 Hennepin 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 28, 2018 11:00July 3, 2018 13:005d 2h19,946101K
2September 17, 2018 11:15September 26, 2018 12:009d18,546110K
3July 24, 2018 13:00July 29, 2018 09:454d 20h8,65543K
4June 10, 2018 12:45June 15, 2018 08:154d 19h8,44870K
5March 9, 2018 12:30March 10, 2018 00:4512h 15m8,33435K
6June 24, 2018 15:15June 28, 2018 07:303d 16h5,43923K
7May 25, 2018 10:15June 5, 2018 05:4510d 19h5,330106K
8January 12, 2018 15:30January 13, 2018 09:3018h5,2315,613
9July 11, 2018 10:45July 14, 2018 08:302d 21h5,19440K
10August 13, 2018 08:00August 18, 2018 11:005d 3h5,05952K

Outage episodes by size in 2018: 186 reached 100+ customers, 62 reached 1,000+ customers, 2 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 Hennepin 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
Northern States Power Co - Minnesota201890 min0.7369 min0.62
Minnesota Valley Electric Coop201873 min1.3271 min1.30
Connexus Energy201840 min0.5037 min0.47
Wright-Hennepin Coop Elec Assn201847 min0.5532 min0.39
City of Elk River201810 min0.1710 min0.17
City of Anoka-----

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 ÷ 624,985 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. Hennepin County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Hennepin 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/hennepin-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON