massoutage

County annual report · FIPS 38019

2020 Cavalier County, ND Power Outage Report

In 2020, customers in Cavalier County, ND went without power for an average of 3.3 hours, a total of 3,035 customer-hours (North Dakota average 1.3 hours). That ranks 10th worst of 51 North Dakota counties and 1797th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
3.3
928 customers
Customer-hours out
3,035
Peak customers out
222
Outages ≥1,000 out
0
0 of 10,000+ · 22 total
Longest outage
7h 45m
began August 8, 2020
Rank in state
10th/51
1797th of 3,019 US

Compared with ND, the US

Cavalier County, ND average hours without power per customer compared with state and national averages, 2020Cavalier County 3.3 hours, North Dakota average 1.3 hours, US average 8.7 hoursCavalier CountyCavalier County3.3hNorth Dakota averageNorth Dakota average1.3hUS averageUS average8.7h
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Average hours without power per customer in 2020.

Month by month

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Cavalier County, ND customer-hours without power by month, 2020Jan 102, Feb 0, Mar 0, Apr 88, May 0, Jun 524, Jul 1,012, Aug 672, Sep 604, Oct 0, Nov 0, Dec 3305001k1.5k102Jan0Feb0Mar88Apr0May524Jun1,012Jul672Aug604Sep0Oct0Nov33Dec
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Customer-hours; July was the worst month.

Cavalier County year over year

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Cavalier County, ND: average hours without power per customer by year2015: no data; 2016: no data; 2017: no data; 2018: no data; 2019: no data; 2020: 3.3h, coverage 66%; 2021: 2.6h, coverage 66%; 2022: 1.1h, coverage 66%; 2023: 2.5h; 2024: 5.6h; 2025: 8.1h02.557.5100%50%100%n/a2015n/a2016n/a2017n/a2018n/a20193.3h20202.6h20211.1h20222.5h20235.6h20248.1h2025
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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 North Dakota customers tracked each year.

Biggest outages in Cavalier County, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1January 31, 2020 15:45January 31, 2020 16:0015m22256
2April 8, 2020 01:30April 8, 2020 01:4515m22256
3January 10, 2020 17:00January 10, 2020 17:1515m18546
4April 22, 2020 16:15April 22, 2020 16:3015m13033
5July 1, 2020 00:00July 1, 2020 06:156h 15m130780
6August 20, 2020 11:15August 20, 2020 14:153h130108
7August 29, 2020 19:45August 29, 2020 21:151h 30m130195
8June 17, 2020 07:30June 17, 2020 09:151h 45m108189
9June 18, 2020 05:15June 18, 2020 05:3015m10827
10July 17, 2020 20:30July 17, 2020 23:303h108232

Outage episodes by size in 2020: 11 reached 100+ customers, 0 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 Cavalier County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Otter Tail Power Co20201.6 hrs1.401.6 hrs1.40
Nodak Electric Coop Inc20204.0 hrs1.592.5 hrs1.22
Cavalier Rural Elec Coop, Inc-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 66% of North Dakota's customers in 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 928 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. Cavalier County has data for 2020–2025.

Cite this report

MassOutage (massoutage.com), Cavalier County, ND 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/north-dakota/cavalier-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON