massoutage

County annual report · FIPS 38063

2020 Nelson County, ND Power Outage Report

In 2020, customers in Nelson County, ND went without power for an average of 1.7 hours, a total of 2,095 customer-hours (North Dakota average 1.3 hours). That ranks 22nd worst of 51 North Dakota counties and 2381st of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
1.7
1,239 customers
Customer-hours out
2,095
Peak customers out
1,121
Outages ≥1,000 out
1
0 of 10,000+ · 9 total
Longest outage
20h 15m
began July 8, 2020
Rank in state
22nd/51
2381st of 3,019 US

Compared with ND, the US

Nelson County, ND average hours without power per customer compared with state and national averages, 2020Nelson County 1.7 hours, North Dakota average 1.3 hours, US average 8.7 hoursNelson CountyNelson County1.7hNorth 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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Nelson County, ND customer-hours without power by month, 2020Jan 0, Feb 0, Mar 0, Apr 0, May 0, Jun 603, Jul 1,326, Aug 0, Sep 0, Oct 166, Nov 0, Dec 005001k1.5k0Jan0Feb0Mar0Apr0May603Jun1,326Jul0Aug0Sep166Oct0Nov0Dec
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Customer-hours; July was the worst month.

Nelson County year over year

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Nelson 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: 1.7h, coverage 66%; 2021: 0.3h, coverage 66%; 2022: 11.0h, coverage 66%; 2023: 1.0h; 2024: 3.1h; 2025: 2.4h0510150%50%100%n/a2015n/a2016n/a2017n/a2018n/a20191.7h20200.3h202111.0h20221.0h20233.1h20242.4h2025
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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 Nelson County, 2020

The 9 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 25, 2020 02:00July 25, 2020 05:153h 15m1,1211,159
2June 8, 2020 03:30June 8, 2020 14:1510h 45m542596
3October 22, 2020 04:15October 22, 2020 06:001h 45m95166
4July 17, 2020 21:30July 17, 2020 22:451h 15m7541
5July 8, 2020 11:15July 8, 2020 11:3015m6717
6June 25, 2020 19:30June 25, 2020 19:4515m318
7July 14, 2020 07:00July 14, 2020 07:4545m3123
8July 8, 2020 07:45July 8, 2020 10:302h 45m2466
9July 8, 2020 17:45July 9, 2020 14:0020h 15m120

Outage episodes by size in 2020: 2 reached 100+ customers, 1 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 Nelson 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
WAPA-- Western Area Power Administration-----
City of Lakota - (ND)-----

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 ÷ 1,239 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. Nelson County has data for 2020–2025.

Cite this report

MassOutage (massoutage.com), Nelson 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/nelson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON