massoutage

County annual report · FIPS 38077

2021 Richland County, ND Power Outage Report

In 2021, customers in Richland County, ND went without power for an average of 4.5 hours, a total of 22K customer-hours (North Dakota average 1.0 hours). That ranks 6th worst of 51 North Dakota counties and 1442nd of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
4.5
5,021 customers
Customer-hours out
22K
Peak customers out
1,067
Outages ≥1,000 out
1
0 of 10,000+ · 216 total
Longest outage
19d 13h
began July 24, 2021
Rank in state
6th/51
1442nd of 2,974 US

Compared with ND, the US and 2020

Richland County, ND average hours without power per customer compared with state and national averages, 2021Richland County 4.5 hours, North Dakota average 1.0 hours, US average 8.9 hours, Richland County, 2020 1.0 hoursRichland CountyRichland County4.5hNorth Dakota averageNorth Dakota average1.0hUS averageUS average8.9hRichland County, 2020Richland County, 20201.0h
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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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Richland County, ND customer-hours without power by month, 2021Jan 302, Feb 89, Mar 197, Apr 225, May 1,509, Jun 7,734, Jul 3,326, Aug 1,235, Sep 5,046, Oct 1,083, Nov 1,704, Dec 602k4k6k8k302Jan89Feb197Mar225Apr1,509May7,734Jun3,326Jul1,235Aug5,046Sep1,083Oct1,704Nov6Dec
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Customer-hours; June was the worst month.

Richland County year over year

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Richland County, ND: average hours without power per customer by year2015: 0.8h; 2016: 0.2h; 2017: 0.5h; 2018: 2.9h, coverage 51%; 2019: 2.6h, coverage 53%; 2020: 1.0h, coverage 66%; 2021: 4.5h, coverage 66%; 2022: 5.3h, coverage 66%; 2023: 6.8h; 2024: 3.9h; 2025: 7.2h024680%50%100%0.8h20150.2h20160.5h20172.9h20182.6h20191.0h20204.5h20215.3h20226.8h20233.9h20247.2h2025
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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 Richland County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 8, 2021 03:15June 9, 2021 00:0020h 45m1,0676,930
2July 20, 2021 20:30July 20, 2021 20:4515m575144
3January 15, 2021 16:15January 15, 2021 16:3015m567142
4January 13, 2021 19:15January 13, 2021 19:3015m554139
5March 1, 2021 17:00March 1, 2021 17:1515m435109
6July 24, 2021 05:15August 12, 2021 19:0019d 13h4263,595
7August 26, 2021 20:45August 26, 2021 21:1530m27771
8September 28, 2021 14:00September 28, 2021 17:453h 45m259468
9July 17, 2021 22:30July 17, 2021 22:4515m25865
10May 18, 2021 23:45May 19, 2021 01:301h 45m256448

Outage episodes by size in 2021: 17 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 Richland 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
Otter Tail Power Co202186 min1.1374 min1.09
Cass County Elec Coop Inc202147 min0.5424 min0.39
Dakota Valley Elec Coop Inc20211.7 hrs0.4177 min0.36
Montana-Dakota Utilities Co-----
Traverse Electric 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 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 5,021 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. Richland County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Richland County, ND 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/north-dakota/richland-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON