massoutage

County annual report · FIPS 38031

2023 Foster County, ND Power Outage Report

In 2023, customers in Foster County, ND went without power for an average of 28.2 hours, a total of 37K customer-hours (North Dakota average 4.1 hours). That ranks 4th worst of 51 North Dakota counties and 261st of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
28.2
1,325 customers
Customer-hours out
37K
Peak customers out
1,148
Outages ≥1,000 out
3
0 of 10,000+ · 28 total
Longest outage
1d 21h
began December 26, 2023
Rank in state
4th/51
261st of 2,977 US

Compared with ND, the US and 2022

Foster County, ND average hours without power per customer compared with state and national averages, 2023Foster County 28.2 hours, North Dakota average 4.1 hours, US average 7.1 hours, Foster County, 2022 0.2 hoursFoster CountyFoster County28.2hNorth Dakota averageNorth Dakota average4.1hUS averageUS average7.1hFoster County, 2022Foster County, 20220.2h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

CSVJSON
Foster County, ND customer-hours without power by month, 2023Jan 1,976, Feb 124, Mar 0, Apr 44, May 1, Jun 2,210, Jul 124, Aug 112, Sep 212, Oct 0, Nov 114, Dec 33K010k20k30k40k1,976Jan124Feb0Mar44Apr1May2,210Jun124Jul112Aug212Sep0Oct114Nov33KDec
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Customer-hours; December was the worst month.

Foster County year over year

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Foster 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: 0.4h, coverage 66%; 2021: 0.1h, coverage 66%; 2022: 0.2h, coverage 66%; 2023: 28.2h; 2024: 0.2h; 2025: 5.9h01020300%50%100%n/a2015n/a2016n/a2017n/a2018n/a20190.4h20200.1h20210.2h202228.2h20230.2h20245.9h2025
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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 Foster County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1January 4, 2023 10:00January 4, 2023 11:301h 30m1,1481,271
2June 7, 2023 22:45June 8, 2023 00:301h 45m1,1461,899
3December 26, 2023 23:45December 28, 2023 21:301d 21h1,09832K
4January 4, 2023 17:45January 4, 2023 19:001h 15m645655
5September 22, 2023 19:00September 22, 2023 20:301h 30m16649
6September 23, 2023 16:30September 23, 2023 21:305h166163
7April 5, 2023 19:30April 5, 2023 20:1545m5743
8July 13, 2023 16:45July 13, 2023 18:301h 45m5495
9August 25, 2023 08:00August 25, 2023 10:002h54108
10June 1, 2023 00:00June 1, 2023 07:157h 15m49310

Outage episodes by size in 2023: 6 reached 100+ customers, 3 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 Foster County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Otter Tail Power Co20232.4 hrs1.781.9 hrs1.68
Northern Plains Electric Coop20239.2 hrs2.146.2 hrs2.00
WAPA-- Western Area Power Administration-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of North Dakota's customers in 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 1,325 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. Foster County has data for 2020–2025.

Cite this report

MassOutage (massoutage.com), Foster County, ND annual power outage report, 2023, 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/2023/north-dakota/foster-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON