massoutage

County annual report · FIPS 46039

2023 Deuel County, SD Power Outage Report

In 2023, customers in Deuel County, SD went without power for an average of 10.2 hours, a total of 15K customer-hours (South Dakota average 2.3 hours). That ranks 5th worst of 61 South Dakota counties and 822nd of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
10.2
1,505 customers
Customer-hours out
15K
Peak customers out
1,137
Outages ≥1,000 out
1
0 of 10,000+ · 168 total
Longest outage
5d 21h
began January 3, 2023
Rank in state
5th/61
822nd of 2,977 US

Compared with SD, the US and 2022

Deuel County, SD average hours without power per customer compared with state and national averages, 2023Deuel County 10.2 hours, South Dakota average 2.3 hours, US average 7.1 hours, Deuel County, 2022 49.7 hoursDeuel CountyDeuel County10.2hSouth Dakota averageSouth Dakota average2.3hUS averageUS average7.1hDeuel County, 2022Deuel County, 202249.7h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

CSVJSON
Deuel County, SD customer-hours without power by month, 2023Jan 5,417, Feb 167, Mar 817, Apr 2,182, May 466, Jun 1,060, Jul 937, Aug 47, Sep 164, Oct 1,705, Nov 84, Dec 2,36302k4k6k5,417Jan167Feb817Mar2,182Apr466May1,060Jun937Jul47Aug164Sep1,705Oct84Nov2,363Dec
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Customer-hours; January was the worst month.

Deuel County year over year

CSVJSON
Deuel County, SD: average hours without power per customer by year2015: no data; 2016: no data; 2017: no data; 2018: no data; 2019: 2.2h, coverage 87%; 2020: 6.5h, coverage 79%; 2021: 5.4h, coverage 79%; 2022: 49.7h, coverage 89%; 2023: 10.2h; 2024: 6.0h; 2025: 6.3h02040600%50%100%n/a2015n/a2016n/a2017n/a20182.2h20196.5h20205.4h202149.7h202210.2h20236.0h20246.3h2025
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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 South Dakota customers tracked each year.

Biggest outages in Deuel 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 25, 2023 07:00January 25, 2023 17:3010h 30m1,1371,427
2April 4, 2023 21:30April 4, 2023 22:451h 15m961567
3October 4, 2023 03:45October 4, 2023 13:309h 45m8891,421
4December 25, 2023 08:45December 26, 2023 05:1520h 30m6211,805
5June 14, 2023 05:00June 14, 2023 07:302h 30m435870
6July 2, 2023 23:15July 3, 2023 00:151h200200
7December 1, 2023 16:45December 1, 2023 20:003h 15m19166
8May 14, 2023 06:00May 14, 2023 08:002h190176
9January 21, 2023 15:00January 23, 2023 21:452d 6h176368
10April 10, 2023 00:30April 10, 2023 05:305h175875

Outage episodes by size in 2023: 21 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 Deuel 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
NorthWestern Energy - (SD)20231.9 hrs1.3774 min1.03
Sioux Valley SW Elec Coop202360 min1.4660 min1.46
H-D Electric Coop Inc20182.6 hrs1.521.6 hrs1.14
Whetstone Valley Elec Coop Inc201873 min0.6442 min0.43
WAPA-- Western Area Power Administration-----
Codington-Clark 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 n/a of South Dakota's customers in 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 1,505 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. Deuel County has data for 2019–2025.

Cite this report

MassOutage (massoutage.com), Deuel County, SD 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/south-dakota/deuel-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON