massoutage

County annual report · FIPS 46039

2019 Deuel County, SD Power Outage Report

In 2019, customers in Deuel County, SD went without power for an average of 2.2 hours, a total of 3,272 customer-hours (South Dakota average 3.8 hours). That ranks 22nd worst of 58 South Dakota counties and 1981st of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
2.2
1,505 customers
Customer-hours out
3,272
Peak customers out
116
Outages ≥1,000 out
0
0 of 10,000+ · 61 total
Longest outage
1d 7h
began July 25, 2019
Rank in state
22nd/58
1981st of 2,945 US

Compared with SD, the US

Deuel County, SD average hours without power per customer compared with state and national averages, 2019Deuel County 2.2 hours, South Dakota average 3.8 hours, US average 4.7 hoursDeuel CountyDeuel County2.2hSouth Dakota averageSouth Dakota average3.8hUS averageUS average4.7h
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Average hours without power per customer in 2019.

Month by month

CSVJSON
Deuel County, SD customer-hours without power by month, 2019Jan 0, Feb 0, Mar 0, Apr 0, May 0, Jun 6, Jul 1,138, Aug 32, Sep 118, Oct 110, Nov 1,058, Dec 81005001k1.5k0Jan0Feb0Mar0Apr0May6Jun1,138Jul32Aug118Sep110Oct1,058Nov810Dec
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Customer-hours; July was the worst month.

Deuel County year over year

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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, 2019

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 1, 2019 07:00July 1, 2019 15:458h 45m116686
2July 20, 2019 11:45July 20, 2019 13:001h 15m92115
3July 17, 2019 05:45July 17, 2019 13:307h 45m90164
4December 29, 2019 14:30December 30, 2019 04:0013h 30m64225
5November 18, 2019 01:00November 18, 2019 06:155h 15m62326
6November 18, 2019 09:15November 18, 2019 17:458h 30m62527
7November 5, 2019 16:00November 5, 2019 18:002h4590
8November 6, 2019 20:45November 6, 2019 22:301h 45m4579
9December 28, 2019 02:00December 28, 2019 19:0017h29490
10December 3, 2019 18:15December 3, 2019 19:151h2828

Outage episodes by size in 2019: 1 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 Deuel County reported on EIA Form 861 for 2019, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Otter Tail Power Co20181.8 hrs1.301.7 hrs1.23
NorthWestern Energy - (SD)20181.9 hrs1.241.6 hrs1.13
Sioux Valley SW Elec Coop20184.0 hrs3.622.0 hrs2.88
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 87% of South Dakota's customers in 2019; 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, 2019, 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/2019/south-dakota/deuel-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON