massoutage

County annual report · FIPS 46023

2019 Charles Mix County, SD Power Outage Report

In 2019, customers in Charles Mix County, SD went without power for an average of 0.0 hours, a total of 2 customer-hours (South Dakota average 3.8 hours). That ranks 58th worst of 58 South Dakota counties and 2937th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
0.0
4,915 customers
Customer-hours out
2
Peak customers out
1
Outages ≥1,000 out
0
0 of 10,000+ · 1 total
Longest outage
1h 45m
began December 25, 2019
Rank in state
58th/58
2937th of 2,945 US

Compared with SD, the US

Charles Mix County, SD average hours without power per customer compared with state and national averages, 2019Charles Mix County 0.0 hours, South Dakota average 3.8 hours, US average 4.7 hoursCharles Mix CountyCharles Mix County0.0hSouth Dakota averageSouth Dakota average3.8hUS averageUS average4.7h
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Average hours without power per customer in 2019.

Month by month

CSVJSON
Charles Mix County, SD customer-hours without power by month, 2019Jan 0, Feb 0, Mar 0, Apr 0, May 0, Jun 0, Jul 0, Aug 0, Sep 0, Oct 0, Nov 0, Dec 200.511.520Jan0Feb0Mar0Apr0May0Jun0Jul0Aug0Sep0Oct0Nov2Dec
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Customer-hours; December was the worst month.

Charles Mix County year over year

CSVJSON
Charles Mix County, SD: average hours without power per customer by year2015: no data; 2016: no data; 2017: no data; 2018: no data; 2019: 0.0h, coverage 87%; 2020: 6.4h, coverage 79%; 2021: 2.5h, coverage 79%; 2022: 0.8h, coverage 89%; 2023: 2.3h; 2024: 3.6h; 2025: 0.9h024680%50%100%n/a2015n/a2016n/a2017n/a20180.0h20196.4h20202.5h20210.8h20222.3h20233.6h20240.9h2025
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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 South Dakota customers tracked each year.

Biggest outages in Charles Mix County, 2019

The 1 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 25, 2019 19:00December 25, 2019 20:451h 45m12

Outage episodes by size in 2019: 0 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 Charles Mix 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
NorthWestern Energy - (SD)20181.9 hrs1.241.6 hrs1.13
WAPA-- Western Area Power Administration-----
Douglas Electric Coop, Inc-----
Charles Mix Electric Assn, Inc-----
Town of Pickstown - (SD)-----

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 ÷ 4,915 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. Charles Mix County has data for 2019–2025.

Cite this report

MassOutage (massoutage.com), Charles Mix 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/charles-mix-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON
Charles Mix County by year:202520242023202220212020
Live outages in Charles Mix County2019 South Dakota report2019 US report