massoutage

County annual report · FIPS 46123

2020 Tripp County, SD Power Outage Report

In 2020, customers in Tripp County, SD went without power for an average of 0.0 hours, a total of 4 customer-hours (South Dakota average 4.6 hours). That ranks 62nd worst of 62 South Dakota counties and 3015th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
0.0
4,744 customers
Customer-hours out
4
Peak customers out
2
Outages ≥1,000 out
0
0 of 10,000+ · 3 total
Longest outage
2h 30m
began November 3, 2020
Rank in state
62nd/62
3015th of 3,019 US

Compared with SD, the US and 2019

Tripp County, SD average hours without power per customer compared with state and national averages, 2020Tripp County 0.0 hours, South Dakota average 4.6 hours, US average 8.7 hours, Tripp County, 2019 0.0 hoursTripp CountyTripp County0.0hSouth Dakota averageSouth Dakota average4.6hUS averageUS average8.7hTripp County, 2019Tripp County, 20190.0h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

CSVJSON
Tripp County, SD customer-hours without power by month, 2020Jan 0, Feb 0, Mar 1, Apr 0, May 1, Jun 0, Jul 0, Aug 0, Sep 0, Oct 0, Nov 3, Dec 001230Jan0Feb1Mar0Apr1May0Jun0Jul0Aug0Sep0Oct3Nov0Dec
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Customer-hours; November was the worst month.

Tripp County year over year

CSVJSON
Tripp 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: 0.0h, coverage 79%; 2021: 0.0h, coverage 79%; 2022: 0.5h, coverage 89%; 2023: 0.0h; 2024: 1.2h; 2025: 1.1h00.511.50%50%100%n/a2015n/a2016n/a2017n/a20180.0h20190.0h20200.0h20210.5h20220.0h20231.2h20241.1h2025
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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 Tripp County, 2020

The 3 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 5, 2020 03:45March 5, 2020 04:0015m21
2May 15, 2020 03:30May 15, 2020 04:0030m21
3November 3, 2020 18:15November 3, 2020 20:452h 30m13

Outage episodes by size in 2020: 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 Tripp County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
WAPA-- Western Area Power Administration-----
Rosebud Electric Coop Inc-----
Winner Municipal Utility-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 79% of South Dakota's customers in 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 4,744 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. Tripp County has data for 2019–2025.

Cite this report

MassOutage (massoutage.com), Tripp County, SD annual power outage report, 2020, 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/). https://massoutage.com/reports/2020/south-dakota/tripp-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON
Tripp County by year:202520242023202220212019
Live outages in Tripp County2020 South Dakota report2020 US report