massoutage

County annual report · FIPS 29065

2021 Dent County, MO Power Outage Report

In 2021, customers in Dent County, MO went without power for an average of 2.4 hours, a total of 11K customer-hours (Missouri average 4.5 hours). That ranks 79th worst of 115 Missouri counties and 2083rd of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
2.4
4,781 customers
Customer-hours out
11K
Peak customers out
410
Outages ≥1,000 out
0
0 of 10,000+ · 243 total
Longest outage
10h 15m
began October 11, 2021
Rank in state
79th/115
2083rd of 2,974 US

Compared with MO, the US and 2020

Dent County, MO average hours without power per customer compared with state and national averages, 2021Dent County 2.4 hours, Missouri average 4.5 hours, US average 8.9 hours, Dent County, 2020 2.8 hoursDent CountyDent County2.4hMissouri averageMissouri average4.5hUS averageUS average8.9hDent County, 2020Dent County, 20202.8h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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Dent County, MO customer-hours without power by month, 2021Jan 1,201, Feb 515, Mar 486, Apr 1,162, May 824, Jun 506, Jul 1,147, Aug 2,088, Sep 244, Oct 926, Nov 807, Dec 1,39401k2k3k1,201Jan515Feb486Mar1,162Apr824May506Jun1,147Jul2,088Aug244Sep926Oct807Nov1,394Dec
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Customer-hours; August was the worst month.

Dent County year over year

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Dent County, MO: average hours without power per customer by year2015: 0.0h; 2016: no data; 2017: 25.3h; 2018: 2.0h, coverage 80%; 2019: 8.5h, coverage 95%; 2020: 2.8h, coverage 95%; 2021: 2.4h, coverage 95%; 2022: 6.3h, coverage 95%; 2023: 18.0h; 2024: 5.4h; 2025: 17.1h01020300%50%100%0.0h2015n/a201625.3h20172.0h20188.5h20192.8h20202.4h20216.3h202218.0h20235.4h202417.1h2025
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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 Missouri customers tracked each year.

Biggest outages in Dent County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 9, 2021 22:45December 10, 2021 00:001h 15m410513
2October 11, 2021 11:00October 11, 2021 21:1510h 15m409548
3November 17, 2021 17:15November 17, 2021 18:451h 30m32783
4July 31, 2021 21:45August 1, 2021 04:306h 45m322727
5April 7, 2021 21:30April 8, 2021 00:002h 30m319637
6August 3, 2021 00:00August 3, 2021 01:301h 30m318477
7May 30, 2021 15:45May 30, 2021 17:452h303605
8December 8, 2021 16:45December 8, 2021 18:001h 15m254198
9November 14, 2021 23:15November 15, 2021 01:152h184279
10June 20, 2021 18:15June 20, 2021 22:304h 15m161273

Outage episodes by size in 2021: 15 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 Dent County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Black River Electric Coop - (MO)20219.1 hrs-5.6 hrs-
Intercounty Electric Coop Assn - (MO)20212.7 hrs1.452.0 hrs1.28
Crawford Electric Coop, Inc20213.4 hrs1.523.4 hrs1.52
City of Salem - (MO)-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 95% of Missouri's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 4,781 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. Dent County has data for 2015, 2017–2025.

Cite this report

MassOutage (massoutage.com), Dent County, MO annual power outage report, 2021, 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/2021/missouri/dent-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON