massoutage

County annual report · FIPS 29035

2021 Carter County, MO Power Outage Report

In 2021, customers in Carter County, MO went without power for an average of 2.7 hours, a total of 10K customer-hours (Missouri average 4.5 hours). That ranks 70th worst of 115 Missouri counties and 1951st of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
2.7
3,796 customers
Customer-hours out
10K
Peak customers out
1,123
Outages ≥1,000 out
1
0 of 10,000+ · 149 total
Longest outage
1d 2h
began February 2, 2021
Rank in state
70th/115
1951st of 2,974 US

Compared with MO, the US and 2020

Carter County, MO average hours without power per customer compared with state and national averages, 2021Carter County 2.7 hours, Missouri average 4.5 hours, US average 8.9 hours, Carter County, 2020 8.3 hoursCarter CountyCarter County2.7hMissouri averageMissouri average4.5hUS averageUS average8.9hCarter County, 2020Carter County, 20208.3h
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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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Carter County, MO customer-hours without power by month, 2021Jan 96, Feb 200, Mar 335, Apr 191, May 218, Jun 940, Jul 335, Aug 2,376, Sep 1,002, Oct 617, Nov 1,214, Dec 2,81701k2k3k96Jan200Feb335Mar191Apr218May940Jun335Jul2,376Aug1,002Sep617Oct1,214Nov2,817Dec
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Customer-hours; December was the worst month.

Carter County year over year

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Carter County, MO: average hours without power per customer by year2015: no data; 2016: no data; 2017: no data; 2018: no data; 2019: 1.8h, coverage 95%; 2020: 8.3h, coverage 95%; 2021: 2.7h, coverage 95%; 2022: 3.7h, coverage 95%; 2023: 16.1h; 2024: 17.9h; 2025: 21.1h01020300%50%100%n/a2015n/a2016n/a2017n/a20181.8h20198.3h20202.7h20213.7h202216.1h202317.9h202421.1h2025
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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 Carter 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 11, 2021 05:15December 11, 2021 09:154h1,1231,660
2December 7, 2021 07:15December 7, 2021 09:001h 45m436763
3November 9, 2021 23:00November 10, 2021 01:452h 45m4291,017
4June 20, 2021 22:45June 21, 2021 00:452h272544
5August 13, 2021 03:30August 13, 2021 10:307h2351,002
6September 6, 2021 07:45September 6, 2021 14:156h 30m191738
7August 13, 2021 15:45August 13, 2021 19:153h 30m174380
8July 13, 2021 18:45July 13, 2021 20:001h 15m147183
9August 25, 2021 22:45August 25, 2021 23:451h121121
10September 8, 2021 13:45September 8, 2021 14:451h10235

Outage episodes by size in 2021: 10 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 Carter 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
Ozark Border Electric Coop-----

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 ÷ 3,796 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. Carter County has data for 2019–2025.

Cite this report

MassOutage (massoutage.com), Carter 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/). https://massoutage.com/reports/2021/missouri/carter-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON