massoutage

County annual report · FIPS 29203

2023 Shannon County, MO Power Outage Report

In 2023, customers in Shannon County, MO went without power for an average of 48.2 hours, a total of 154K customer-hours (Missouri average 9.4 hours). That ranks 2nd worst of 114 Missouri counties and 113th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
48.2
3,195 customers
Customer-hours out
154K
Peak customers out
3,293
Outages ≥1,000 out
1
0 of 10,000+ · 190 total
Longest outage
8d 9h
began March 27, 2023
Rank in state
2nd/114
113th of 2,977 US

Compared with MO, the US and 2022

Shannon County, MO average hours without power per customer compared with state and national averages, 2023Shannon County 48.2 hours, Missouri average 9.4 hours, US average 7.1 hours, Shannon County, 2022 5.0 hoursShannon CountyShannon County48.2hMissouri averageMissouri average9.4hUS averageUS average7.1hShannon County, 2022Shannon County, 20225.0h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

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Shannon County, MO customer-hours without power by month, 2023Jan 133K, Feb 1,149, Mar 3,936, Apr 3,540, May 1,159, Jun 1,967, Jul 4,022, Aug 2,055, Sep 1,922, Oct 355, Nov 765, Dec 374050k100k150k133KJan1,149Feb3,936Mar3,540Apr1,159May1,967Jun4,022Jul2,055Aug1,922Sep355Oct765Nov374Dec
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Customer-hours; January was the worst month.

Shannon County year over year

CSVJSON
Shannon County, MO: average hours without power per customer by year2015: no data; 2016: no data; 2017: 1.6h; 2018: 0.4h, coverage 80%; 2019: 11.8h, coverage 95%; 2020: 10.4h, coverage 95%; 2021: 2.8h, coverage 95%; 2022: 5.0h, coverage 95%; 2023: 48.2h; 2024: 17.8h; 2025: 20.0h02040600%50%100%n/a2015n/a20161.6h20170.4h201811.8h201910.4h20202.8h20215.0h202248.2h202317.8h202420.0h2025
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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 Shannon County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1January 25, 2023 04:30January 28, 2023 22:453d 18h3,293133K
2June 29, 2023 21:30June 29, 2023 23:452h 15m7581,326
3April 15, 2023 23:00April 16, 2023 17:3018h 30m6992,123
4July 4, 2023 20:30July 5, 2023 03:457h 15m5802,379
5August 14, 2023 18:45August 15, 2023 00:005h 15m570810
6June 10, 2023 13:30June 10, 2023 14:1545m438329
7August 27, 2023 05:00August 27, 2023 07:002h333666
8September 6, 2023 07:45September 6, 2023 13:155h 30m333918
9November 26, 2023 17:00November 26, 2023 19:152h 15m291583
10March 25, 2023 04:15March 27, 2023 07:302d 3h2191,178

Outage episodes by size in 2023: 23 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 Shannon County reported on EIA Form 861 for 2023, 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)202324.4 hrs-8.5 hrs-
Intercounty Electric Coop Assn - (MO)20237.7 hrs2.622.8 hrs1.70
Ozark Border Electric Coop-----
Howell-Oregon Elec Coop, Inc-----
City of Winona - (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 n/a of Missouri's customers in 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 3,195 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. Shannon County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Shannon County, MO annual power outage report, 2023, 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/2023/missouri/shannon-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON