massoutage

County annual report · FIPS 22101

2022 St. Mary Parish, LA Power Outage Report

In 2022, customers in St. Mary Parish, LA went without power for an average of 2.9 hours, a total of 81K customer-hours (Louisiana average 6.9 hours). That ranks 58th worst of 64 Louisiana counties and 1976th of 2,976 nationally.

Summary data CSVJSON
Avg hrs / customer
2.9
27,709 customers
Customer-hours out
81K
Peak customers out
7,342
Outages ≥1,000 out
11
0 of 10,000+ · 506 total
Longest outage
33d 15h
began April 17, 2022
Rank in state
58th/64
1976th of 2,976 US

Compared with LA, the US and 2021

St. Mary Parish, LA average hours without power per customer compared with state and national averages, 2022St. Mary Parish 2.9 hours, Louisiana average 6.9 hours, US average 8.3 hours, St. Mary Parish, 2021 8.5 hoursSt. Mary ParishSt. Mary Parish2.9hLouisiana averageLouisiana average6.9hUS averageUS average8.3hSt. Mary Parish, 2021St. Mary Parish, 20218.5h
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Average hours without power per customer in 2022; last bar is this county in 2021.

Month by month

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St. Mary Parish, LA customer-hours without power by month, 2022Jan 1,530, Feb 2,027, Mar 5,636, Apr 6,874, May 15K, Jun 11K, Jul 4,966, Aug 5,509, Sep 3,173, Oct 4,247, Nov 11K, Dec 9,45305k10k15k20k1,530Jan2,027Feb5,636Mar6,874Apr15KMay11KJun4,966Jul5,509Aug3,173Sep4,247Oct11KNov9,453Dec
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Customer-hours; May was the worst month.

St. Mary Parish year over year

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St. Mary Parish, LA: average hours without power per customer by year2015: 1.6h; 2016: 2.7h; 2017: 3.2h; 2018: 2.5h, coverage 89%; 2019: 33.2h, coverage 89%; 2020: 10.8h, coverage 90%; 2021: 8.5h, coverage 90%; 2022: 2.9h, coverage 91%; 2023: 3.1h; 2024: 18.7h; 2025: 1.7h0102030400%50%100%1.6h20152.7h20163.2h20172.5h201833.2h201910.8h20208.5h20212.9h20223.1h202318.7h20241.7h2025
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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 Louisiana customers tracked each year.

Biggest outages in St. Mary Parish, 2022

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 24, 2022 01:30December 24, 2022 07:306h7,3424,387
2May 21, 2022 22:15May 21, 2022 23:451h 30m4,1503,507
3November 10, 2022 15:45November 10, 2022 17:151h 30m3,7301,870
4November 9, 2022 18:15November 10, 2022 01:006h 45m2,5551,033
5April 2, 2022 01:45April 2, 2022 06:154h 30m1,7831,873
6October 9, 2022 05:45October 9, 2022 15:159h 30m1,7793,064
7June 8, 2022 18:45June 11, 2022 02:452d 8h1,5203,159
8March 6, 2022 13:45March 6, 2022 14:451h1,5171,517
9November 22, 2022 13:45November 22, 2022 18:304h 45m1,4241,872
10November 6, 2022 16:15November 6, 2022 18:152h1,2992,015

Outage episodes by size in 2022: 54 reached 100+ customers, 11 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 St. Mary Parish reported on EIA Form 861 for 2022, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Cleco Power LLC-----
Colquitt Electric Membership Corp-----
South Louisiana Elec Coop Assn-----
Morgan City - (LA)-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 91% of Louisiana's customers in 2022; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 27,709 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. St. Mary Parish has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), St. Mary Parish, LA annual power outage report, 2022, 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/2022/louisiana/st-mary-parish

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON