massoutage

County annual report · FIPS 22101

2016 St. Mary Parish, LA Power Outage Report

In 2016, customers in St. Mary Parish, LA went without power for an average of 2.7 hours, a total of 75K customer-hours (Louisiana average 6.8 hours). That ranks 57th worst of 64 Louisiana counties and 1084th of 2,391 nationally.

Summary data CSVJSON
Avg hrs / customer
2.7
27,709 customers
Customer-hours out
75K
Peak customers out
6,046
Outages ≥1,000 out
8
0 of 10,000+ · 710 total
Longest outage
1d 8h
began December 18, 2016
Rank in state
57th/64
1084th of 2,391 US

Compared with LA, the US and 2015

St. Mary Parish, LA average hours without power per customer compared with state and national averages, 2016St. Mary Parish 2.7 hours, Louisiana average 6.8 hours, US average 3.9 hours, St. Mary Parish, 2015 1.6 hoursSt. Mary ParishSt. Mary Parish2.7hLouisiana averageLouisiana average6.8hUS averageUS average3.9hSt. Mary Parish, 2015St. Mary Parish, 20151.6h
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Average hours without power per customer in 2016; last bar is this county in 2015.

Month by month

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St. Mary Parish, LA customer-hours without power by month, 2016Jan 9,954, Feb 4,237, Mar 12K, Apr 9,014, May 10K, Jun 3,330, Jul 4,549, Aug 7,047, Sep 1,717, Oct 937, Nov 2,120, Dec 9,71005k10k15k9,954Jan4,237Feb12KMar9,014Apr10KMay3,330Jun4,549Jul7,047Aug1,717Sep937Oct2,120Nov9,710Dec
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Customer-hours; March 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, 2016

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1January 9, 2016 08:45January 9, 2016 10:452h6,0464,694
2May 20, 2016 01:15May 20, 2016 23:0021h 45m4,6198,596
3August 5, 2016 20:15August 6, 2016 01:155h2,0662,207
4April 9, 2016 21:30April 10, 2016 01:153h 45m1,7995,225
5December 2, 2016 17:00December 2, 2016 18:151h 15m1,7821,781
6December 4, 2016 07:30December 4, 2016 09:151h 45m1,7791,968
7March 19, 2016 13:00March 19, 2016 16:003h1,7643,240
8March 1, 2016 16:45March 1, 2016 18:301h 45m1,038575
9March 27, 2016 12:00March 27, 2016 19:157h 15m8833,548
10March 25, 2016 12:00March 25, 2016 15:153h 15m8271,858

Outage episodes by size in 2016: 83 reached 100+ customers, 8 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 2016, 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 n/a of Louisiana's customers in 2016; 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, 2016, 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/2016/louisiana/st-mary-parish

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON