massoutage

County annual report · FIPS 22057

2020 Lafourche Parish, LA Power Outage Report

In 2020, customers in Lafourche Parish, LA went without power for an average of 42.1 hours, a total of 1.5M customer-hours (Louisiana average 72.6 hours). That ranks 35th worst of 64 Louisiana counties and 193rd of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
42.1
35,705 customers
Customer-hours out
1.5M
Peak customers out
16,506
Outages ≥1,000 out
30
1 of 10,000+ · 516 total
Longest outage
19d 8h
began October 28, 2020
Rank in state
35th/64
193rd of 3,019 US

Compared with LA, the US and 2019

Lafourche Parish, LA average hours without power per customer compared with state and national averages, 2020Lafourche Parish 42.1 hours, Louisiana average 72.6 hours, US average 8.7 hours, Lafourche Parish, 2019 15.9 hoursLafourche ParishLafourche Parish42.1hLouisiana averageLouisiana average72.6hUS averageUS average8.7hLafourche Parish, 2019Lafourche Parish, 20…15.9h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

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Lafourche Parish, LA customer-hours without power by month, 2020Jan 8,544, Feb 4,557, Mar 3,483, Apr 23K, May 18K, Jun 24K, Jul 31K, Aug 12K, Sep 22K, Oct 766K, Nov 573K, Dec 16K0200k400k600k800k8,544Jan4,557Feb3,483Mar23KApr18KMay24KJun31KJul12KAug22KSep766KOct573KNov16KDec
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Customer-hours; October was the worst month.

Lafourche Parish year over year

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Lafourche Parish, LA: average hours without power per customer by year2015: 13.9h; 2016: 5.2h; 2017: 11.2h; 2018: 7.4h, coverage 89%; 2019: 15.9h, coverage 89%; 2020: 42.1h, coverage 90%; 2021: 555.6h, coverage 90%; 2022: 9.9h, coverage 91%; 2023: 6.9h; 2024: 44.9h; 2025: 4.4h02004006000%50%100%13.9h20155.2h201611.2h20177.4h201815.9h201942.1h2020555.6h20219.9h20226.9h202344.9h20244.4h2025
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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 Lafourche Parish, 2020

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
1October 28, 2020 19:45November 17, 2020 03:4519d 8h16,5061.3M
2June 29, 2020 16:30June 30, 2020 00:308h7,7067,568
3June 30, 2020 12:00June 30, 2020 22:0010h7,0665,670
4November 20, 2020 05:15November 20, 2020 12:307h 15m4,8666,790
5November 20, 2020 13:45November 20, 2020 23:4510h4,33020K
6August 26, 2020 09:30September 1, 2020 21:456d 12h3,22711K
7July 25, 2020 11:30July 25, 2020 22:3011h3,0752,998
8November 25, 2020 13:30November 25, 2020 22:459h 15m3,0233,187
9November 26, 2020 08:45November 26, 2020 16:157h 30m3,0102,637
10October 4, 2020 13:45October 4, 2020 15:001h 15m2,9983,004

Outage episodes by size in 2020: 91 reached 100+ customers, 30 reached 1,000+ customers, 1 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 Lafourche Parish reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Entergy Louisiana LLC202093.2 hrs3.323.5 hrs1.44
South Louisiana Elec Coop Assn-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 90% of Louisiana's customers in 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 35,705 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. Lafourche Parish has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Lafourche Parish, LA annual power outage report, 2020, 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/2020/louisiana/lafourche-parish

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON