massoutage

County annual report · FIPS 22057

2015 Lafourche Parish, LA Power Outage Report

In 2015, customers in Lafourche Parish, LA went without power for an average of 13.9 hours, a total of 497K customer-hours (Louisiana average 5.8 hours). That ranks 5th worst of 64 Louisiana counties and 183rd of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
13.9
35,705 customers
Customer-hours out
497K
Peak customers out
18,097
Outages ≥1,000 out
30
1 of 10,000+ · 596 total
Longest outage
6d 10h
began April 27, 2015
Rank in state
5th/64
183rd of 2,484 US

Compared with LA, the US

Lafourche Parish, LA average hours without power per customer compared with state and national averages, 2015Lafourche Parish 13.9 hours, Louisiana average 5.8 hours, US average 2.9 hoursLafourche ParishLafourche Parish13.9hLouisiana averageLouisiana average5.8hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Lafourche Parish, LA customer-hours without power by month, 2015Jan 14K, Feb 4,176, Mar 6,371, Apr 296K, May 53K, Jun 17K, Jul 57K, Aug 7,146, Sep 8,255, Oct 8,998, Nov 19K, Dec 6,7760100k200k300k14KJan4,176Feb6,371Mar296KApr53KMay17KJun57KJul7,146Aug8,255Sep8,998Oct19KNov6,776Dec
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Customer-hours; April 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, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 28, 2015 19:15May 28, 2015 22:453h 30m18,09719K
2April 27, 2015 14:45May 4, 2015 01:156d 10h8,393294K
3July 25, 2015 23:15July 26, 2015 09:1510h6,91329K
4July 29, 2015 19:15July 29, 2015 20:151h6,8453,381
5January 22, 2015 13:15January 22, 2015 17:304h 15m5,10413K
6November 1, 2015 05:00November 3, 2015 00:301d 19h5,09711K
7July 31, 2015 17:45July 31, 2015 20:453h4,9434,687
8June 6, 2015 07:45June 6, 2015 09:151h 30m4,9375,650
9May 5, 2015 15:15May 5, 2015 20:455h 30m4,9362,501
10July 16, 2015 14:45July 16, 2015 15:0015m4,6091,152

Outage episodes by size in 2015: 89 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 2015, 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 LLC20156.2 hrs2.082.9 hrs1.63
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 n/a of Louisiana's customers in 2015; 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, 2015, 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/2015/louisiana/lafourche-parish

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