massoutage

County annual report · FIPS 22109

2024 Terrebonne Parish, LA Power Outage Report

In 2024, customers in Terrebonne Parish, LA went without power for an average of 50.2 hours, a total of 2.0M customer-hours (Louisiana average 15.8 hours). That ranks 5th worst of 64 Louisiana counties and 203rd of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
50.2
40,577 customers
Customer-hours out
2.0M
Peak customers out
25,703
Outages ≥1,000 out
11
1 of 10,000+ · 608 total
Longest outage
10d 22h
began September 11, 2024
Rank in state
5th/64
203rd of 2,990 US

Compared with LA, the US and 2023

Terrebonne Parish, LA average hours without power per customer compared with state and national averages, 2024Terrebonne Parish 50.2 hours, Louisiana average 15.8 hours, US average 12.6 hours, Terrebonne Parish, 2023 3.1 hoursTerrebonne ParishTerrebonne Parish50.2hLouisiana averageLouisiana average15.8hUS averageUS average12.6hTerrebonne Parish, 2023Terrebonne Parish, 2…3.1h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

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Terrebonne Parish, LA customer-hours without power by month, 2024Jan 28K, Feb 1,344, Mar 6,668, Apr 9,220, May 10K, Jun 5,486, Jul 4,673, Aug 8,357, Sep 1.9M, Oct 1,752, Nov 12K, Dec 4,5600500k1M1.5M2M28KJan1,344Feb6,668Mar9,220Apr10KMay5,486Jun4,673Jul8,357Aug1.9MSep1,752Oct12KNov4,560Dec
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Customer-hours; September was the worst month.

Terrebonne Parish year over year

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Terrebonne Parish, LA: average hours without power per customer by year2015: 3.6h; 2016: 3.0h; 2017: 6.0h; 2018: 5.7h, coverage 89%; 2019: 26.8h, coverage 89%; 2020: 38.6h, coverage 90%; 2021: 296.5h, coverage 90%; 2022: 8.2h, coverage 91%; 2023: 3.1h; 2024: 50.2h; 2025: 2.4h01002003000%50%100%3.6h20153.0h20166.0h20175.7h201826.8h201938.6h2020296.5h20218.2h20223.1h202350.2h20242.4h2025
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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 Terrebonne Parish, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 11, 2024 18:00September 22, 2024 16:1510d 22h25,7031.9M
2January 19, 2024 06:15January 19, 2024 09:153h4,50310K
3April 29, 2024 22:15May 1, 2024 20:451d 22h3,7111,705
4April 3, 2024 12:15April 3, 2024 19:457h 30m3,5424,920
5July 1, 2024 21:45July 2, 2024 05:157h 30m3,271826
6March 27, 2024 13:15March 27, 2024 20:006h 45m2,5761,970
7June 12, 2024 13:00June 13, 2024 02:1513h 15m1,8332,017
8September 3, 2024 15:15September 3, 2024 19:454h 30m1,6853,358
9January 9, 2024 05:15January 10, 2024 22:451d 17h1,46912K
10September 23, 2024 23:15September 26, 2024 20:452d 21h1,0745,062

Outage episodes by size in 2024: 52 reached 100+ customers, 11 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 Terrebonne Parish reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Entergy Louisiana LLC202410.2 hrs2.043.6 hrs1.55
South Louisiana Elec Coop Assn-----
Terrebonne Parish Consol Gov't-----

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 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 40,577 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. Terrebonne Parish has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Terrebonne Parish, LA annual power outage report, 2024, 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/2024/louisiana/terrebonne-parish

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