massoutage

County annual report · FIPS 22105

2019 Tangipahoa Parish, LA Power Outage Report

In 2019, customers in Tangipahoa Parish, LA went without power for an average of 24.9 hours, a total of 1.4M customer-hours (Louisiana average 10.2 hours). That ranks 12th worst of 64 Louisiana counties and 159th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
24.9
54,543 customers
Customer-hours out
1.4M
Peak customers out
28,202
Outages ≥1,000 out
44
4 of 10,000+ · 625 total
Longest outage
21d 3h
began October 25, 2019
Rank in state
12th/64
159th of 2,945 US

Compared with LA, the US and 2018

Tangipahoa Parish, LA average hours without power per customer compared with state and national averages, 2019Tangipahoa Parish 24.9 hours, Louisiana average 10.2 hours, US average 4.7 hours, Tangipahoa Parish, 2018 11.0 hoursTangipahoa ParishTangipahoa Parish24.9hLouisiana averageLouisiana average10.2hUS averageUS average4.7hTangipahoa Parish, 2018Tangipahoa Parish, 2…11.0h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

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Tangipahoa Parish, LA customer-hours without power by month, 2019Jan 21K, Feb 7,253, Mar 11K, Apr 76K, May 135K, Jun 134K, Jul 213K, Aug 47K, Sep 38K, Oct 600K, Nov 60K, Dec 18K0200k400k600k21KJan7,253Feb11KMar76KApr135KMay134KJun213KJul47KAug38KSep600KOct60KNov18KDec
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Customer-hours; October was the worst month.

Tangipahoa Parish year over year

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Tangipahoa Parish, LA: average hours without power per customer by year2015: 10.9h; 2016: 13.1h; 2017: 29.5h; 2018: 11.0h, coverage 89%; 2019: 24.9h, coverage 89%; 2020: 18.6h, coverage 90%; 2021: 323.1h, coverage 90%; 2022: 12.3h, coverage 91%; 2023: 11.7h; 2024: 29.1h; 2025: 11.2h01002003004000%50%100%10.9h201513.1h201629.5h201711.0h201824.9h201918.6h2020323.1h202112.3h202211.7h202329.1h202411.2h2025
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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 Tangipahoa Parish, 2019

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 25, 2019 08:30November 15, 2019 11:3021d 3h28,202607K
2January 30, 2019 00:45January 30, 2019 07:306h 45m15,73013K
3May 11, 2019 06:00May 13, 2019 04:151d 22h15,23258K
4July 10, 2019 17:00July 12, 2019 04:451d 11h13,519148K
5May 4, 2019 10:15May 8, 2019 22:004d 11h9,28046K
6June 28, 2019 16:15July 1, 2019 04:302d 12h8,91344K
7September 5, 2019 13:00September 5, 2019 20:457h 45m7,00612K
8April 13, 2019 14:45April 16, 2019 02:002d 11h6,25232K
9April 18, 2019 17:00April 20, 2019 07:451d 14h6,22615K
10October 10, 2019 21:00October 12, 2019 11:001d 14h6,20620K

Outage episodes by size in 2019: 118 reached 100+ customers, 44 reached 1,000+ customers, 4 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 Tangipahoa Parish reported on EIA Form 861 for 2019, 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 LLC20184.6 hrs1.843.5 hrs1.63
Dixie Electric Membership Corp - (LA)20184.9 hrs3.203.2 hrs2.80
Washington-St Tammany E C, Inc20186.0 hrs3.746.0 hrs3.74

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 89% of Louisiana's customers in 2019; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 54,543 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. Tangipahoa Parish has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Tangipahoa Parish, LA annual power outage report, 2019, 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/2019/louisiana/tangipahoa-parish

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON