massoutage

County annual report · FIPS 22105

2020 Tangipahoa Parish, LA Power Outage Report

In 2020, customers in Tangipahoa Parish, LA went without power for an average of 18.6 hours, a total of 1.0M customer-hours (Louisiana average 72.6 hours). That ranks 51st worst of 64 Louisiana counties and 465th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
18.6
54,543 customers
Customer-hours out
1.0M
Peak customers out
21,260
Outages ≥1,000 out
41
3 of 10,000+ · 614 total
Longest outage
18d 16h
began April 28, 2020
Rank in state
51st/64
465th of 3,019 US

Compared with LA, the US and 2019

Tangipahoa Parish, LA average hours without power per customer compared with state and national averages, 2020Tangipahoa Parish 18.6 hours, Louisiana average 72.6 hours, US average 8.7 hours, Tangipahoa Parish, 2019 24.9 hoursTangipahoa ParishTangipahoa Parish18.6hLouisiana averageLouisiana average72.6hUS averageUS average8.7hTangipahoa Parish, 2019Tangipahoa Parish, 2…24.9h
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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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Tangipahoa Parish, LA customer-hours without power by month, 2020Jan 66K, Feb 173K, Mar 44K, Apr 179K, May 49K, Jun 48K, Jul 32K, Aug 59K, Sep 26K, Oct 281K, Nov 35K, Dec 21K0100k200k300k66KJan173KFeb44KMar179KApr49KMay48KJun32KJul59KAug26KSep281KOct35KNov21KDec
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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, 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
1November 19, 2020 20:45November 26, 2020 04:006d 7h21,26013K
2April 28, 2020 14:30May 17, 2020 06:3018d 16h15,589165K
3October 9, 2020 07:15October 15, 2020 21:006d 13h15,584225K
4January 6, 2020 02:00January 9, 2020 18:003d 16h8,07115K
5August 16, 2020 22:30August 19, 2020 03:452d 5h6,22727K
6December 8, 2020 13:45December 8, 2020 17:003h 15m6,1971,553
7February 3, 2020 14:15February 5, 2020 03:451d 13h5,517126K
8February 29, 2020 22:45March 1, 2020 05:306h 45m4,33313K
9October 28, 2020 19:00November 2, 2020 15:004d 20h4,27548K
10September 26, 2020 11:00September 27, 2020 05:0018h4,2297,967

Outage episodes by size in 2020: 133 reached 100+ customers, 41 reached 1,000+ customers, 3 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 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
Dixie Electric Membership Corp - (LA)202018.9 hrs4.903.2 hrs2.77
Washington-St Tammany E C, Inc202011.7 hrs4.134.9 hrs2.90

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 ÷ 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, 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/tangipahoa-parish

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON