massoutage

County annual report · FIPS 22059

2021 LaSalle Parish, LA Power Outage Report

In 2021, customers in LaSalle Parish, LA went without power for an average of 21.3 hours, a total of 138K customer-hours (Louisiana average 99.7 hours). That ranks 38th worst of 64 Louisiana counties and 406th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
21.3
6,475 customers
Customer-hours out
138K
Peak customers out
5,093
Outages ≥1,000 out
2
0 of 10,000+ · 363 total
Longest outage
5d 23h
began January 7, 2021
Rank in state
38th/64
406th of 2,974 US

Compared with LA, the US and 2020

LaSalle Parish, LA average hours without power per customer compared with state and national averages, 2021LaSalle Parish 21.3 hours, Louisiana average 99.7 hours, US average 8.9 hours, LaSalle Parish, 2020 115.1 hoursLaSalle ParishLaSalle Parish21.3hLouisiana averageLouisiana average99.7hUS averageUS average8.9hLaSalle Parish, 2020LaSalle Parish, 2020115.1h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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LaSalle Parish, LA customer-hours without power by month, 2021Jan 9,482, Feb 113K, Mar 370, Apr 1,278, May 1,984, Jun 2,515, Jul 2,452, Aug 1,773, Sep 1,761, Oct 2,658, Nov 471, Dec 526050k100k150k9,482Jan113KFeb370Mar1,278Apr1,984May2,515Jun2,452Jul1,773Aug1,761Sep2,658Oct471Nov526Dec
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Customer-hours; February was the worst month.

LaSalle Parish year over year

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LaSalle Parish, LA: average hours without power per customer by year2015: 2.8h; 2016: 12.5h; 2017: 12.1h; 2018: 19.9h, coverage 89%; 2019: 32.8h, coverage 89%; 2020: 115.1h, coverage 90%; 2021: 21.3h, coverage 90%; 2022: 3.8h, coverage 91%; 2023: 5.0h; 2024: 5.0h; 2025: 6.0h0501001500%50%100%2.8h201512.5h201612.1h201719.9h201832.8h2019115.1h202021.3h20213.8h20225.0h20235.0h20246.0h2025
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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 LaSalle Parish, 2021

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
1February 17, 2021 18:00February 23, 2021 02:305d 8h5,093111K
2October 6, 2021 20:00October 6, 2021 21:001h1,7531,314
3May 18, 2021 13:00May 18, 2021 13:1515m980245
4August 12, 2021 01:00August 12, 2021 11:0010h706195
5October 16, 2021 07:15October 16, 2021 10:453h 30m694729
6April 24, 2021 06:15April 24, 2021 20:1514h450415
7January 7, 2021 16:45January 13, 2021 16:005d 23h4399,329
8February 24, 2021 00:30February 24, 2021 13:3013h3721,339
9August 1, 2021 03:00August 1, 2021 06:003h299585
10October 7, 2021 02:00October 7, 2021 02:3030m264132

Outage episodes by size in 2021: 21 reached 100+ customers, 2 reached 1,000+ customers, 0 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 LaSalle Parish reported on EIA Form 861 for 2021, 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 LLC2021111.5 hrs3.164.1 hrs1.62
Cleco Power LLC-----
Concordia Electric Coop, Inc-----

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 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 6,475 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. LaSalle Parish has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), LaSalle Parish, LA annual power outage report, 2021, 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/2021/louisiana/lasalle-parish

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON