massoutage

County annual report · FIPS 22007

2020 Assumption Parish, LA Power Outage Report

In 2020, customers in Assumption Parish, LA went without power for an average of 23.6 hours, a total of 159K customer-hours (Louisiana average 72.6 hours). That ranks 46th worst of 64 Louisiana counties and 366th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
23.6
6,738 customers
Customer-hours out
159K
Peak customers out
3,510
Outages ≥1,000 out
16
0 of 10,000+ · 284 total
Longest outage
4d 2h
began October 9, 2020
Rank in state
46th/64
366th of 3,019 US

Compared with LA, the US and 2019

Assumption Parish, LA average hours without power per customer compared with state and national averages, 2020Assumption Parish 23.6 hours, Louisiana average 72.6 hours, US average 8.7 hours, Assumption Parish, 2019 55.3 hoursAssumption ParishAssumption Parish23.6hLouisiana averageLouisiana average72.6hUS averageUS average8.7hAssumption Parish, 2019Assumption Parish, 2…55.3h
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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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Assumption Parish, LA customer-hours without power by month, 2020Jan 7,674, Feb 1,579, Mar 6,321, Apr 9,542, May 5,041, Jun 29K, Jul 4,703, Aug 9,261, Sep 1,262, Oct 48K, Nov 268, Dec 36K020k40k60k7,674Jan1,579Feb6,321Mar9,542Apr5,041May29KJun4,703Jul9,261Aug1,262Sep48KOct268Nov36KDec
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Customer-hours; October was the worst month.

Assumption Parish year over year

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Assumption Parish, LA: average hours without power per customer by year2015: 40.9h; 2016: 28.9h; 2017: 14.7h; 2018: 9.0h, coverage 89%; 2019: 55.3h, coverage 89%; 2020: 23.6h, coverage 90%; 2021: 247.5h, coverage 90%; 2022: 13.2h, coverage 91%; 2023: 11.8h; 2024: 71.8h; 2025: 9.9h01002003000%50%100%40.9h201528.9h201614.7h20179.0h201855.3h201923.6h2020247.5h202113.2h202211.8h202371.8h20249.9h2025
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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 Assumption 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
1June 24, 2020 18:00June 25, 2020 01:157h 15m3,51017K
2June 20, 2020 05:00June 20, 2020 10:155h 15m3,4319,804
3August 26, 2020 18:45August 26, 2020 22:153h 30m3,4172,812
4December 1, 2020 10:30December 1, 2020 23:3013h3,40335K
5August 27, 2020 04:00August 27, 2020 09:155h 15m3,2683,361
6April 15, 2020 11:45April 15, 2020 14:002h 15m3,0721,917
7October 9, 2020 19:00October 13, 2020 21:004d 2h2,47139K
8October 28, 2020 22:15October 29, 2020 23:151d 1h2,3314,896
9January 11, 2020 10:15January 12, 2020 02:1516h1,3781,184
10October 25, 2020 14:15October 25, 2020 15:0045m1,3661,025

Outage episodes by size in 2020: 35 reached 100+ customers, 16 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 Assumption 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
Cleco Power LLC-----
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 90% of Louisiana's customers in 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 6,738 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. Assumption Parish has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Assumption 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/assumption-parish

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