massoutage

County annual report · FIPS 22051

2017 Jefferson Parish, LA Power Outage Report

In 2017, customers in Jefferson Parish, LA went without power for an average of 4.5 hours, a total of 1.0M customer-hours (Louisiana average 7.2 hours). That ranks 46th worst of 64 Louisiana counties and 1040th of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
4.5
230,746 customers
Customer-hours out
1.0M
Peak customers out
19,874
Outages ≥1,000 out
57
4 of 10,000+ · 624 total
Longest outage
19d 18h
began September 30, 2017
Rank in state
46th/64
1040th of 2,786 US

Compared with LA, the US and 2016

Jefferson Parish, LA average hours without power per customer compared with state and national averages, 2017Jefferson Parish 4.5 hours, Louisiana average 7.2 hours, US average 7.4 hours, Jefferson Parish, 2016 2.9 hoursJefferson ParishJefferson Parish4.5hLouisiana averageLouisiana average7.2hUS averageUS average7.4hJefferson Parish, 2016Jefferson Parish, 20…2.9h
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Average hours without power per customer in 2017; last bar is this county in 2016.

Month by month

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Jefferson Parish, LA customer-hours without power by month, 2017Jan 94K, Feb 95K, Mar 47K, Apr 89K, May 216K, Jun 197K, Jul 97K, Aug 58K, Sep 25K, Oct 35K, Nov 11K, Dec 63K0100k200k300k94KJan95KFeb47KMar89KApr216KMay197KJun97KJul58KAug25KSep35KOct11KNov63KDec
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Customer-hours; May was the worst month.

Jefferson Parish year over year

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Jefferson Parish, LA: average hours without power per customer by year2015: 5.4h; 2016: 2.9h; 2017: 4.5h; 2018: 3.0h, coverage 89%; 2019: 8.7h, coverage 89%; 2020: 67.4h, coverage 90%; 2021: 211.8h, coverage 90%; 2022: 6.4h, coverage 91%; 2023: 3.9h; 2024: 13.4h; 2025: 4.7h01002003000%50%100%5.4h20152.9h20164.5h20173.0h20188.7h201967.4h2020211.8h20216.4h20223.9h202313.4h20244.7h2025
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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 Jefferson Parish, 2017

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1February 10, 2017 11:30February 11, 2017 01:4514h 15m19,87414K
2February 7, 2017 05:30February 8, 2017 07:451d 2h18,06938K
3December 9, 2017 10:45December 10, 2017 05:4519h16,01843K
4June 8, 2017 01:45June 9, 2017 08:151d 6h10,48589K
5January 1, 2017 14:30January 3, 2017 09:301d 19h9,79432K
6April 30, 2017 06:30May 16, 2017 19:3016d 13h8,567240K
7July 8, 2017 13:30July 13, 2017 03:304d 14h8,00838K
8July 20, 2017 11:30July 21, 2017 08:0020h 30m7,15516K
9June 20, 2017 12:45June 24, 2017 03:453d 15h6,82456K
10June 11, 2017 21:15June 12, 2017 10:3013h 15m5,89410K

Outage episodes by size in 2017: 180 reached 100+ customers, 57 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 Jefferson Parish reported on EIA Form 861 for 2017, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Entergy Louisiana LLC20176.5 hrs2.102.9 hrs1.48

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 2017; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 230,746 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. Jefferson Parish has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Jefferson Parish, LA annual power outage report, 2017, 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/2017/louisiana/jefferson-parish

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON