Jefferson Parish, Louisiana Power Outages, 2015 to 2023

Jefferson Parish, Louisiana had 53 major outages from 2015 to 2023

Higher outage time among US counties

Residents here averaged 7.43 times the US outage time per person and 1.46 times the Louisiana rate. It ranks 15 of 61 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

5.9major outages per year

9 of 9years with a major outage

1,036 hrslongest major outage

Aug, Octhardest months

August and October made up 78% of this parish's outage time. The largest outage on record began Aug 30, 2021, reached 204,888 customers, and left at least 200 customers out for 195.2 hours.

Outage time per resident, rated Louisiana parishes

MostLeast

Outage impact by year

Customer-hours without power. 1,000 customers out for 2 hours is 2,000 customer-hours.

20M

40M

60M

80M

2015'152016'162017'172018'182019'192020'202021'212022'222023'23

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	939,157	279	3
2016	461,281	266	2
2017	813,004	261	6
2018	492,956	251	1
2019	1,758,597	295	10
2020	14,956,531	395	14
2021	48,545,970	297	7
2022	1,203,838	397	7
2023	661,108	301	3

When outages hit

Share of this parish's customer-hours by month.

20%

40%

60%

80%

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start date	Hours	Peak customers	Customer-hours
Aug 30, 2021	195.2	204,888	35,132,428
Sep 7, 2021	1035.8	131,523	7,807,540
Oct 28, 2020	28.8	180,496	4,561,707
Oct 31, 2020	66.5	112,753	4,539,410
Aug 29, 2021	18.2	201,639	3,639,687

Hours measure how long at least 200 customers in the parish were out. Most customers get power back sooner.

Size your backup battery

Start with what you would keep running. Wattages are typical averages, so check your own appliances.

Phones, Wi-Fi, lights, about 60 WRefrigerator, about 60 WChest freezer, about 40 WGas furnace fan, about 160 W

Hours to cover: 24

1,700 Whof battery capacity, allowing for about 15% conversion loss

If anyone relies on medical equipment, plan that with their provider. Run portable fuel generators outdoors only, at least 20 feet from doors, windows and vents. See the outage checklist.

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How to read this

A major outage lasted at least 8 hours and reached customers equal to at least 1% of parish residents.
Records cover outages of at least 200 customers in a parish. They do not show what happened on your street.
Utilities that do not report can make a parish look better than it is. Data ends in 2023. Read the full method.