Power Out Map
– 0% of St. Helena out 0 customers out in Louisiana

Power outage history

St. Helena Parish Louisiana

83hours

without power for the average customer in a typical year, 2018–2025

2nd most of 63 in Louisiana 13× the national median

Worst outage on record Hurricane Ida · Aug 30, 2021 100% of customers out · 90% back in 17.1 days
Hours without power, average customer per year 83h / yr State average 27 h · national median 6.6 h
Major outages a year 19.3 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 3hours Median across major outages, from the peak
Longest single outage 19.3days Hurricane Ida, over 1% of customers out
Outage hours on storm days 73% Share falling on days with a NOAA storm report here
Worst year 2021 19.9 days without power, average customer
Electricity customers 4,162 ORNL customer model · 8 well-covered years

Every day since 2015

Eleven years, one night at a time

Each cell is a day. The brighter it is, the larger the share of St. Helena's customers who were without power at that day's worst moment.

20152016201720182019202020212022202320242025
0%100% of customers out

Year by year

Hours in the dark, per customer

2021 was the worst well-recorded year, at 19.9 days for the average customer. Hatched years have a thin record and are left out of the averages.

St. Helena, hours without power per customer

St. HelenaUS median countyLouisiana average
0 50 100 150 6.7 ’15 20 ’16 36 ’17 20 ’18 19 ’19 51 ’20 476 ’21 15 ’22 18 ’23 41 ’24 25 ’25 LA 27 US 6.6

The record

The biggest outages since 2015

Ranked by customer-hours lost: customers out multiplied by how long they stayed out. Times are local.

Began Storm Peak out Share Lasted 90% restored Customer-hours
Aug 29, 2021 Hurricane Ida 4,162 100% 19.3 d 17.1 d 1.7M
Feb 15, 2021 No storm report 4,162 100% 4.7 d 4.0 d 234k
Oct 9, 2020 Hurricane Delta 4,162 100% 3.3 d 46 h 125k
Dec 8, 2017 Winter storm 3,720 89% 3.4 d 2.1 d 103k
Sep 11, 2024 Hurricane Francine 2,024 49% 3.2 d 38 h 35k
Nov 1, 2018 Thunderstorms 3,194 77% 29 h 25 h 31k
Apr 10, 2024 No storm report 2,655 64% 2.0 d 29 h 27k
May 18, 2021 No storm report 2,981 72% 21 h 13 h 24k
Aug 12, 2016 Flooding 1,105 27% 2.2 d 24 h 24k
Jun 4, 2024 Tornadoes 2,094 50% 26 h 12 h 23k
Mar 15, 2024 Thunderstorms 2,469 59% 21 h 12 h 15k
Jun 25, 2020 No storm report 1,681 40% 23 h 7.5 h 13k

After the peak

How fast the lights come back

Each line is one major outage, from its peak. The amber line is the typical path.

0% 25% 50% 75% 100% peak+24h+48h+72h+96h half back by +8h 90% by +26h

When it happens

The outage clock

Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.

00061218 Jan inside

What was happening

Weather behind the outages

Each outage is matched to NOAA storm reports for St. Helena from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

  • Tropical storm 69%
  • No storm on record 27%
  • Thunderstorms 2.3%
  • Tornadoes 1.2%

Who keeps the lights on

Utilities serving St. Helena

As each utility reports to the Energy Information Administration for its whole Louisiana territory, not this county alone. Outage minutes include major storm days.

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Entergy Louisiana LLC Investor Owned 253 218 1.83 11.9 962k
Dixie Electric Membership Corp Cooperative 321 275 4.62 13.5 111k

EIA Form 861, latest year each utility reported. Outage minutes are SAIDI, the yearly minutes the average customer goes without power; outages a year are SAIFI.

Next door

Neighbouring counties

Across Louisiana

Where it is darkest

Hours / yr64+

All Louisiana counties →

About these numbers

Notes

Outages come from the EAGLE-I record of utility outage maps collected every 15 minutes by Oak Ridge National Laboratory. Hours without power are customer-hours divided by the county's 4,162 electricity customers. Averages use well-covered years from 2018. Outages shorter than 15 minutes, and utilities that publish no outage map, are not in the record, so these figures understate the total. How every number is made →