Power Out Map
– 0% of Grant out 0 customers out in Louisiana

Power outage history

Grant Parish Louisiana

35hours

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

24th most of 63 in Louisiana 5.4× the national median

Worst outage on record Hurricane Laura · Aug 29, 2020 73% of customers out · 90% back in 10.1 days
Hours without power, average customer per year 35h / yr State average 27 h · national median 6.6 h
Major outages a year 2.9 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 18hours Median across major outages, from the peak
Longest single outage 14.3days Hurricane Laura, over 1% of customers out
Outage hours on storm days 86% Share falling on days with a NOAA storm report here
Worst year 2020 7.5 days without power, average customer
Electricity customers 14,064 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 Grant'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

2020 was the worst well-recorded year, at 7.5 days for the average customer. Hatched years have a thin record and are left out of the averages.

Grant, hours without power per customer

GrantUS median countyLouisiana average
0 20 40 60 80 6.6 ’15 13 ’16 13 ’17 11 ’18 19 ’19 180 ’20 20 ’21 11 ’22 15 ’23 14 ’24 10.0 ’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 27, 2020 Hurricane Laura 10,278 73% 14.3 d 10.1 d 2.0M
Oct 9, 2020 Hurricane Delta 8,254 59% 4.2 d 2.9 d 364k
Feb 17, 2021 Winter storm 3,259 23% 4.4 d 3.4 d 155k
Apr 13, 2019 Thunderstorms 3,602 26% 44 h 24 h 65k
Jun 16, 2023 Thunderstorms 2,606 19% 3.6 d 2.6 d 64k
Aug 19, 2024 Heat 3,942 28% 37 h 16 h 50k
Jun 10, 2023 Thunderstorms 2,955 21% 3.2 d 36 h 49k
May 28, 2017 No storm report 1,920 14% 3.6 d 44 h 49k
May 27, 2016 No storm report 1,482 11% 2.8 d 2.6 d 45k
Nov 1, 2018 Tornadoes 4,429 31% 38 h 24 h 37k
Jun 24, 2019 No storm report 1,559 11% 2.3 d 41 h 32k
May 26, 2025 Tornadoes 2,637 19% 33 h 29 h 32k

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 +42h

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 Grant from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

  • Tropical storm 67%
  • No storm on record 14%
  • Thunderstorms 8.0%
  • Winter storm 5.1%
  • Heat 2.7%
  • Tornadoes 2.1%
  • Flooding 1.0%

Who keeps the lights on

Utilities serving Grant

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
Cleco Power LLC Investor Owned 212 146 2.26 14.3 253k
Southwestern Electric Power Co Investor Owned 451 332 3.02 13.8 207k
Concordia Electric Coop, Inc Cooperative – – – 13.2 12k

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 14,064 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 →