Power Out Map
– 0% of Grenada out 0 customers out in Mississippi

Power outage history

Grenada County Mississippi

15hours

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

30th most of 74 in Mississippi 2.2× the national median

Worst outage on record Apr 13, 2020 86% of customers out · 90% back in 3.8 days
Hours without power, average customer per year 15h / yr State average 9.8 h · national median 6.6 h
Major outages a year 4.8 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 5.0days Apr 12, 2020, over 1% of customers out
Outage hours on storm days 74% Share falling on days with a NOAA storm report here
Worst year 2020 2.1 days without power, average customer
Electricity customers 11,017 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 Grenada'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 2.1 days for the average customer. Hatched years have a thin record and are left out of the averages.

Grenada, hours without power per customer

GrenadaUS median countyMississippi average
0 20 40 60 16 ’15 3.9 ’16 7.3 ’17 7.0 ’18 5.2 ’19 50 ’20 4.7 ’21 7.6 ’22 7.8 ’23 8.7 ’24 26 ’25 MS 9.8 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
Apr 12, 2020 Thunderstorms 9,477 86% 5.0 d 3.8 d 454k
Feb 25, 2015 Winter storm 5,232 47% 2.2 d 30 h 131k
Mar 15, 2025 Tornadoes 2,041 19% 3.7 d 2.3 d 103k
May 25, 2025 Thunderstorms 2,222 20% 2.9 d 40 h 76k
Apr 3, 2018 Thunderstorms 2,039 19% 23 h 19 h 22k
Jun 5, 2020 Thunderstorms 1,296 12% 28 h 28 h 21k
Jan 1, 2017 No storm report 2,098 19% 14 h 14 h 20k
Jan 11, 2020 Thunderstorms 1,303 12% 26 h 48 min 18k
Aug 31, 2017 Hurricane Harvey 2,111 19% 22 h 16 h 17k
Jul 13, 2022 Thunderstorms 1,000 9% 32 h 31 h 14k
Mar 25, 2024 No storm report 1,300 12% 26 h 17 h 13k
Apr 5, 2025 Tornadoes 999 9% 15 h 8.5 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 +10h 90% by +24h

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

  • Thunderstorms 61%
  • No storm on record 26%
  • Tornadoes 11%
  • Tropical storm 1.2%
  • Flooding 0.7%

Who keeps the lights on

Utilities serving Grenada

As each utility reports to the Energy Information Administration for its whole Mississippi 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 Mississippi LLC Investor Owned 640 410 2.61 13.9 384k
Delta Electric Power Assn Cooperative 1,941 578 5.81 12.7 21k

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 Mississippi

Where it is darkest

Hours / yr64+

All Mississippi 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 11,017 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 →