Entergy Mississippi LLC: power outages per year
In 2025 the average Entergy Mississippi LLC customer was without power for 10.7 hours, more than the Mississippi average of 8.4 h; about the same as 2024 (11.5 h). The utility served 464,256 customers in Mississippi and ranks #1 of 2 large Mississippi utilities by outage hours.
By year
| Year | Hours (with major events) | Hours (without) | Interruptions | Customers |
|---|---|---|---|---|
| 2025 | 10.7 | 6.8 | 2.6 | 464,256 |
| 2024 | 11.5 | 5.5 | 2.3 | 465,518 |
| 2023 | 20.0 | 4.9 | 2.1 | 466,211 |
| 2022 | 12.2 | 5.5 | 2.4 | 465,591 |
| 2021 | 22.9 | 4.7 | 2.4 | 464,740 |
| 2020 | 16.7 | 3.8 | 2.3 | 461,025 |
"With major events" includes storm days that utilities may exclude from their own reliability targets; it is what customers actually live through. The gap between the two columns shows how much of the year's outage time came from big storms.
Backup power for Entergy Mississippi LLC outages
An average outage here lasted about 4.1 hours in 2025. Size backup for the longest outage you want to ride through, not the average.
Other large utilities in Mississippi
FAQ
How many hours a year are Entergy Mississippi LLC customers without power?
10.7 hours per customer in 2025 including major event days (6.8 h without them), as Entergy Mississippi LLC reported to the U.S. EIA.
How long does a typical Entergy Mississippi LLC outage last?
About 4.1 hours on average in 2025 (total outage minutes divided by the number of interruptions). Storms make single events much longer.
Source: U.S. EIA Form 861, Reliability file, 2020–2025. Data snapshot . Utilities ranked nationwide →