Hurricane Katrina tore the Mississippi Gulf Coast apart in 2005 and left parts of Gulfport and Biloxi without power for weeks. Nearly two decades later, in March 2023, an EF-4 tornado erased much of Rolling Fork in the Delta in a matter of minutes. Those are the two faces of a Mississippi outage — a coastal hurricane and an inland tornado — and the state has no regional grid operator standing by with imported power to shorten either one. The lights here run through Mississippi Power along the coast, Entergy Mississippi through the middle of the state, and co-ops in between, all of which rebuild line by line after a major storm. If you’re comparing Mississippi solar quotes, it’s worth settling the backup question first.
The outages Mississippi actually gets
The record here is not theoretical, and it is not only a coastal problem.
Hurricane Katrina, 2005. Katrina devastated the Gulf Coast from Waveland and Bay St Louis through Gulfport and Biloxi, and the hardest-hit stretches of coast were without power for weeks. That grid was not repaired so much as rebuilt, pole by pole, in the order crews could reach it.
Hurricane Zeta, 2020, and the remnants of Hurricane Ida, 2021. Zeta crossed the coast and kept going, taking lines down well away from the water. Ida’s remnants pushed north out of Louisiana and darkened Mississippi homes after the storm had stopped being a hurricane.
Inland is not the safe half of the state. Central Mississippi gets strong tornadoes, and the northern counties get ice storms that load lines until poles come down. Hurricane damage runs far inland here too, so Hattiesburg and Jackson are exposed as well as the coast.
Why restoration takes as long as it does. The lights come back through Entergy Mississippi, Mississippi Power, Coast Electric and the other co-operatives, each rebuilding its own lines from transmission and substations outward to the branch lines and, last, the service drop to one house. A home at the end of a co-op lateral is restored last by design.
Two kinds of storm, one weakness in your solar
Rooftop panels trim your bill, but they go dark the instant the grid does. A grid-tied system disconnects automatically in an outage — an anti-islanding feature that keeps power off the lines while crews work. Whether the threat is a hurricane coming ashore near Gulfport or a tornado tracking across central Mississippi toward Jackson and Hattiesburg, an unbatteried array produces nothing when you need it most. A battery is what turns solar into real storm insurance.
Right-sizing backup for a Mississippi home
You don’t need to power the whole house — you need to protect a handful of things: a fridge (about 150W), Wi-Fi (near 10W), phone charging (about 20W), and a few LED lights (roughly 50W for ten). That core is well within a mid-size battery’s reach.
For it, the sensible starting point is the HomePower 3000. At roughly 3,072Wh and 3,600W it keeps the essentials on for one to two days, runs near 30 decibels, and is safe indoors because it vents nothing. Its bundle includes solar panels, so it recharges during daylight through a multi-day outage.
▶ Shop the HomePower 3000 — panels included use code DEAL5
If central air is on your must-stay-on list — a fair ask through a Gulf Coast summer outage in Gulfport or Biloxi — step up to the Solar Generator 5000 Plus. With 5,040Wh, 7,200W, both 120V and 240V, and expansion to 60kWh, it can carry cooling plus several rooms at once.
▶ Shop the Solar Generator 5000 Plus — 7,200W, 120V/240V
What has to stay on in a Gulf Coast outage, and for how long
Size against energy per day, not the wattage printed on the label. In this climate the load that decides everything is cooling, not heating.
| Load | Typical draw | Energy per day |
|---|---|---|
| Fridge/freezer | ~150W running (cycling) | 1,000 to 1,500Wh |
| Chest freezer | cycling | 600 to 900Wh |
| Box or pedestal fan | 30 to 60W | 400 to 700Wh (12 hrs) |
| Wi-Fi router | ~10W | ~240Wh |
| LED lights (ten bulbs) | ~50W | ~300Wh (6 hrs) |
| Phones and a laptop | 20 to 60W | 150 to 300Wh |
| CPAP (humidifier off) | 30 to 60W | 300 to 500Wh per night |
| Small window air conditioner, one room | 400 to 600W | 4,000 to 8,000Wh |
| Central air conditioning | 3,000 to 4,000W plus a large surge | Needs 240V and a 7,200W unit |
Fridge, freezer, a fan, lights, Wi-Fi, phones and a CPAP come to roughly 3,000 to 4,000Wh a day. Add a window air conditioner in one room and the day jumps to 7,000 to 12,000Wh. Cooling is several times everything else combined.
HomePower 3000. 3,072Wh, 3,600W, LiFePO4, panels included, 120V only and not expandable: about a day of essentials per charge. A fan runs for days on it. A window air conditioner is hours, not a night. A bright summer day puts 1,500 to 2,000Wh back through the panels, which is what turns one day of battery into a multi-day plan; under the grey overcast behind a storm, expect a few hundred watt-hours.
HomePower 3600 Plus. 3,584Wh, 3,600W, expandable to 21kWh, transfer-switch ready, 120V. Essentials for a day or so on the base unit, several days expanded, and a window unit for an evening.
Solar Generator 5000 Plus. 5,040Wh, 7,200W, 120V and 240V, expandable to 60kWh. It runs a window unit for most of a hot day, and only it has the output and voltage for central air conditioning, or for a 240V well pump at about 1,000W running and two to three times that to start. Plenty of Mississippi homes outside town are on a well, and that one fact decides the unit.
| Unit | Capacity / output | Best for in Mississippi | Buy |
|---|---|---|---|
| HomePower 3000 (our pick) | 3,072Wh · 3,600W · panels included | Fridge, freezer, fans, Wi-Fi and a CPAP for about a day per charge | Check price → |
| HomePower 3600 Plus | 3,584Wh · 3,600W · to 21kWh | A long coastal rebuild, circuits on a transfer switch | Check price → |
| Solar Generator 5000 Plus | 5,040Wh · 7,200W · 120V/240V · to 60kWh | Central air conditioning and a 240V well pump | Check price → |
▶ Shop the HomePower 3600 Plus, expandable to 21kWh
Our sizing guide works the same arithmetic load by load, and best solar generators for home backup sets the three against the wider market.
Heat after the storm is the real danger
An August or September outage here is a health problem, not an inconvenience. The wind stops, the sky clears, and heat builds inside a shuttered house with nothing moving the air. That is genuinely dangerous for older residents, small children, and anyone on a medical device.
That decides where the machine lives. A battery station runs safely indoors with the house still shuttered, because it produces zero exhaust and sits near 30 decibels. A gas generator never can. Carbon monoxide from generators run in garages, on porches and under open windows kills people after most major Gulf hurricanes, precisely because the heat pushes the machine closer to where the family sleeps.
It also decides what you try to cool. Do not attempt the house. Pick the smallest room you can sleep in, ideally with one window and a door that shuts, put the window unit in that window and let the rest of the house be warm. In one closed room the compressor cycles far less, so the real draw sits nearer the bottom of the 400 to 600W band. If a window unit is beyond your battery, a fan in that closed room runs for days on any of these units.
A CPAP is 30 to 60W and 300 to 500Wh a night, which all three units cover for several nights. Our CPAP guide has the detail.
Buy before the cone points at you
Every season runs the same script. A forecast track appears with Mississippi inside it, and within about a day the shelves clear: generators, batteries, fuel cans, bottled water. Stations queue and then run dry. Shipping windows close as carriers stop delivering into the forecast area, so a unit ordered on the Tuesday before a Thursday landfall arrives too late.
Work through this before the season.
- Charge it to full and top it up monthly, from May onward.
- Keep it indoors, in an interior closet or utility room, never a hot garage or a screened porch.
- Decide which outlets and which loads. Fridge, freezer, router, a lamp, the CPAP, one fan. Tape the list to the unit so nobody improvises in the dark.
- Buy heavy duty cords rated for the load. A short 12-gauge cord for the fridge run. Thin cords lose voltage and get warm.
- Test your own fridge on it once, for an hour on a normal day.
- Stage the panel spot. Driveway or back lawn, cables beside the panels, ready the moment the wind drops.
- Keep a battery-powered carbon monoxide alarm, because somebody on your street will run a gas generator too close to a wall, and write the medical device numbers on paper for the fridge door.
▶ Get the HomePower 3000 charged before the next named storm use code DEAL5
Have it charged before the season turns
The worst time to shop for backup is with a hurricane already in the Gulf or a tornado watch on the radio and every store sold out. Set it up ahead of time and it’s ready when the next system spins up. Check the current deals before you need one.
Keep reading: Mississippi solar incentives & costs · Do Alabama homes need battery backup? · How to keep your fridge & lights on in a Louisiana outage · Best battery backup for Florida hurricanes · How to size a solar generator for home backup · Best solar generators for home backup · Solar generator backup for a CPAP