Backup Power for Louisiana Hurricanes: Planning for Weeks, Not Days

Ida made landfall at the end of August 2021 with winds near the top of the scale. In parts of the river parishes the power did not come back for over a month. verify

That is the number to plan around in this state. Not a night. Not a weekend. Weeks — in heat, in humidity, with fuel hard to find.

Why Louisiana is its own problem

Three things stack here that do not stack elsewhere.

The outages are long. The transmission infrastructure that feeds the New Orleans area crosses open water and marsh, and when it fails it fails badly. Ida took out every transmission line into the city at once. verify Restoration means rebuilding, not repairing.

It is hot and wet. A September outage in Louisiana is 90°F with humidity that makes it feel far worse. Heat is dangerous here in a way it is not in a New England ice storm, and the answer to heat on a battery is not air conditioning.

Fuel disappears. Gas stations need grid power to pump. After Ida, people queued for hours for fuel that was not there. verify A generator with no gas is a heavy box, which is the whole argument for a battery that refills from the sun.

Plan around recharging, not capacity

This is the part that separates Louisiana from a place with two-day outages.

A 2,000Wh battery sounds like a lot until you divide it by seven days. It is not a week of anything. What a week needs is a way to put energy back in — and the week after a hurricane is, reliably, sunny.

The setup that works: a 1,000–2,000Wh unit and at least 400W of folding solar panels. On a clear post-storm day that refills a mid-size unit, which means the fridge and the fans run indefinitely instead of running out on day two.

Treat those hours as per charge. With panels, the question becomes how much sun you get, not how big the battery is.

Heat: what a battery can and cannot do

Air conditioning is out. A window unit empties a 2,000Wh battery in a few hours. Central air draws thousands of watts continuously. Anyone selling you a battery for AC in a Louisiana August is selling you disappointment.

Fans are the answer, and they are a remarkably good one. A box fan draws under 100W and moves air across skin, which is what actually cools you. verify Two fans, one closed room with curtains drawn, and the fridge cycling — a 1,000Wh unit carries that overnight, and panels carry it through the day.

Dehumidification is the upgrade worth considering. A small dehumidifier draws a few hundred watts, which is heavy, but Louisiana humidity is half the discomfort. On a 2,000Wh unit with panels, running one for a few hours in the evening is within reach. We wrote up fans properly here.

What we'd buy, by situation

New Orleans metro, house on a normal line

A 1,000Wh unit plus 400W of panels. The EcoFlow DELTA 2 with two PV200s. Fridge, fans, phones, internet — and a way to keep it going when the restoration crew is three parishes away.

River parishes, Houma, anywhere Ida hit hardest

2,000Wh class with panels. The Bluetti AC200L. Longer outages here are the norm rather than the exception, and the extra capacity means a cloudy day does not empty you.

Rural, on a well, or with medical equipment

The DELTA Pro 3 with a transfer switch, and a serious look at a standby generator alongside it. A well pump needs 240V, and week-long outages with medical equipment need more margin than a portable unit gives.

What not to buy in Louisiana

A big battery with no panels. It runs out on day two and you spend the rest of the week wishing you had bought smaller and added solar.

A generator without a fuel plan. If your generator strategy assumes the gas station is open, it is not a strategy. Store fuel safely in advance, or accept that the generator is a first-two-days tool.

Anything sold as an AC solution. It is not, and you will find out on the worst night.

The free things, which matter most

Evacuate for the big one. No battery is a reason to stay for a Category 4. Backup power is for what comes after you return.

Freeze water now. Fill the freezer with jugs. Mass holds cold, and a full freezer buys days before you spend a watt-hour.

Fill the tank before the storm. Your car is a slow generator and a way out. Both need fuel that will not be available afterwards.

Ask Entergy about medical registration if anyone in the house depends on equipment. It is free and one form, and it changes where you sit in the restoration queue.