Infrastructure · Power outage

The First Hour of a Power Outage

What to do in the first hour after the power goes out, before you know whether it will last one hour or two days.

An unopened full freezer keeps food safe for about two days. The refrigerator next to it gives you about four hours. The most damaging thing people do in the first hour of a power outage is open both of them to look.

The first hour is not the hour to keep checking the freezer. It is the hour to keep the cold in, save the battery you have, check on anyone whose body depends on electricity, and slow the house down before everybody starts solving the wrong problem.

A power outage feels like one event. It is usually several small failures arriving together: the lights are out, the refrigerator has stopped holding temperature, the phone is now a limited tool, the furnace or air conditioner may be gone, the garage door may not open, the well pump may not run, and the person who was fine an hour ago may not be fine if their breathing, mobility, or medication depends on electricity.

The utility is not waiting for you to solve the outage. Crews may already know. They may not. The outage map may lag. The estimated restoration time may change three times. Report the outage if your utility asks customers to report it, then stop refreshing the map. The useful question is not when will this be over. The useful question is what will I wish I had done first if this lasts until tomorrow.

Start with the people, not the appliances. If anyone in the house depends on powered medical equipment or refrigerated medicine, this is not a wait-and-see item. Get eyes on them. Check battery status on devices. Find the backup plan, if there is one. If there is no backup plan and the device or medication is essential, call the medical-device supplier, the healthcare team, the local non-emergency line, or emergency services as appropriate.

Then save your phone. Put every phone in the house on low-power mode. Dim the screen. Turn off anything that is draining the battery. Send one plain text to the people who need to know: Power is out here. We're okay for now. I'll text again at 8. Texts cost less battery and attention than calls. One short message also keeps you from having the same worried conversation six times while the refrigerator warms up.

Now leave the refrigerator and freezer closed. If you need to know what's in the fridge, decide quickly and open it once. Do not stand there taking inventory. Do not keep checking whether the ice cream has softened. Closed doors are doing the work. The clock is not generous, but it is not instant: the refrigerator has about four hours if unopened, a full freezer about forty-eight hours, a half-full freezer about twenty-four. After four hours without power, perishable refrigerated foods need a real safety decision, not a taste test. Never taste food to decide whether it is safe.

This is one of the places where people lose the plot. Food feels urgent because it is expensive. In the first hour, you usually cannot save it by touching it. You save it by leaving it alone. If the outage is still going several hours later, you can decide whether to move some items to a cooler, get ice, cook something safely, or start throwing things away. The first hour is for preserving options.

If you are on a private well, ask a plain question: does your water depend on an electric pump? Many households do not think of water as part of a power outage until the pressure drops. If the power has just gone out and you still have water pressure, fill a few clean containers for drinking, handwashing, pets, and flushing. Do not run every tap in the house. Just give yourself a buffer.

If the outage is happening during heat or cold, the house itself is now your buffer. In summer, keep the cool air in: close curtains on the sunny side, keep doors closed, reduce unnecessary opening and closing. In winter, keep warm air in: close off rooms you do not need, use blankets and layers, and keep people together where it makes sense.

This is also where the most dangerous wrong answer appears: burning fuel inside the house. A generator, grill, camp stove, charcoal stove, or fuel-burning heater can turn a power outage into carbon monoxide poisoning. Carbon monoxide is not a smell you will notice in time. It is why the answer to can we just bring this inside for a little while has to be no.

The first hour also decides whether the house stays quiet enough to think. Turn off or unplug sensitive electronics and unnecessary appliances so they are less exposed when power returns. Leave one light switched on somewhere you will notice; when it comes back, you will know. Use flashlights if you have them. Candles make a second problem out of the first one.

After that, widen the circle. Not to everybody. To the right people. If you have an older neighbor, a medically fragile relative, someone who lives alone, or someone who will not ask for help until they are already in trouble, check now. A text is fine. A knock is better if they are nearby and conditions are safe. You are not taking responsibility for the whole block. You are making sure the person across the street is not sitting in the dark with a dead phone, a warm apartment, and no plan.

Outages shift in character over time. In the first hour, you are preserving options. By six hours in, most household decisions are still small ones — what to eat, whether to get ice, whether to relocate someone who depends on power. By the twenty-four-hour mark, food safety, medication, heat or cold, charging, water, school, and money all start to press at once. At forty-eight hours, you are no longer managing a nuisance. The question becomes whether your current place is still the right place to be.

There is no virtue in staying put if the house stops being safe. Leave before it becomes a rescue problem. That may mean going to a relative, a neighbor, a public warming or cooling center, a library, a hotel if you can afford it, or another place with power.

The small preparation that does the most work is not a generator. It is a light where your hand already goes in the dark. Put a headlamp or flashlight in the same drawer every time — bedside table, kitchen drawer, entry table, wherever your body reaches before your brain has caught up. Then put your utility outage number, two household numbers, and one neighbor or nearby relative on a paper card. Phones fail in boring ways. Paper does not.

The checklist below is the short version for the hallway, the kitchen, or the phone screen. The printable is the version to tape inside a cabinet. Read the essay once when you have time. Use the card when the lights are out.

When the refrigerator hums back on, let the cold recover before you open it. Check the clock. Text the person who was waiting to hear from you. Then put the flashlight back where your hand will reach next time.

Checked against guidance from the CDC, FoodSafety.gov, FDA, the U.S. Department of Energy, the National Weather Service, and the American Red Cross. Full source notes.