48 hours without power in a small apartment: the quiet plan
No generator, because a balcony is not 20 feet from a window. No gas oven for heat, because that is how people die in outages. What is left is quieter and cheaper: water counted in gallons, phones counted in charges, and a clock on the fridge door. The calculator below does the arithmetic for your household; the plan under it tells you what to do at hour 0, 4, 24 and 48.
No affiliate links on this page. It is a free tool and a field note. The product review in this chapter is a separate page and says so at the top.
What your apartment needs for the next two days
Three numbers matter in an apartment outage: the water you can drink, the phone charges you can buy back, and how long the cold in the fridge lasts. The first two scale with your household. The third does not; it is the same clock for everyone, and it starts the moment the compressor stops.
Hour 0, hour 4, hour 24, hour 48
Hour 0. Unplug the television, the computer and anything with a motor; Ready.gov warns that power can return with a surge. Put a thermometer in the fridge if you own one and do not open the door again. Set the phones to low-power mode and turn off what you are not using. Fill the bathtub and every clean pot with water while the taps still run: in many mid-rise and high-rise buildings the pump that lifts water to the upper floors is electric, and whether yours has a backup is a question for the building manager, not a guess. Check the flashlights, one per person.
Hour 4. This is the refrigerator's limit. Move what you will eat next into a cooler with ice from the freezer, and leave the rest shut. Cook whatever must be eaten first on a camp stove outside, never on the kitchen floor: a camp stove or a charcoal grill indoors makes the same carbon monoxide a generator does. If it is winter, close off one room and put everyone in it; if it is a heat wave, find the nearest community cooling location now, while you can still look it up.
Hour 24. Count the charges left across all the phones and decide who keeps theirs on. One phone on, the others off, is a plan; four phones at 10% is a wish. If the building's water has stopped, you are living on the bathtub and the bottles, at a gallon per person per day. This is the hour to walk the stairs and check on the neighbour who does not go out much.
Hour 48. The full freezer's clock runs out. Anything that reached 40 °F or higher goes, and Ready.gov's rule is to decide by the thermometer, not by smell. If the power is still off, you are no longer in a short outage, and the apartment plan hands over to the one in the day-after page: water first, then power, then write down what ran out first.
The times are Ready.gov's food numbers plus our sequencing. The sequence is ours, not data.
Why 48 hours, and why some of you should plan for more
The average U.S. electricity customer lost about 11 hours of power in all of 2024, according to the Energy Information Administration's December 2025 note on its Electric Power Annual. That is nearly twice the average of the decade before, and 80 percent of it came from three hurricanes: Beryl, Helene and Milton. Take the storms out and the routine number is about two hours a year.
Averages hide the tail. Customers in South Carolina averaged nearly 53 hours without power in 2024, one state, one year, mostly one storm. So the honest answer to "how long should I plan for" has two halves: 48 hours covers the freezer and most non-storm outages anywhere in the country; if a hurricane track has ever crossed your county, pick 72 in the calculator and add a day of water.
Source: U.S. Energy Information Administration, Today in Energy, "Hurricanes in 2024 led to the most hours without power in the United States in 10 years" (1 Dec 2025, read 10 Sept 2026). The figures are SAIDI, the average total minutes of sustained interruption per customer per year, converted to hours by EIA.
What a full home outage strategy looks like when the home is small
We have not filmed our own outage. The most complete walk-through we found from someone who plans for a city home rather than a homestead is by TheUrbanPrepper: lighting, power, food, water, in that order, with the gear laid out on the table. It is their work, shown here with their embed enabled; the credit and the link go to them.
What this plan assumes you own, and what it does not
Owned: a flashlight per person and spare batteries; a power bank sized by the calculator; a thermometer for the fridge; a cooler; water containers you can fill in ten minutes; a carbon monoxide detector with battery backup on every level, which Ready.gov lists first among appliance rules; a battery or hand-crank radio; the building manager's phone number written on paper.
Not owned, on purpose: a generator, a camp stove used indoors, a gas oven left open for warmth, candles near curtains. Every one of those is on Ready.gov's list of things that turn an outage into an emergency room visit.
Not decided here: which power bank or battery station. Part v of this chapter puts a battery station against a small generator using each state's outage hours, and part ix is the kit you can assemble from what is already in the apartment.
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- i.How much water your house needs, and the Water Freedom System review
- ii.Rain barrel calculator, by state
- iii.48 hours without power: a small apartment's quiet plan
- iv.A 30-day pantry, priced with this month's numbers
- v.Generator vs. battery: what your state's outages say
- vi.Water from air, explained by the humidity where you live
- vii.This week's drought map, and your plan on top of it
- viii.Filter, treat, test: making stored water drinkable
- ix.The blackout kit you already own
Questions people ask
Why plan for 48 hours and not 72?
Can I heat the apartment with the gas oven?
Can I run a small generator on the balcony?
What about medicine that has to stay cold, or a device that needs power?
Where does the power bank number come from?
Last updated: 10 September 2026. Numbers are from public sources with the dates shown; your building, your phones and your weather will differ.
How we stay honest: this page has no affiliate links and no sponsor. We have not lived through a 48-hour outage in an apartment while writing it; the food and safety numbers are Ready.gov's, the outage hours are EIA's, and the sequence and the power bank assumption are ours and say so. The video belongs to the creator credited above. Nothing here is professional or medical advice.