Run a Blackout Drill: Test Your Backup Before You Need It

Before you flip the breaker

Five minutes of prep, and one important warning.

Do not do this if anyone in the house depends on medical equipment, unless you have specifically planned how that equipment stays running for the whole drill. The point is to find failures, not to create one.

Also: check whether anything in your house needs a reset after a power cut — some alarm systems, some HVAC controls, some older appliances. Know before, not after.

Then:

• Charge the power station to 100%
• Tell everyone in the house what is happening and when
• Note the time
• Put your phone on the counter and leave it there. You are not allowed to look things up

The drill, in order

1. Kill the main breaker. Not individual circuits — the main. You want the real experience, including the things you forgot are electric.

2. Start a written list. Paper. Every time you reach for something that does not work, write it down. This list is the entire output of the exercise.

3. Do a normal morning. Make coffee. Use the bathroom. Feed people. Let the failures come to you rather than hunting for them.

4. Get the fridge running on the battery. Time it. How long from "power is out" to "fridge is running"? If it took twelve minutes and involved moving furniture, that is a finding.

5. Watch the load readout when the compressor starts. That spike is your surge number, measured rather than guessed. Write it on tape and stick it on the unit.

6. Try to get online. Router and modem on the battery. Does the connection actually come back, or does your ISP's equipment need power too? See Will My Internet Work During a Power Outage?

7. Open the garage door by hand. Find the red cord. Confirm it works and the door is balanced. Details here.

8. Find out if your gas stove lights. Many US gas ranges light with a match when the igniter has no power. This is worth knowing.

9. Sit in one room for the last thirty minutes with whatever lighting you actually have. This is where people discover their emergency lighting is one candle and a phone at 40%.

10. Restore power. Write the list up properly.

What people always find

From doing this ourselves and hearing about it from readers, the same items come up over and over:

• The extension cord is 15 feet and the fridge is 30 feet away
• The flashlight batteries are dead, or the flashlight is in a drawer nobody can find in the dark
• The power station was at 40% because nobody topped it up since spring
• Water: on a well, there is none at all, and nobody had thought about that. See Can You Run a Well Pump on a Solar Generator?
• The garage door release cord is painted over, seized, or missing
• Nobody knows where the utility's outage reporting number is
• The fridge trips the unit because of a thin cord, not a small battery. See What Extension Cord Do You Need?
• Cash: everything is cards, and card readers need power too

The two-hour version vs the overnight version

Two hours finds the equipment problems. Do this one first, and do it twice a year.

Overnight finds the human problems — sleeping in a hot or cold house, kids, pets, boredom, and how much battery you really consume when nobody is being careful. Do it once, in the season you actually worry about. If you fear winter outages, drill in January, not in June.

The overnight drill is where people discover their 1,000Wh unit was sized for a spreadsheet rather than a household.

Turn the list into three actions

Do not try to fix everything. Take the list and sort it:

Free fixes. Move the cord. Change the flashlight batteries. Write the utility number on the fridge. Clear the path to the side door. Do these the same day, or they never happen.

Cheap fixes. A 12-gauge extension cord. A headlamp per person. A fridge thermometer. Some cash in an envelope. Usually under $100 total and it addresses most of the list.

The real gap. Usually one thing: heat, water, or medical. That is the item worth spending real money on, and now you know which one it is — which means you are buying for a measured problem instead of a marketing category.

Put it on the calendar

Twice a year, on days you will remember. Daylight saving changes work well, and they already carry the smoke-alarm-battery habit.

The drill is also the moment to charge the unit to 100% for the season ahead, check the firmware, and confirm nothing has drifted. See How to Store a Power Station Over Winter.

The short version

• Kill the main breaker for two hours on a Saturday and write down every failure.
• Time how long it takes to get the fridge running on the battery.
• Measure the compressor surge on the unit's display instead of estimating it.
• Test the garage door release, the gas stove, the internet and the water.
• Sort the findings into free, cheap and real. Buy only for the real one.