Grid-Down Guide

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Power's Out — Do This First

A calm, step-by-step checklist for the first hour of an outage, before you know how long it will last.

Photo: Eden, Janine and Jim, CC BY 2.0

The first 10 minutes

Most outages end within a few hours. A few last days. You can't tell which kind you have yet, so the goal of the first hour is simple: stay safe, protect your food and water, and find out what's going on.

Downed lines: stay 30+ feet away

Treat every fallen wire as live. Never touch it, or anything it's touching — a fence, a puddle, a car. Call 911 and your utility. If a line falls on your car while you're in it, stay inside unless the car is on fire.

The first hour

Never use these indoors — not even in a garage

Generators, gas or charcoal grills, camp stoves, and propane or kerosene heaters not made for indoor use. Carbon monoxide has no smell, and it kills people in their sleep every winter outage. Run generators outside, at least 20 feet from doors, windows and vents. See Backup power & generators.

If it looks like a long one

If the utility says "24 hours or more," or a big storm hit the whole region, switch from waiting to managing:

  1. Food: Pack a cooler with ice for the things you'll use first so the fridge stays shut. Track the time with the fridge & freezer timer.
  2. Water: Set aside drinking water — about 1 gallon per person per day. See Water.
  3. Heat or cooling: Pick one room to keep comfortable and close off the rest. See Staying warm — and cool.
  4. Power: Charge phones and radios in the car (outdoors, engine running in open air), from power banks, or at a warming/cooling center.
  5. Pipes: If it's below freezing and you'll be without heat, drip faucets and open cabinet doors under sinks.
  6. Plan your days: Read The First 72 Hours.

When the power comes back

  • Wait a few minutes before plugging electronics back in. Turn things on one at a time so you don't overload circuits.
  • Check the fridge and freezer. Use a thermometer: anything perishable that sat above 40°F for more than 2 hours should be thrown out. When in doubt, throw it out.
  • Reset clocks, check the furnace, and restock the flashlight batteries you used.
  • Write down what you wished you'd had. That's your shopping list.

Sources: Ready.gov — Power Outages · CDC — Carbon Monoxide Poisoning · USDA FSIS — Food Safety in Emergencies

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