Backup Power
Understand backup electricity options and the safety constraints that matter during outages.
Backup Power During an Outage
Read the consolidated guide and follow related preparedness pathways.
Generator vs Portable Power Station
Read the consolidated guide and follow related preparedness pathways.
Generator Safety
Read the consolidated guide and follow related preparedness pathways.
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Start with a load inventory
Backup power becomes easier to plan when you separate energy from power. Power is how much a device needs at a particular moment; energy is how long you want to run it. A system may be able to start a device yet lack enough stored energy or fuel to run it for the duration you expect.
| Need | Low-complexity option | When to consider more capacity |
|---|---|---|
| Phones and small electronics | USB power banks | Several users, multi-day outage or satellite/radio equipment |
| Lighting | Rechargeable/battery LED lanterns | Large property or long-duration use |
| Refrigeration | Cold-management plan first | Long outages where preserving food justifies the energy/fuel |
| Critical medical equipment | Device-specific emergency plan | Discuss backup requirements with the equipment/provider and utility where applicable |
Portable power station or fuel generator?
Battery power stations are quiet at the point of use and can handle many small-to-medium loads without combustion exhaust. Their limitation is stored energy: once depleted, they need a charging source. Fuel generators can support larger or longer loads when fuel is available, but they introduce exhaust, fuel-storage, noise, weather and electrical-safety considerations.
- Never operate a portable generator inside a home, basement or garage.
- CDC guidance places generators outdoors at least 20 feet from doors, windows and vents.
- Use battery-powered or battery-backup carbon-monoxide detectors.
- Follow the manufacturer's instructions for weather protection, grounding/connection and rated extension cords.
- Do not improvise a connection to household wiring; use professionally installed transfer equipment where required.
These safety points are based on current CDC outage and generator guidance. Always follow the instructions for your specific equipment and applicable electrical rules.