Connecting backup power to your home: the options

There are four broad ways backup power reaches your appliances. Only the first is something you do yourself, and it is the only one our planner covers.

1. Plug items directly into the unit

You plug appliances into the power station, or into outdoor-rated extension cords run from the generator, as the manufacturer’s manual describes. This works for plug-in items such as a refrigerator, lamps, a router or a plug-in sump pump.

2. A power inlet with an interlock or a transfer switch

A licensed electrician installs equipment that lets selected household circuits run from a generator or power station while keeping your home disconnected from the utility. This is how hard-wired items such as a furnace blower or well pump are usually powered. It typically needs a permit.

3. A manufacturer’s home panel system

Some power station makers sell panels that connect their units to home circuits. These are installed by a licensed electrician according to the manufacturer’s installation requirements.

4. Whole-home standby systems

Permanently installed generators or home batteries that switch on automatically. These are sold and installed through dealers and electricians.