A backup system is only as useful as the appliances it can carry for the time you need them. This guide explains how to list the devices that matter, how to read power and runtime figures, and why emergency power is not automatically part of every home battery. It also covers the one rule we never compromise on: no feeding power back through an ordinary socket. Energieopslag040 advises on the safe configuration; Off Grid Supply, the webshop behind Energieopslag040, lists current portable units.
Write down what must keep running and for how long: fridge, lighting, router, phone charging, medical equipment. Watts multiplied by hours gives the energy you need — a fridge cycling on and off uses far less than its label suggests.
Continuous power keeps devices running; peak power absorbs short surges such as a motor starting. Check both figures, and keep in mind that heat pumps and induction hobs usually fall outside a modest backup.
Many home batteries do not energise sockets when the grid fails. Backup output needs the right inverter, a changeover arrangement and dedicated circuits — quoted separately and installed professionally.
Connecting a battery or power station to a wall socket to supply the house is unsafe: the circuit is not designed for it, and it can endanger anyone working on the grid. Backup power belongs on a professionally installed, properly protected circuit with a changeover function — never on a standard plug.
Share your device list and wishes through the quote form. We check what is feasible in your meter cabinet and confirm what a safe backup configuration would involve.
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