Backup power

The battery keeps your home’s main circuits running during an outage, and it hands back to the lines on its own when the power returns.

During a power cut

When the grid goes down, the battery disconnects from the lines straight away and keeps your home’s main circuits running for as long as its charge lasts.

  • Nothing to switch

    You do not flip anything or start anything. It happens on its own, and hands back to the lines when they return.

  • Hot water and EV charging wait

    They sit on controlled circuits, separate from the battery, so the charge goes to the rest of the house.

  • Recharging

    Once the street is back on, the battery tops up on its own, ready for the next one.

What stays on

Your home’s main circuits: lights, power points, the fridge and freezer, your internet and the appliances on them. The two exceptions are your hot water cylinder and EV charger, which are on their own controlled circuits and come back with the grid.

How long it lasts

It depends on how full the battery was when the power went and how much you run while it is out. When the grid goes down, we send you a text to let you know. Holding off on the dryer, the oven, heaters and other heavy appliances keeps your lights on for longer. If the outage is long, the battery will run down, and your power returns when the grid does.

If someone at your place depends on power

If a person in the house relies on mains electricity for medical equipment, register as medically dependent. It costs nothing, it changes how we handle outages and contact, and we will help you do it. Battery backup helps, but it does not replace clinical backup, and it should never be the only plan.

How we support medically dependent customers · What to do in a power cut

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