We've got a solar array and storage battery
Are these meant to keep the house running for a short while if you get a power cut? Mine don't seem to be able to do this.
A lot depends on the controller for the battery storage. It has to be able to isolate from the Grid so as not to electrocute anyone working on the powerline when the power is down. My first system with a SolaX controller powered the house during a power cut as does my Tesla Gateway Version 2. (Controller). The original Tesla controller when they first came out here could not isolate from the Grid so wouldn't allow back up power.
