Growatt SPH switch function?

Configuration
1

Hi all, I’m having problems controlling my Growatt SPH + Battery system via both Home Assistant and Solar Assistant.

  1. Can anyone tell me what the switch to the right of the Growatt SPH title is/does in the attached picture.
  2. Should I have Backup EPS enabled as show in the picture? I don’t have any backup system and I’d hate to fry an engineer if there was a power outage (we do get the odd short one).
    Screenshot 2024-08-18 101708
    Screenshot 2024-08-18 101708733×199 2.65 KB
2

Hello !
In this case the backup will enable the backup exit off SPH in your location.
The exit is isolated from the grid and will power separate load.

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EPS stands for “Emergency Power Socket” as far as I know. Our SPH inverter has a red double-gang power socket wired to it, and if Backup EPS is enabled then this socket will be live, powered by the inverter, even in a power cut when the rest of the house loses power. It’s so that you can run an extension lead from the socket to power e.g. your fridge/freezer if there was an extended power cut, or a kettle etc.

The switch in your screenshot by the title, assuming that card is from your Overview dashboard, is an automatically created toggle that will turn on/off all the entities that are shown in that card (so probably not something you want to use in this case).

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