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Re: Using Home Assistant to control house battery and EV battery charging with octopus intelligent go
Posted: Thu Apr 30, 2026 3:55 pm
by MaterialBarracuda48
Hi John, sorry to hear you have admitted defeat for now. I am hoping that you can leave it for a bit in the box, and take a fresh look at the project a little later.
From what I can understand from the post linked to, is that you can add this to the HA via a custom repository, and once you input account details or whatever it needs, it can allow you to have control over your Inverter.
So, fingers crossed you take a look again, with fresh eyes/mind.
Re: Using Home Assistant to control house battery and EV battery charging with octopus intelligent go
Posted: Fri May 01, 2026 11:23 pm
by JaseP13
Hi Will, I’ve been following some of your tutorials and this thread as need to do exactly the same as John. For now I have linked HA to FoxESS via cloud and looks like that’s working, and I’ve already hooked up my Octopus IOG acct aswell. I’d it possible to create charging rules for my batteries based on IOG status via the fox cloud integration or do I need to go down modbus route (I realise I have to accept 5minute rule)?
If I can use this approach is there a tutorial on building and deploying a rule that will integrate my inverter with my smart ev charging to avoid battery drain?
Thanks
Jason
Re: Using Home Assistant to control house battery and EV battery charging with octopus intelligent go
Posted: Sat May 02, 2026 10:21 am
by MaterialBarracuda48
JaseP13 wrote: ↑Fri May 01, 2026 11:23 pm
Hi Will, I’ve been following some of your tutorials and this thread as need to do exactly the same as John. For now I have linked HA to FoxESS via cloud and looks like that’s working, and I’ve already hooked up my Octopus IOG acct aswell. I’d it possible to create charging rules for my batteries based on IOG status via the fox cloud integration or do I need to go down modbus route (I realise I have to accept 5minute rule)?
If I can use this approach is there a tutorial on building and deploying a rule that will integrate my inverter with my smart ev charging to avoid battery drain?
Thanks
Jason
The short answer Jason, is to determine if you can make ANY adjustments to the system with the cloud integration.
If you can change the work mode of the Inverter via the cloud (I am not sure you can?) then you should be able to make a working solution.
If this is not going to work, then please read whole thread in regards to the linked solution for HA from user nicois. I think this can adjust the work mode of the Inverter.