PV potential power?

[npotternyc]

I have an off-grid sol-ark setup with home assistant and a few automations setup that run when it thinks there is surplus power to be used. I am aiming to use as much power as possible while still keeping my batteries at 100%.

My problem is that the PV output only shows what is currently be used, not what the PV potential could be. Once my batteries are charged it only shows PV of what the house is using, not what I could be using.

I was thinking of checking out the modbus signals to see if something like this was available, but does anyone know if it is/isn't?

[pbix]

What you are looking for is called the maximum power point. It changes dynamically with weather conditions so is not a constant. You should Google it to learn more about it.

Even your inverter does not know this point unless you are actually operating at that point so no such information is available in the modbus map in the cases you discuss.

You can search for the point yourself by increasing your load until you see the battery start to discharge. Then reduce your load until it stops discharging. It can be quite complicated to do this and outside the scope of what I am offering in this integration but that is one of several ways you can track the maximum power point yourself.

[npotternyc]

Thanks. I suspected it was not available but thought I'd ask.