Incorrect validation for b1 on addstatus?

Battery
#1

I have a 6kw PV array and have been pushing status to pvoutput for years (sid 2558). Recently I added a separate battery system to my home, which is charged by both the existing PV and the grid. It has a 10kw inverter, so can charge/discharge the battery at 10-11kw.

I have started pushing values for b1 through b5 for my existing system into pvoutput. These show up on the live view, except for when the battery is charging from the grid at more than 6kw. When it’s charging at >6kw, I see this error come back from the POST:

Failed to send to pvoutput API: Bad Data 400: Battery charge [9991.0] too high for system size [6300] (400)

The battery can and is charging at 9991 watts, as the inverter can do that. I think that validating battery charge against the PV array size (a.k.a. “system size” - the 6300W in the error message) is wrong? If so, could this validation be removed? Or if I need to configure differently, please let me know.

Thanks.

#2

The b1 charging validation has been increased from 1.5x to 2x the system size.

The maximum should be now be 12600W.

#3

Thanks @bankstownbloke. This should solve it (I have seen the inverter peak at 11-12kw at times, so will monitor to see).

That said, is the 2x just a stop gap for now? I am certain there would be people out there adding batteries with inverters that exceed the 2x validation, e.g. 4-5kw of existing panels, adding an inverter with 10+kw capacity… I wondered if there are plans to include battery inverter size, or adding battery as a separate system, etc?

#4

There will be a ‘Battery Inverter Size’ in the system details soon. We can use battery inverter for b1 validation and fall back on system size if this information isn’t available.