FoxESS Community - Owners & Installers Forum

Hi,

I have a new install of FoxESS KH10 inverter with Solar, connected to my HA using USB to RS-485 adapter. I have installed modbus, and I can see the inverter on HA. However, I am unable to find the controls for limiting import and export. For e.g., currently the export prices are negative and my battery is full, I would like to stop export.

Appreciate any pointers.

Thanks
Sandeep

So when U say your export is - are U saying they are charging u to export ?

Yes, when the grid has too much Solar.

That's crazy, I'm sorry but I don't have any recommendations for you, but you would think there would be a setting to turn the inverter off once battery has reached 100% , my best advice would be offer all the neighbours extention leads & tell them to use the excess power.

sandeepkk2005 wrote: ↑Mon Jan 19, 2026 1:05 am Yes, when the grid has too much Solar.

Does the excess Solar occur at random times, or fixed?

If it is fixed times, can you not set an automation to force discharge beforehand for a few hours so the battery has capacity to mop up your Solar generation. To protect the discharge session from draining on a dull day, make sure to add in And-if "SoC" is above xx%

Example, If time is 09:00 to 11:00, and if SoC is above 50%, then set Work mode to discharge
I am new to Home Assistant, but I am sure that you can make it do something like this.

Sandeep,

You are on Amber like me. I am not sure this will work but can you adjust your grid export limit to zero while this occurs?

simonsthill wrote: ↑Mon Jan 19, 2026 10:28 pm Sandeep,

You are on Amber like me. I am not sure this will work but can you adjust your grid export limit to zero while this occurs?

Thank you Simon for your input, you are correct, if you are able to adjust this value in Modbus that would work for the best.