FoxESS Community - Owners & Installers Forum

I am running predbat with FoxESS-Modbus and my new KH7 inverter. I've noticed that FoxESS-Modbus can only put the inverter into one of three work modes:
- Self Use
- Back Up (when Back-Up or Force Charge is selected in FoxESS-Modbus)
- Feed-In Priority (when Feed-in First or Force Discharge is selected in FoxESS-Modbus)

The problem is that, due to the above limitations:
- If Force Charge (Back Up) mode is invoked when excess solar is being generated the excess solar is discarded - it is neither exported nor used to charge the battery
- If Force Discharge (Feed-In Priority) is selected it will not export charge from the battery to take advantage of good export rates unless feed-in limits have been exceeded. It will only export excess solar to the grid.

This means that I lose two major benefits of predbat:
- taking advantage of cheap/free/negative import rates to charge the battery during the day without discarding excess solar energy that is being generated at the time
- taking advantage of high export rates by exporting charge from the battery.

Does anyone have any advice for how/whether I can actually achieve either of the above benefits of predbat, either with or without FoxESS-Modbus?

I think you may have to create account to message Nathan under discussions (I see you have now done!)
https://github.com/nathanmarlor/foxess_modbus

or look to see if the solution from Nicois fits your needs better?
https://github.com/nicois/foxess-control