Avoid force discharge but without HA
Posted: Sun Jun 07, 2026 12:43 pm
The biggest foxess scheduling bug: if the configured minimum SoC is reached during a force discharge, the inverter will use grid energy. Since the main reason for discharging is to profit from expensive tariffs, it is exactly the wrong time to import.
I made a HA extension to assist with this, which ensures you revert to self use if you hit the SoC, as well as pausing the discharge if it looks like you are at risk of reaching that SoC before the end of the discharge period. But some people were asking for a standalone version so they don't need Home Assistant, so I made this: https://foxess.297108.xyz
It's pretty simple and the UI is a little rough, but some of you might want to try it out. With your API key you can set the schedule and not worry about importing energy at the worst possible time. There's a simulator to let you better model the energy and power flows.
While the HA version supports websockets for realtime data feeds, this is a simpler implementation which polls the inverter (via the cloud API) every 5 minutes during a discharge.
There are other similar sites I've seen, but they appeared overly complex, trying to manage your whole energy setup, while my site just helps with the force discharge, not interfering with anything else.
I hope some of you find it useful.
I made a HA extension to assist with this, which ensures you revert to self use if you hit the SoC, as well as pausing the discharge if it looks like you are at risk of reaching that SoC before the end of the discharge period. But some people were asking for a standalone version so they don't need Home Assistant, so I made this: https://foxess.297108.xyz
It's pretty simple and the UI is a little rough, but some of you might want to try it out. With your API key you can set the schedule and not worry about importing energy at the worst possible time. There's a simulator to let you better model the energy and power flows.
While the HA version supports websockets for realtime data feeds, this is a simpler implementation which polls the inverter (via the cloud API) every 5 minutes during a discharge.
There are other similar sites I've seen, but they appeared overly complex, trying to manage your whole energy setup, while my site just helps with the force discharge, not interfering with anything else.
I hope some of you find it useful.