KH10 Grid Import during ForceDischarge period after FD SoC% reached
Posted: Mon Oct 13, 2025 7:48 pm
Hi,
I've got a Force Discharge rule which is set to trigger during our afternoon peak period 16:00-19:00 ... it's currently discharging the battery down to an FD SoC of 50%, with an FD Pwr of 10kW, while the inverter has a Max Discharge Pwr set to 6kW, so there's a few kW overhead for the house load
This is fine while the Force Discharge is happening, but once the FD SoC% has been reached and until the end of the configured Force Discharge period, any house load seems to be drawn from the grid
e.g. see the attached chart from this evening - FD SoC% was reached around 17:30, and we cooked dinner around 18:00 and all the house-load for cooking came from the grid, which has certainly reduced any profit from selling power during peak times!
I don't want it to work this way - once the FD SoC% has been reached, I would like the house load to be drawn from the battery, otherwise we are paying for power at the most expensive time of day
Is there any way to make this happen, given current inverter config options ?
I can see two less than ideal options:
* lower the Max Discharge Pwr so that we never quite achieve the desired depth of discharge - this isn't ideal because it reduces the profit we would make if there was a good solar day, and we are still generating while discharging. It's also a bit rubbish, because if I want house load to be sourced from the battery during FD, then the actual FD power must be controlled with the Max Discharge Pwr setting on the inverter console and can't be changed from the app
* shorten the Force Discharge period - but also reduces potential profit on good solar days
Am I missing something better ?
Thanks!
I've got a Force Discharge rule which is set to trigger during our afternoon peak period 16:00-19:00 ... it's currently discharging the battery down to an FD SoC of 50%, with an FD Pwr of 10kW, while the inverter has a Max Discharge Pwr set to 6kW, so there's a few kW overhead for the house load
This is fine while the Force Discharge is happening, but once the FD SoC% has been reached and until the end of the configured Force Discharge period, any house load seems to be drawn from the grid
e.g. see the attached chart from this evening - FD SoC% was reached around 17:30, and we cooked dinner around 18:00 and all the house-load for cooking came from the grid, which has certainly reduced any profit from selling power during peak times!
Is there any way to make this happen, given current inverter config options ?
I can see two less than ideal options:
* lower the Max Discharge Pwr so that we never quite achieve the desired depth of discharge - this isn't ideal because it reduces the profit we would make if there was a good solar day, and we are still generating while discharging. It's also a bit rubbish, because if I want house load to be sourced from the battery during FD, then the actual FD power must be controlled with the Max Discharge Pwr setting on the inverter console and can't be changed from the app
* shorten the Force Discharge period - but also reduces potential profit on good solar days
Am I missing something better ?
Thanks!