I think I've finally updated my Node Red to handle random slots.
I have my system discharge the house batteries between 19:30 and 23:25, it will then charge them between 00:00 and 05:30.
Discharging and charging is not at full power, it calculates the rate so that it reaches the desired target at the end time, this is better for the grid and my equipment.
I've now modified the flows so that in a EV charge slot outside the above charging periods it will charge the houses batteries at a fixed rate, taking into account AC loads, so the batteries never discharge to the EV.
I have my system discharge the house batteries between 19:30 and 23:25, it will then charge them between 00:00 and 05:30.
Discharging and charging is not at full power, it calculates the rate so that it reaches the desired target at the end time, this is better for the grid and my equipment.
I've now modified the flows so that in a EV charge slot outside the above charging periods it will charge the houses batteries at a fixed rate, taking into account AC loads, so the batteries never discharge to the EV.