WMaxLimPct in HA
Check these threads:
What is your setup? Fronius Inverter + Powerwall? + any power/smart meter?
When the battery is filling up, I need to allow a trickle out so the battery can detect the excess and soak it up. I don’t need to do that when the battery is already full… so basically it’s microoptimisations.
It seems like a race condition where
Export Price negative set No Exports
Battery needs to detect exports to charge
It sounds similar to my secondary inverter + battery problem.
Negative FIT - No exporting
Secondary inverter is set to 0 exports and because it has no smart meter attached to it - means 0 solar production.
Battery is connected to primary inverter - so no communication between the battery and secondary inverter.
There are situations where the battery is not charging at full capacity because the primary inverter is supplying house loads while the secondary inverter is still at 0 solar production.
I’ve set my secondary inverter to dynamically adjust WMaxLimPct depending on whether I am exporting/importing and whether the battery is charging above or below a certain rate.
Also in situations of positive FIT - I want to discharge my battery at the maximum rate but in doing so reduces the solar panel production as inverter is limited to AC output of 10kW, so I have a formula to dynamically adjust the battery output depending on what the panels are providing.
Give it a crack in NodeRed