I have a electro-solar boat on Lake Léman (Lake of Geneva) : www.solarly.ch
My aim is to know when the engine uses only the PV production to show my passagers how the sun is powerfull. Therefore the afficher BMV should oscillate at 0 between some + amp and - amp when the PV production equal more or less the engine consumption.
Setup:
Two PV high grade modules connected to Victron MPTT 100 & 75
Batteries Exide Sonnenschein Pb 24 V 180 Ah (2 packs of 4 x 6 V 180 Ah) to have enough power available on route when no sunshine or during the night.
Engine Torqeedo Cruise 2.
I would like the afficher BMV 712 S to show the amp + or - according to the difference between the power produced by the PV and power used by the engine when running.
Unfortunately the afficher BMV 712 S does not shows this figure, it shows only minus amp according to consumption.