I’m using a 150/75 mppt charge controller on a small, remote system to aerate a pond. I’ve got an RPi running VenusOS and have VE.Direct cables to the change controller, Victron SmartShunt, and Victron 24v/1200W inverter. I’m accessing the data via mqtt to control when to run the load.
My question has to do with what data is actually being provided by the charge controller. Specifically, the PV voltage, current, and power don’t make sense. At the moment, it’s reporting 55.3V, 24.9A, and 678W. The voltage*current comes out to 1344W. The PV array is 2x400W panels. Further, the power going to the batteries shows 27V, 15.8A, 426W (math works out). The inverter is providing ~250W on the AC outlets. I can’t see any of the inverter data at the moment. Can someone explain the power verses voltage and current readings? I suppose verifying at least the voltage would be useful. Looking at the specs for the panels, I’m going guess that the charge controller is reporting 2x the panel current capability.
Any other date needed to resolve this?
Thx, Chris