This site is now in read-only archive mode. Please move all discussion, and create a new account at the new Victron Community site.
3x 48/5000 Multi
2x 250/100 MPPT
Venus GX
Batteries in IDLE mode.
No DC consumption at all (off grid installation).
Solar in/power out has a difference of about 800W.
This can't be right..?
A few hundred watts in energy loss OK, but 800??? This gap is constant, even getting bigger with more power out (through)..
Depending on the type of load, inverted resistive loads lose about 10% at the most efficient, other load types lose more.
Reporting isn't always in sync, at 13% that is about right for efficiency.
It's basic physics.
Maximum efficency of your inverters is about 95%. The efficiency drops at higher loads.
Also each inverter draws 20W or so for self-consumption. The MPPTs have some small power draw. Venus GX probably takes 5W or so. Cable/wire loses can be high, too, if the wires are undersized. After you take these out, you are left with about 89% overall efficiency. Not great, not terrible. :)
