I finally managed to get ess working, but in a bit confused as to why my battery monitor is showing a lot more power usage than my loads. Any ideas where the extra power is going? How accurate is the monitor? 
asked
Extra power drain from batteries
Thanks I'm beginning to understand all this now.
Devices use power. DC/AC conversion has 10-20-% loss. Many, many. many topics on this subject.
That’s before you consider reading errors at low power.
Welcome to the world of physics.
But this figure is around a 30% loss and the multiplus is said to be over 90% efficient.
The battery power is going straight to the multiplus and fed to the loads. Grid feed looks to be zero because my utility meter hasn't moved since starting the system up around 3 hours ago.
