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No, I don't think that is true. And as far as I can tell, the I/O reference just gives you an example, very generically named "PV Inverter", and not the specific model you are giving us a link to the documentation. You'll note the efficiency at various power and nominal voltages also doesn't match your specific model.

Because you shouldn't take my word for it, here's something to back up my claim.

  • The Night Tare Loss is read in DCtoACInverter constructor here into the variable standbyPower_. In no case this variable is being changed to account for 100 hours or whatever.
  • Then you want to look at DCtoACInverter::simulate, here and here, where you'll see it is used as is.

So I think in your specific inverter, Night Tare Loss Power should be 0.02W.