AC Ohmic losses and transformer losses missing

[Niels]

Hello,

I was going through my older simulated variants for a certain project and I couldnt open my report because i got an error for the transformer nominal power being far higher than the maximum output power of the inverter.

After looking at the screen for the ohmic losses i saw the following:

(first screenshot)

 

For some reason the ohmic losses for the AC and trafo losses have disappeared?

Its only for this specific pvsyst, at other pvsysts I still have my normal losses. see below

(second screenshot)

 

Please advise on how to continue, its unacceptable to loose results in such a way.

Edited October 5, 2023 by Niels
images were hyperlinks

[André Mermoud]

Probably your second screenshot corresponds to a stand-alone system, where the AC losses are not defined.