E_Grid larger than Produced Energy (E_Avail)

[Wenshuo Zhang]

Hello!

I'm simulating a PV system, self-consumption for trackers but no storage.

In the PVsyst report, Produced Energy is 257GWh/year but E_Grid is 259GWh/year. If I take out self-consumption, these two numbers will match.

Does this look right? From below reference, E_avail. shall also be larger than E_Grid.

https://www.pvsyst.com/help/self_consumption.htm

 

Below is from the PVsyst report:

 

 

Does anyone know the reason? Thanks.

 

Best regards,

Wenshuo

 

[Michele Oliosi]

Hi, thanks for the feedback.
Yes this is definitely a bug. We thought it just happened with the grid limitation, but apparently just self-consumption and AC / auxiliary losses are enough.
I will update the issue and it should be fixed eventually in one of the future patches.

[Wenshuo Zhang]

Hi Michele,

Thanks for your prompt reply. I'll deselect the self-consumption and manually calculate for our simulation result for now.

Best regards,

Wenshuo

[André Mermoud]

This bug has been fixed in the version 7.2.19.

The value "produced energy" is not correct,  the results  E_Solar + E_Grid  at the bottom of the loss diagram, or on the monthly "main" results, is the correct value.

The error is 0.62%. This affect the PR shown on the Main results.