Hw to calculate yearly time series of produced energy for a PV generator

[pgambetta]

Good morning. I would like to know whats is the right wat to to calculate the yearly time series for the produced energy of a PV generator during its life using as a base the yearly production obtained from PVsyst and assuming a module's average degradation over the time. have I to assume that the annual produced energy obtained from the PVsyst simulation is the production for the first year?, and from it, i have to derate the power production for the following years with the panels degradation factor (0,5-1%)?

Thanks you for your help, best regards

Pablo

[André Mermoud]

Yes the "normal" simulation is valid for the first year of operation.

Now if you want to take a long-term degradation into account (of the order of -0.5% to -1%/year), you can put this additional loss in the "Module Quality Loss" factor.

See our FAQ How to define the "Module Quality Loss" parameter ?

[pgambetta]

Thank you very much André.