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PostPosted: Thu Sep 03, 2020 12:30 am 

Joined: Fri Jul 14, 2017 5:05 pm
Posts: 1
Hello,
I am simulating a plant that uses both bifacial and Monofacial modules with string inverters. Each inverter is either fed by bifacial or monofacial modules( not mixed)

With i try to define 2 subarrays, one with Monofacial and the other with bifacial, i get the following error - "When defining a bifacial system, all the sub-arrays should have a bifacial PV module. "

is their a way around this without creating 2 separate files?

Thanks!


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PostPosted: Wed Oct 14, 2020 10:11 pm 
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Joined: Tue Oct 18, 2016 3:31 am
Posts: 358
There is not. You need to create two variants.


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PostPosted: Tue Apr 20, 2021 11:46 pm 

Joined: Tue Jul 30, 2019 7:27 pm
Posts: 6
I was able to do it by re-defining the monofacial module as a bi-facial with 0% bi-faciality factor in a custom .pan file. It does give the message "The bifaciality factor has an unrealistic value of 0.00", but it saves the file and allows the monofacial module to be used in a separate sub-array to run the model.
Is this a valid workaround?


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PostPosted: Thu Apr 29, 2021 8:21 pm 
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Joined: Tue Oct 18, 2016 3:31 am
Posts: 358
Quote:
I was able to do it by re-defining the monofacial module as a bi-facial with 0% bi-faciality factor in a custom .pan file. It does give the message "The bifaciality factor has an unrealistic value of 0.00", but it saves the file and allows the monofacial module to be used in a separate sub-array to run the model.
Is this a valid workaround?
Run two models, one with monofacial, one with monofacial set with bifaciality set to zero and compare.


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PostPosted: Tue May 04, 2021 9:24 pm 

Joined: Tue Jul 30, 2019 7:27 pm
Posts: 6
I tried that and the bi-facial produces 0.54% more kWh - any ideas why?


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