PVsyst's forum

Welcome on PVsyst's forum.
It is currently Sat Sep 19, 2020 7:27 am

All times are UTC+02:00




Post new topic  Reply to topic  [ 2 posts ] 
Author Message
PostPosted: Fri Aug 24, 2018 6:41 pm 

Joined: Wed Jun 07, 2017 4:48 pm
Posts: 13
Dear fellow PVSyst users,

I recently was surprized by some very large loss factors when using Boviet 6612P 320 Optimized modules, as shown:
Attachment:
File comment: Crazy Big IAM Factor Losses
2018-08-24_12-35-56.png
2018-08-24_12-35-56.png [ 28.1 KiB | Viewed 1829 times ]
Investigating the IAM curve, the Scandia curve looks really strange:
Attachment:
File comment: Scandia Lab's IAM factor versus others
2018-08-24_12-33-09.png
2018-08-24_12-33-09.png [ 25.34 KiB | Viewed 1829 times ]
In general, I thought that the Scandia model was experimentally confirmed. Is this the case? Has anyone seen this before? What would you consider a reasonable approach to this?

Thank you,
Link


Top
   
PostPosted: Tue Aug 28, 2018 11:42 pm 
User avatar

Joined: Mon Apr 16, 2012 7:29 pm
Posts: 1680
I really don't understand how you got this result.
The Sandia model is hard-coded in PVsyst, the values are unmodifiable and give a result very close to the normal Fresnel's model.

This curve is probably a user-defined IAM profile, specified in your PV module, with completely erroneous parameters.
Attachment:
File comment: Sandia model and Fresnel, normal glass and with AR-coating
IAM_SandiaModel.png
IAM_SandiaModel.png [ 18.29 KiB | Viewed 1789 times ]


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 2 posts ] 

All times are UTC+02:00


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited