# PVsyst's forum

Welcome on PVsyst's forum.
 It is currently Wed Sep 23, 2020 2:45 pm

 All times are UTC+02:00

 Post new topic  Reply to topic Page 1 of 1 [ 1 post ]
 Print view Previous topic | Next topic
Author Message
 Post subject: Module Efficiency Loss and Inputs for the SimulationPostPosted: Wed Nov 08, 2017 11:03 am

Joined: Fri Oct 28, 2016 7:27 am
Posts: 10
Hello,
I wanted to clarify something regarding the Module efficiency loss in the system simulation. I have read and understood that PVSyst uses a method where they take a quarter of the sum of the inferior and superior tolerance level for the Pmpp. For example, if the tolerance range was -3% to 3% then the default module efficiency loss turns out to be (3%+3%)/4=1.5%. 1.5% will be a loss. And for a tolerance range of (0%+10%)/4=2.5%. This will be a 2.5% gain. What happens if you have a range like -3% to 10%? One of the modules I have to use has such a range and when I click the default button for the module efficiency loss, it comes up to be -0.3%. This is a 0.3% in gain. Could you please explain how this value came about? Does it have something to do with statistical analysis with the normal distribution curve?
Thank you

 Attachments: image.png [ 19.31 KiB | Viewed 2125 times ]
Top
 Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending
 Post new topic  Reply to topic Page 1 of 1 [ 1 post ]

 All times are UTC+02:00

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

Search for:
 Jump to:  Select a forum ------------------ PVsyst SA Announcements (read only)    Latest news - Bifacial Modelling and 3D Drawing    PVsyst's forum rules FAQ (read only)    Installation and use of PVsyst    Meteo data    PV Components    Shadings and tracking    Simulations : parameters    Simulations : results    Standalone and pumping systems Your questions about PVsyst    Howto    Problems / Bugs    Meteo data    PV Components    Shadings and tracking    Simulations    Suggestions    Tutorials : Feedback and requests Links    PVsyst website    YouTube Channel