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DC losses
https://forum.pvsyst.com/viewtopic.php?f=25&t=348
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Author:  1Plasmon [ Fri Jan 25, 2013 4:57 am ]
Post subject:  DC losses

Can someone tell me of the assumed 2% losses on the DC side? What is the background to this assumption? I know that once the layout of an array is worked out, the copper losses could be estimated. Thanks, Al.

Author:  AndrĂ© Mermoud [ Wed Mar 06, 2013 11:08 pm ]
Post subject:  Re: DC losses

PVsyst puts a default value of 1.5% for the array ohmic loss.
It is an reasonable initial guess for your first simulations of a system.

But after that you have of course to estimate your real array wiring resistance according to your own cabling options. There is a tool for helping you in this task.

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