Ishan31

Hi Linda, Thanks for the response. The requirement arises in order to optimally size no. of strings to MPPT of central inverter while complying to maximum current limitation of MPPT. Since the rear side current in bifacial is highly variable parameter I wanted use PVsyst to get fair estimation of it so that MPPT can loaded optimally, avoiding clipping losses. Can you suggest some solution here? Also can we find the single string current from IArray with total no. of strings

Hi, I am trying to understand the Bifacial gain for my system in terms of electrical output for each string. The simulation results gives me I (Array) which i think is total Imp of plant both including front and rear contribution and not on string level. I understand PVsyst follow one diode model for Bifacial module but still is there any way PVsyst providing the value of this rear side and front side Imp separately for each string.

@Linda Thoren I clearly understand in terms of overload loss. However Inverter has limitation in terms of maximum current per MPPT and since the string sizing is only based on the front side Imp ,I guess the string distribution along MPPT has to be evaluated separately?

Hi, While working with Bifacial module ,the system sizing in PVsyst is considering only the front side side parameter ( Neglecting Imp due to rear side) to calculate the string sizing, Inverter overload losses and Pnom ratio.I understand that bifacial gain highly variable outcome but under certain conditions rear side contribution would lead to higher overload loss and Pnom values.I want to understand how PVsyst is considering the bifacial outcome in system sizing.

@dtarinCan you please clarify how these modules (Modules along the edge) receives less shading. Because I think only the first row will receive less shading while rest of row will have similar shading effect due to mutual shading. Does it also means that given project would always generate more power in 3D scene in comparison to Unlimited tracker mode.

Dear Sarikaya, I am still awaiting the response on the above topic for the project files emailed on multiple occasions at support@pvsyst.com.

While simulating project with identical capacity, components, and loss factor , PVsyst has generated variable generation( E grid MWh) results for Unlimited tracker mode and the 3D scene mode . Egrid MWh Near Shading loss : Irradiance Unlimited Tracker 1438860 -1.8% 3D scene 1481095 -2.4 % I want to understand how PVsyst is generating variable results for Unlimited tracker and 3D scene mode which should not be case for identical project parameters(Pitch,1P,Other loss factors). What are the factors resulting in this variation .