1. PVsyst SA Announcements (read only)

   1. Latest news

      9

      posts

      • 
      • Webinar Q&A
      • By Lazare Fesnien, January 7, 2025
   2. PVsyst main changes

      8

      posts

      • 
      • PVsyst 8.1.0: main changes
      • By Michele Oliosi, April 14

2. FAQ (read only)

   1. Installation and use of PVsyst

      60

      posts

      • 
      • License activation error on a Virtual Machine
      • By Lazare Fesnien, May 26, 2025
   2. Meteo data

      25

      posts

      • 
      • New circumsolar treatment in V 7.0
      • By Bruno Wittmer, June 8, 2020
   3. PV Components

      25

      posts

      • 
      • New power sharing interface (v7.2.15)
      • By Michele Oliosi, August 8, 2022
   4. Shadings and tracking

      27

      posts

      • 
      • Electrical shading losses: partition model
      • By Michele Oliosi, February 19, 2024
   5. Simulations : parameters

      26

      posts

      • 
      • How to optimize simulation time
      • By Lazare Fesnien, October 19, 2023
   6. Simulations : results

      22

      posts

      • 
      • Since version 6.27, the electrical shading loss has changed, why ?
      • By Michele Oliosi, March 14, 2023
   7. Standalone and pumping systems

      5

      posts

      • 
      • Can I use a flow battery in PVsyst ?
      • By André Mermoud, June 24, 2019

3. Your questions about PVsyst

   1. How-to

      2.9k

      posts

      • 
      • PV + BESS Architecture
      • By Robin Vincent, Thursday at 01:10 PM
   2. Problems / Bugs

      3.1k

      posts

      • 
      • The Cutoff Time is <= than the time step duration.
      • By Luca Antognini, 3 hours ago
   3. Meteo data

      893

      posts

      • 
      • Generating sub-hourly meteo data (e.g., 15-minute resolution) in PVsyst 8.1 – Meteo databases and import options
      • By Linda Thoren, Friday at 01:28 PM
   4. PV Components

      785

      posts

      • 
      • ZXM7-UHLDD144 595W .pan file
      • By Lazare Fesnien, March 13
   5. Shadings and tracking

      1.8k

      posts

      • 
      • Bifacial Modeling for the Carport System
      • By PranavK, Yesterday at 07:31 AM
   6. Simulations

      2.9k

      posts

      • 
      • Large Discrepancy in Total AC Power After Simulation
      • By Robin Vincent, 22 hours ago
   7. Suggestions

      704

      posts

      • 
      • Feature Suggestion: Defining Bifacial Mismatch Factor by Module Type
      • By kjs55, 4 hours ago

4. Your questions about PVsystCLI

   1. How-to

      51

      posts

      • 
      • SFI parameters not coming after the simualtions
      • By dtarin, March 13
   2. Problems / Bugs

      46

      posts

      • 
      • LID and module degradtion
      • By Ana Sofía Lanza, January 16
   3. Suggestions

      1

      post

      • 
      • More tools to convert meteorological data
      • By shaoyiren, October 27, 2025