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Introduction

In PVsyst you can define and simulate projects without defining a shading scene. Doing so will require you to define your fields orientation in the "Orientation" window, accessible through the project main dialog.

But when you choose to define a shading scene, you have to match two things (with a tolerance):

  • the orientations defined in the variant "Orientations" part,
  • the active PV area and number of PV modules defined in the "System" part by the sub-arrays for each orientation.

If one of these two elements is not matching and if the difference is not within the accepted tolerance, PVsyst will not be able to run the simulation.

When creating new PV tables from the 3D scene, you can manually select an existing orientation or create a new one. When importing PV tables from an external source, PVsyst will try to identify orientations automatically from your scene. But the "Orientation management tool" allows you to manually manage your orientations, by grouping PV fields the way you want. It also gives you a lot of information about the current and expected PV areas and orientations in order to match the variant definition.

In the following sections you'll also find three use cases :