Boundaries
In PVFARM equipment is added to the scene via Boundaries, you will have boundaries that represent buildable area, called "inclusion zones" and boundaries that represent non buildable area or "exclusion zones."
Importing a KMZ/KML from Google Earth
Draw boundaries in Google Earth according to the real view of the site
Export to KMZ/KML file
Drag & drop KML/KMZ file in the PVFARM 3D model space or use the Import menu
Make sure the boundaries are added to your project