Blender version: 4.2 (LTS) and +
Content:
three geometry nodes setups for laying solar panels:
Note: maps are allready packed within blender file
How to use it:
see scene examples. Instances and geometry are set for 10x10 meters squares.
Note: If you have a slow computer, depending on the size of the solar field, you might avoid enabling instances on screen and keep them for render only.