Hi All, I'm located in the southern hemisphere. It's my understanding PV Syst uses the following rules for Azimuth: In northern hemisphere, the plane azimuth is defined as the angle between south and collector plane. This angle is taken as negative toward east, i.e. goes in the antitrigonometric direction. Example: south plane, azimuth = 0, east plane, azimuth = -90°. In southern hemisphere, the plane azimuth is defined as the angle between north and collector plane. This angle is taken as negative toward east, i.e. goes in the trigonometric direction. For example for my location in the southern hemisphere: Facing North is 180 Facing South is 0 Facing East is -90 Facing West is 90 That's correct right ? Many thx Kind regards