solar north

[davelaw]

does anyone know which north (ie MM, MGA or TN) to set the project north to in order for the solar shadows to be correct?

[Strawbale23 · Accepted solution]

True North , the north pole

[davelaw]

Thanks, much appreciated 👍

[Strawbale23]

No problem 🙂. Solar shading is determined by the rotation and tilt of the Earth, on its axis, which runs through the N and S poles.

Its a shame, we used to have a specific sub forum for these environmental discussions....