Surface tilt of building components

[SomadSahoo]

for pvlib, wall tilt considered is 90 degree, whereas in city2tabula, it is 0 degree.
What can be done is I only extract azimuth value from the city2tabula database for wall and floors.

[jravani]

for pvlib, wall tilt considered is 90 degree, whereas in city2tabula, it is 0 degree. What can be done is I only extract azimuth value from the city2tabula database for wall and floors.

For your current workflow, you can still use the azimuth values from the City2TABULA database directly for walls and floors. To convert the City2TABULA tilt to the convention expected by pvlib, you can subtract the City2TABULA value from 90°.

I agree that this can be confusing, and I plan to improve the tilt definition in a future update so it aligns better with more common conventions and use cases.