But a youtuber told me a shade of an ivy leaf on a solar car will bring the whole array to a trickle, so any installation should be spotless and free from shadows. Any truth to this, since the tiles are going to be stacked and maybe under shade partially?
The are that's going to covered by the next tile when stacked is well known in advance. Obviously solar cells are not installed in this area. As for the shading from leaves or something, typically diodes are installed in solar panels to prevent current flow into the shaded parts. This helps mitigate the power loss from shades.
