Scary Photo of the Month – September

On this system, the installer stacked ballast so high that it shades the modules at noon of each day. Why would anyone use a hollow block for ballast?
Module interrow Shading

At the same site but on a different roof… There was ample space on the roof, but the installer placed the modules right up against the parapet wall where it would it would be heavily shaded in the afternoons year round.  Module Shading 2
Module shading 1