Tata Power Solar — 3.5KW roof-top installation

The installation of the panels are on concrete ballast. The Ballasts are having the following problems and hence the Panels are not tightened with nuts (they are kept loose).

1. The surface of the ballasts are not even and flat. In most of the cases it is inclined and if we tight it with nut it will get bend.
2. There are cracks on almost all ballasts.

Ballasts are supposed to last long (as the panels are).

Please let me share the images of the installation so that you can evaluate the gravity of the problem I am trying to explain.

Request you to solve the issue at the earliest.