Depending on the flat surface of the building

[Joj]

Depending on the flat surface of the building, it is possible to have up to 100 PV panels covering the whole roof area. Chassis cost range 150$/panel.

 

[tedmc]

Depending on the flat surface of the building, it is possible to have up to 100 PV panels covering the whole roof area. Chassis cost range 150$/panel.

Depending on the flatness of the surface of the roof...
What do you mean by "chassis cost range"?

 

[Tdol]

Can't the PV panels go on an angled roof?

 

[Tarheel]

$150 is not a range. It's a price. (Please note the proper position of the dollar sign.)

 

[tedmc]

Can't the PV panels go on an angled roof?

Of course they can. Surfaces can be sloping and flat. I think Joj means the evenness of the surface. The presence of protrusions, drop in levels, etc would hinder installation.