Abstract: The present invention relates to a solar co-generation/tri-generation system having a thermal insulating coating structure (1) comprising a plurality of support beams (3), parallel each other, that can be fixed to a support structure; a support layer (5) provided on said support beams (3); a plurality of solar concentration linear means (2), provided on said support layer (5) in correspondence of said plurality of support beams (3) and that can be connected with a power generation system; and an insulating layer (7) coupled with said support layer (5).