Solar thermal energy plant

Abstract

A solar thermal energy system with a plurality of reflectors (11) which reflect incident sunlight (12) onto a receiver (20) mounted in an elevated manner, the receiver (20) having a receiver pipe (22) which is overlapped by a receiver cover (21), and a measuring robot (30) being disposed on the receiver cover (21) for measuring the beam density distribution of the sunlight (13) reflected by the reflectors (11) in the area of the receiver pipe (22), characterized in that the measuring robot (30) has a chassis (34) by means of which it is placed on the receiver cover (21), and in that the measuring robot (30) can be moved in the longitudinal direction of the receiver cover (21) by means of the chassis (34).