Concentrated solar power plant comprising: - a solar receiver ; - a set of reflectors each having a predefined position so that the set of reflectors reflects an incident solar flux (FS) to the solar receiver ; each reflector comprising a solar tracker , the incident solar flux (FS) comprising a spectrum (So) ; - control means configured to assign a setpoint position to each solar tracker in which the corresponding reflector is designed to present the corresponding predefined position; the solar power plant being characterised in that it comprises: - transmitting means modifying the spectrum (So) of the incident solar flux (FS) so as to emit a modified spectrum defining the identification signal (S id ) of a reflector chosen from the set of reflectors , the transmitting means comprising an element absorbing a part of the spectrum (So) of the incident solar flux (FS) so as to emit an absorption spectrum defining the identification signal (S id ) or comprising an element reflecting a part of the spectrum (So) of the incident solar flux (FS) so as to emit a reflection spectrum defining the identification signal (S id ), or transmitting means configured so that the identification signal (S id ) is a visual signature for example with rhythmic modulations of Morse code type or transmitting means configured so that the identification signal (S id ) comprises mechanical vibrations ; - receiving means arranged to receive the identification signal (S id ) and configured to deliver a detection signal to the control means when the chosen reflector presents the corresponding predefined position; and in that the control means are configured to adjust the setpoint position assigned to the solar tracker of the chosen reflector until the detection signal is delivered to the control means by the receiving means . - a solar receiver ; - a set of reflectors each having a predefined position so that the set of reflectors reflects an incident solar flux (FS) to the solar receiver ; each reflector comprising a solar tracker , the incident solar flux (FS) comprising a spectrum (So) ; - control means configured to assign a setpoint position to each solar tracker in which the corresponding reflector is designed to present the corresponding predefined position; - transmitting means modifying the spectrum (So) of the incident solar flux (FS) so as to emit a modified spectrum defining the identification signal (S id ) of a reflector chosen from the set of reflectors , the transmitting means comprising an element absorbing a part of the spectrum (So) of the incident solar flux (FS) so as to emit an absorption spectrum defining the identification signal (S id ) or comprising an element reflecting a part of the spectrum (So) of the incident solar flux (FS) so as to emit a reflection spectrum defining the identification signal (S id ), or transmitting means configured so that the identification signal (S id ) is a visual signature for example with rhythmic modulations of Morse code type or transmitting means configured so that the identification signal (S id ) comprises mechanical vibrations ; - receiving means arranged to receive the identification signal (S id ) and configured to deliver a detection signal to the control means when the chosen reflector presents the corresponding predefined position; <EOS>