In addition, it would be helpful to investigate if the energy landscape in the FCP complex changes in the transition from the light-harvesting to the photoprotective state since the electrostatic potential at the sites of the Chl-c molecules might change leading to different excitation energies. Thus, future investigations of the available cryo-EM structure of the PSII supercomplex belonging to the diatom C. gracilis 9 could provide valuable insight. In conclusion, we would like to emphasize that the present investigation is the first attempt for a multiscale approach to be employed for the site energies of an FCP complex and can serve as a reference to model the excitonic properties of similar complexes in future studies.