Both of the RISM models show significant solvation energy variations when changing the electrolyte concentrations. The main contribution difference coming from the excess chemical potential term µ ex calculated by RISM. This suggests that RISM predicts significant destabilization of the water structure at the interface for high electrolyte concentrations. Interestingly, both CANDLE and the RISM (TIP5P) models show similar trends close to the interface, with the formation of negatively charged cavities directly above the platinum atoms. The spaces between these cavities serving as wells for positive charge accumulation.