Title: Tidal disruption events on cosmological scales Abstract: The LSST and eROSITA will detect hundreds of TDEs but, to date, it is still debated how the TDE rate depends on the properties of galaxies, depends on redshift etc... Consequences are tremendous: BHs could grow by a significant amount accreting stars, and subsequent feedback could affect the entire galaxy. In order to study this, I developed a unique subgrid model to take into account TDEs in cosmological simulations and study their origin and consequences. In this talk I will present this new model, and detail the results of a cosmological zoom simulation, particularly focusing on the effects of galaxy mergers on the TDE rate.