Today, the service life of inverters in photovoltaic systems is far shorter than that of the modules. As part of the PV4Life research project, the Fraunhofer Institute for Energy Economics and Energy System Technology IEE is now working with partners to develop models that map the individual ageing of power converters. This can be used to derive customized, AI-supported operating strategies that promise a longer service life without compromising the performance of the devices.