Decentralised modular power plants in the medium performance class are gaining importance. Another alternative that is becoming more relevant again are gas engines. Gas engines play an important role when it comes to interlinking decentralised power plants with generation facilities and energy storage systems (virtual power plant). The focus is on the modelling and simulation of systems, plants and components (digital twin), sensor technology and data analysis as well as smart control and operational optimisation processes. This will further increase load and fuel flexibility.