Fengshuo Hao is a Research Assistant at RWTH Aachen University, where he works on digital twins, semantic interoperability, and AI-enabled data integration for smart energy systems. His work focuses on connecting heterogeneous energy data, models, and services through interoperable digital architectures and ontology-based approaches. He is actively involved in European research projects such as ORION and PVSmile, contributing to the development of data-driven solutions that support the energy transition, from interoperable platforms to intelligent energy applications.