From February 27 to March 1, the annual meeting of the China-Croatian Sci-Tech Regular Exchange Project-Basic Research on Urban Flexible Multi-energy System was held smoothly in the West Main Building of Tsinghua University. The project was officially launched in January 2018, with the leading unit being the Department of Electrical Engineering & Applied Electronic Technology (EEA) Tsinghua University. The project leader is Prof. Zhang Ning, the project partner is the EEA, Zagreb University, Croatia, and the responsible person of the partner is Assistant Prof. Tomislav Capuder.

On the afternoon of February 27, the annual meeting of the Project was officially held at 3-102 West Main Building. At the meeting, the project leader and Deputy Prof. Zhang Ning, EEA, Tsinghua University, first made a report on the main research contents, existing achievements and future research arrangements of the project, and introduced the schedule of the meeting. Assistant Prof. Tomislav Capuder of Zagreb University in Croatia made a speech on behalf of Zagreb University, affirmed the research progress and achievements of the project, and made an academic report Models and Concepts for Seamless Integration of Electric Vehicles, introducing the latest research results of electric vehicle modeling from different perspectives.

Subsequently, Hrvoje Pandzic, associate professor in the Department of Electrical Engineering, Zagreb University, and doctoral students Mirna Grzanic and Alen Hrga, respectively mad three reports: the Policies and Models for Integration of Energy Storage, the Electricity Cost Sharing in An Energy Community under Dynamic Pricing and Uncertainty, and the Demystifying Distributed Ledger Technologies: Use Cases in Energy and Power Systems, presenting the latest research results.

On 1 March, the project team invited Assistant Prof. Tomislav Capuder of Zagreb University, Croatia, to visit the NIO HOUSE in Haidian District, Beijing. The project team visited NIO Motor Company's power exchange station, charging pile device and customer service center. In addition, the staff of NIO Automobile also introduced the latest developments of the electric vehicle industry to the project team. The project group had discussion on the role and significance of the electric vehicles in the urban multi-energy system.

On the afternoon of March 1, doctoral students in the group had extensive exchanges with Assistant Prof. Tomislav Capuder and his colleagues in the fields of high proportion renewable energy power system characteristics, multi-energy systems and power market. Subsequently, the two sides of the project discussed in depth the future exchange of visits plan and research content, determined the key time point of the project and the expected key technologies, and finally reached a consensus on the project research route.

The successful convening of this annual meeting marks that the project has achieved phased research results and laid a good foundation for further researches.