Four talks were delivered on China-East Europe conference in Harbin Institute of Technology on 17-20 May 2024. There were 500 participants from 13 countries. Professor Sidorov chaired the session on advanced electric drive storage technologies. Professors from Russia, China, Moldova and Croatia attended the session. Professor Sidorov delivered the invited talk on storage math models. Professor Chistyakova presented results on DAE equations theory. Professor Dreglea introduced the new theory of nonclassic initial conditions for differential operator equations. Professor Noeiaghdam delivered his talk on energy demand–supply nonlinear dynamical model.