Recently, on June 16-th and 17-th, 2021 researchers of the Institute of Power Engineering of the Ministry of Education, Culture and Research took part at the 9-th edition of the Conference „Modern Power System 2021”. In the frame of three working Sections from the side of the Institute five scientific papers were presented, dedicated to the most relevant topics for the context of the development of energy domain. In the preparation work for this participation from the staff of the Institute 16 researchers have been engaged. Also in the list of co-authors there is one foreign colleague...