The paper investigates the role of digital copies of physical objects (digital twins) in the development of the modern industrial revolution. The author determines that the technologies and research of digital twins (DT) have been subjected to critical and systematic analysis from a special point of view of application in the manufacturing industry and energy. Even taking into account the fact that the manufacturing and energy industries are the flagman of many digital technologies, reports and publications on the application of energy DT technologies and research turned out to be relatively few in comparison with the manufacturing and construction sectors.