EI is also known as “Enernet”, which is an Internet of energy (IOE). EI is an integration of DRERs, DESDs, real-time energy monitoring, information sharing, real-time pricing, and energy transactions. EI aims to transform energy production, storage, and transport into an. Energy Internet is a concept proposed to harness, control, and manage energy resources effectively, with the help of information and communication technology. In order to manage ef ciently the energy supply and demand in the power grid, energy routers are. umption resulted climate change urges a transformation of the energy sector. The ot er shore of this revolution is called Energy. Facing the comprehensive complex challenges of the Energy Internet practice, such as the imperfect design of the technical structure system, incomplete standard system and synergetic control between multi-energy supplement, this paper first explains the importance of building an energy internet. This work was supported in part by the Academy of Finland EE-IoT Project under Grant 319009, in part by the FIREMAN Consortium CHIST-ERA under Grant 326270, and in part by the EnergyNet Research Fellowship under Grant 321265 and Grant 328869. ABSTRACT The climate change crisis, exacerbated by the.