Basic Structure of the Energy Internet

The Energy Internet is a distributed, multi-layered network integrating energy generation, storage, and consumption with advanced communication and control systems, enabling real-time energy exchange among prosumers.

Core Architecture

The Energy Internet (EI) is designed as a dynamic, distributed network that integrates various energy sources, storage devices, and controllable loads into a flexible and efficient system. It builds upon the smart grid concept but extends it by enabling bidirectional energy and information flows, allowing consumers to act as prosumers who both consume and supply energy . The architecture typically includes:

• Distributed Energy Resources (DERs): Small-scale renewable energy systems such as solar panels, wind turbines, and biomass units.
• Energy Storage Devices (ESDs): Batteries and other storage systems that buffer energy and support grid stability.
• Controllable Loads: Smart appliances, electric vehicles, and industrial loads that can adjust consumption based on real-time signals.
• Communication Infrastructure: IoT-enabled devices and energy routers that manage energy flows and data exchange .

Network Layers

The Energy Internet is structured similarly to the traditional Internet, with hierarchical layers:

• Energy LAN (Local Area Network): A cluster of energy resources in proximity, enabling peer-to-peer (P2P) energy trading and interaction with the main grid. Microgrids are a special form of Energy LAN that can operate independently .
• Energy WAN (Wide Area Network): Interconnects multiple Energy LANs over a larger geographic area, analogous to the Internet's WAN. This layer often corresponds to the high-voltage transmission grid and may include other energy carriers like natural gas .
• Virtual Power Plants (VPPs): Aggregations of Energy LANs or microgrids that function as a single controllable entity, facilitating energy management and market participation .

Key Components

• Energy Internet Card: Hardware/software modules assigned unique MAC addresses to identify participants and manage energy transactions automatically. They parse Blocks of Energy Exchange (BEE), which combine energy delivery and associated data .
• Energy Routers (ERs): Devices that route energy flows similarly to data packets in communication networks, ensuring efficient distribution and load balancing .
• Energy Internet Service Providers (ISPs): Evolved system operators who manage centralized resources, dispatch energy, and provide reliable services while decoupling user behavior from system control .
• Database and Storage Systems: Energy storage systems act like cloud databases, storing BEEs and tracking energy trading records, green certificates, and carbon credits .

Operational Principles

The Energy Internet operates on real-time, bidirectional flows of energy, information, and financial transactions. Key operational mechanisms include:

• Plug-and-play integration of new energy resources.
• Automated energy trading using blockchain, smart contracts, and automatic billing.
• Dynamic load management through IoT-enabled devices.
• Energy prosumer participation, allowing local energy markets and clusters to optimize energy utilization .

Summary

In essence, the Energy Internet is a multi-layered, decentralized energy network that combines distributed generation, storage, and smart consumption with advanced communication and control technologies. Its structure mirrors the Internet, with local and wide-area networks, routers, and service providers, enabling efficient, flexible, and sustainable energy management while empowering prosumers and supporting renewable integration .