Peer-to-Peer (P2P) Energy Trading Prototype Implementation with Private Ethereum Blockchain and WebSocket

Abstract

Peer-to-Peer (P2P) Energy Trading Prototype Implementation is presented in this paper. This study aims to design a prototype and implement it with a P2P energy trading system, private Ethereum blockchain, and WebSocket. A Raspberry Pi 3 Model B (Pi3B) hosts the WebSocket server for creating the duplex communication including the current sensors sensing and data transaction transmitting. The personal computer hosts the user interface and private Ethereum blockchain server. The private Ethereum blockchain is used to deploy smart contracts and store transaction data. ESP32-WROOM-32 micro-controllers are used to operate the peer circuits including the relays and current sensors. The prototype results show the operation of the prototype by performing the energy transfer simulation with different types of consumption loads in the determined time.