A Distributed Point-to-Point Energy Trading System Based on Blockchain Privacy Protection

Centralized traditional electricity trading systems often face many problems such as high maintenance costs, low transaction information transparency, and untimely clearing of funds when faced with massive, high-frequency, and small-value transactions of distributed energy [1]. In response to these problems, many scholars have proposed distributing energy trading schemes based on blockchain technology by virtue of its excellent features such as distributed storage, non-tampering, traceability, and credibility. However, ordinary blockchains such as early Bitcoin, with their open and transparent on-chain transactions, can easily make the privacy and security of data from multiple parties challenging. In response to this problem, this paper proposes a distributed point-to-point energy transaction system based on ChainSQL blockchain privacy protection, and proposes a high-security and strong privacy blockchain transaction system that encrypts transaction data and has data authority management. Making full use of smart contract technology, our scheme realizes automatic settlement, traceability, and auditability of electricity transaction data.