Abstract:Regional energy transactions mainly provide sales and purchase transaction contracts through a centralized transaction service platform, and cooperate with the grid for power supply and transmission. There are problems such as high service costs, low transaction efficiency, and lack of security guarantees for user privacy. This paper analyzes the characteristics of regional energy transaction entities and the scope of application of different types of blockchains, proposes a regional energy transaction architecture based on master-slave blockchain technology, and establishes a master-slave blockchain model suitable for regional energy transactions. The model has a high degree of security, and the construction of the architecture platform is designed in detail. Finally, the feasibility and security of the transaction architecture and model are proved through the simulation platform test, which provides a new way of thinking for regional energy transactions.