Demand response of users considering shared energy storage under blockchain architecture

Abstract

The power system will gradually step into the era of high percentage of renewable energy， and the shared energy storage can improve the power system resilience and thus effectively consume renewable energy. Since self-built energy storage of users may result in unnecessary sunk costs due to excess capacity and the business model of centralized investment in energy storage user sharing by operators has problems such as high investment costs， centralized operation and non-transparency， a distributed energy storage peer-to-peer transaction model based on blockchain smart contracts is proposed. On the basis of energy storage sharing， a load optimization model of users under the demand response mechanism is established. Finally， a typical daily electric load in spring， summer， autumn and winter in a region of the United States is simulated as an example. The results show that the charging and discharging decision model based on the rational use of shared energy storage can help users to smooth the load curve and realize “low storage and high discharge”， and the shared energy storage model based on blockchain architecture can bring economic benefits to users.

Keywords

• blockchain
• smart contract
• shared energy storage
• demand response