Summary

Due to the rapid spread of distributed energy resources, the demand for intermediary trading (i.e., brokerage) of surplus electricity for electricity prosumers in electricity markets is significantly increasing. To support the transparency of brokerage transactions in the trading process, various technologies such as blockchain can be applied to applications that require mutual trust between users. Thus, Recommendation ITU-T Y.2073 provides a framework of electricity brokerage for distributed energy resources taking into account the blockchain technology for trust provisioning in electricity markets. After introducing key characteristics, core technologies and service scenarios for electricity brokerage with the necessity of the blockchain technology to ensure trust, this Recommendation mainly presents requirements, architecture overview specifying related interfaces and functional blocks for the blockchain enabled electricity brokerage.