Abstract: As more and more distributed energy resources （DER） are connected to the distribution systems through microgrid, the renewable energies trading in microgrid based on peer-to-peer （P2P） transaction can effectively improve the benefit of customers and promote the investment of renewable energies. This paper describes the application scenarios of transactive energy （TE） system in community microgrid, and proposes a framework of P2P transaction among the consumers and prosumers （i.e. customers with DER） in microgrid. Customers can trade their energy production or demand in the P2P market in a way of pay-as-bid （PAB）, create and save smart contracts in the P2P network and execute them automatically. Simulation results of a test microgrid shows that all types of customers in community microgrid can achieve cost saving through P2P transaction.

Key words: microgrid, transactive energy, prosumer, storage, peer-to-peer transaction