The energy market is entering the transitional period, and various types of energy markets such as solar energy will be formed beyond oil and gas. Correspondingly, energy prosumers that individuals and institutions produce and trade surplus electricity will become more widespread. Using the block chain, it guarantees the immutability and transparency of energy transactions, generates ERC20 tokens based on smart contracts, and transactions are automatically executed without third party intervention and can be extended to various transaction conditions. In the transaction, the energy is transferred using the Energy Storage System(ESS) which the seller and the buyer belong, and payment is made by transferring the token through a transaction. Based on this information, this paper suggests proposes a peer-to-peer (P2P) system that can freely trade the produced energy.
