Using the Blockchain as Notary Service for a Local Energy Market

Smart energy supply systems are increasingly in the spotlight to fight climate change. Decentralized local energy markets are one concept of these systems. However, these decentralized markets need a verification mechanism to secure the trading, for example through a notary service. Blockchain is a modem technology that enables the creation of audit-proof applications. In this paper, we analyze how well blockchain can be used as a notary service in a local energy market. We will provide a classification of notary services link them to different data storage methods and demonstrate their application in a local energy market.