Blockchains were developed as a technology used for transactions of Bitcoins (cryptocurrency). Blockchains have several features, decentralized transaction without third-parties, tolerance network, prevention of data manipulation and operational cost reduction. This technology is gaining attention in the world, and by adding extensions, improvements or new technologies, it is expected to be used not only in cryptocurrency and Fintech but also in the power and energy system field. This technical note explains the outline of the blockchain technology and its application to the field of power and energy system.
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