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Blockchain in Smart Grids: A Review on Different Use Cases

Birla Institute of Technology and Science, Pilani 333031, India
Federal University of Piauí, Teresina-PI 64049-550, Brazil
Instituto de Telecomunicações, 1049-001 Lisboa, Portugal
International Institute of Photonics and Optoinformatics, ITMO University, St. Petersburg 197101, Russia
Author to whom correspondence should be addressed.
Sensors 2019, 19(22), 4862;
Received: 30 September 2019 / Revised: 3 November 2019 / Accepted: 4 November 2019 / Published: 8 November 2019
(This article belongs to the Special Issue Surveys of Sensor Networks and Sensor Systems Deployments)
With the integration of Wireless Sensor Networks and the Internet of Things, the smart grid is being projected as a solution for the challenges regarding electricity supply in the future. However, security and privacy issues in the consumption and trading of electricity data pose serious challenges in the adoption of the smart grid. To address these challenges, blockchain technology is being researched for applicability in the smart grid. In this paper, important application areas of blockchain in the smart grid are discussed. One use case of each area is discussed in detail, suggesting a suitable blockchain architecture, a sample block structure and the potential blockchain technicalities employed in it. The blockchain can be used for peer-to-peer energy trading, where a credit-based payment scheme can enhance the energy trading process. Efficient data aggregation schemes based on the blockchain technology can be used to overcome the challenges related to privacy and security in the grid. Energy distribution systems can also use blockchain to remotely control energy flow to a particular area by monitoring the usage statistics of that area. Further, blockchain-based frameworks can also help in the diagnosis and maintenance of smart grid equipment. We also discuss several commercial implementations of blockchain in the smart grid. Finally, various challenges to be addressed for integrating these two technologies are discussed. View Full-Text
Keywords: blockchain; smart grid; Internet of Things; security and privacy; Peer-to-Peer trading; Wireless Sensor Networks blockchain; smart grid; Internet of Things; security and privacy; Peer-to-Peer trading; Wireless Sensor Networks
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Alladi, T.; Chamola, V.; Rodrigues, J.J.P.C.; Kozlov, S.A. Blockchain in Smart Grids: A Review on Different Use Cases. Sensors 2019, 19, 4862.

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