Development of Blockchain In Smart Grid Using IoT Jasrin Shiddike Department of CSE International Islamic University Chittagong, Bangladesh jasrinshiddike@gmail.com Afsana Ahmed Department of CSE International Islamic University Chittagong, Bangladesh afsana.ahmed1000@gmail.com Mohammad Farshid Department of CSE International Islamic University Chittagong, Bangladesh mdfar42@gmail.com Prapty Das Oaishe Department of CSE International Islamic University Chittagong, Bangladesh praptyoishe0@gmail.com Abstract—For Smart Grid management, people rely on Trusted Third Party (TTP) administration-based Centralized systems, which lack security, faith, immutability, and clarity. This paper proposes a Smart Grid management system based on Blockchain and IoT, taking advantage of the ’Ethereum server’ capabilities to solve these problems. To control access privileges, a smart contract is used, and a customized version of IPFS software is used to enforce the established access-control list. To secure Grid management, an application framework for a secure de- centralized smart Grid system is proposed using Ethereum and IoT. Every transaction was hashed using Ethereum Server, and identities were authenticated using Metamask to cryptograph- ically recognize account ownership in the Blockchain system. In the private Ethereum network, a gas consumption-based outcome analysis is performed. It achieves transparency, security- regulated access, and process quality, all of which indicate that this activity is more effective. Index Terms—Blockchain, Internet of Things (IoT), Smart grid, Smart contracts I. I NTRODUCTION The Internet of Things is a network that connects all of our everyday hardware and devices. This simplifies our lives by allowing us more control over such devices. Devices can also make their own decisions based on network data that has been processed. These devices collect data from their surroundings and send it over the internet. The information is processed, analyzed, and prepared for use in making decisions. This technique can lower expenses and change business processes and models, making our human existence simpler, easier, and more rewarding. IoT offers numerous real-world applications, demonstrating the technology’s capabilities and opportunities. Businesses and industries can also benefit from IoT devices. It is critical to keep accurate energy statistics in order to monitor anomalous behavior. When a device develops a problem, it is critical to ensure that the device is properly treated. That is why we require a security system in which no third parties can interfere or alter our system. So the major focus of our system is to secure the monitoring system and regulate it using a blockchain network that only users can access. We can use blockchain to solve such problems. Blockchain is a solid technology that is safer and more secure than traditional methods. Cryptocurrencies are the most well-known aspect of blockchain, and much of its successful research is focused on them. For the first time, blockchain was widely employed in Bitcoin [15]. However, many people soon recognized that this technology has a lot more to offer. Blockchain is a decentralized, immutable ledger. Its natural state provides the safest network. IoT has used disruptive technologies like big data and cloud computing to overcome its limits since its inception, and we believe blockchain will be the next one [14]. The smart grid system is used to maintain the integrity and validity of Blockchain-based Grid systems in order to eliminate third-party dependency. Our work began with a few particular objectives to guarantee that it was heading in the right direction. The following are the main goals of our suggested secure Grid Management system: i)To use Blockchain to assure Confidentiality, Integrity, and Authentica- tion in Smart Grid administration. ii) Third-party dependency is removed by utilizing Blockchain to make the system secure and entirely decentralized. iii) To create a system, which will combine IoT and Blockchain technologies. The main contribution of this research is to use Blockchain to eliminate Trusted Third Party (TTP) intervention depen- dency, improve security, and reduce the cost of quitting the Grid system. IoT and Blockchain technologies are used to create threadless/unauthorized access and increase the security of a Smart Grid Management system in this study. The rest of the article is organized as follows. Section II describes the literature review, the proposed method is described in Section III. Section IV concludes the system using results as well as an implementation discussion. Finally, Section V concludes the work with future work.