Abstract
The increasing integration of renewable energy sources and advanced metering infrastructure in smart grids necessitates secure and efficient data sharing among stakeholders. This paper proposes a blockchain-based secure data sharing framework tailored for smart grids, addressing privacy, integrity, and scalability challenges. The framework employs a hybrid architecture combining permissioned blockchain for transaction validation and off-chain storage for large-scale data, utilizing smart contracts for access control and auditability. We evaluate the framework through simulation experiments using Hyperledger Fabric, measuring throughput, latency, and resource consumption under varying transaction loads. Results demonstrate that the proposed framework achieves a throughput of 1,200 transactions per second with an average latency of 2.5 seconds, while maintaining data confidentiality through encryption and access policies. Comparative analysis with existing schemes shows improvements in security and efficiency. The framework provides a viable solution for secure data sharing in smart grid ecosystems, supporting real-time energy trading, demand response, and grid monitoring.
Keywords
Blockchain, Smart Grid, Data Sharing, Security, Privacy, Hyperledger Fabric, Smart Contracts, Energy Trading