As the world increasingly adopts renewable energy, the importance of smart grids grows. Integrating renewable sources into the current grid presents technical and economic challenges. Blockchain technology offers a promising solution by enabling decentralized energy trading, allowing efficient exchanges between producers and consumers. This paper proposes a detailed framework for integrating blockchain into the smart grid. The framework includes developing a blockchain-based platform for energy trading, creating smart contracts to manage and automate transactions, and incorporating IoT devices for energy data collection and sharing. By leveraging blockchain's transparency, security, and decentralization, our proposed system aims to address inefficiencies and foster a more resilient energy infrastructure. This approach could enhance the sustainability and reliability of energy distribution, supporting the transition to renewable sources. We believe our framework has the potential to significantly improve the efficiency and sustainability of the smart grid, paving the way for a more robust and adaptive energy system capable of meeting future demands.