This paper provides a comprehensive review of the evolution and contemporary trends in electrical distribution networks, focusing on smart grids in the context of Industry 4.0. It highlights the transition towards sustainable energy sources and the integration of renewables, emphasizing key trends such as economic operation, distributed energy resources, and the significance of photovoltaic solar energy. The paper is structured into seven sections, covering smart electrical network architecture, sustainable technology progression, energy efficiency, carbon-emission reduction challenges, future perspectives, and concluding insights. Each section delves into specific layers and aspects, including data management, electrical infrastructure, automation, and consumer interaction. The role of smart meters and their impact on energy management is explored, providing a detailed overview of the current state and future directions of electrical distribution networks. The paper also discusses the integration of renewable energy sources, the advancement of sustainable technology, and the challenges and opportunities in energy storage and management systems.This paper provides a comprehensive review of the evolution and contemporary trends in electrical distribution networks, focusing on smart grids in the context of Industry 4.0. It highlights the transition towards sustainable energy sources and the integration of renewables, emphasizing key trends such as economic operation, distributed energy resources, and the significance of photovoltaic solar energy. The paper is structured into seven sections, covering smart electrical network architecture, sustainable technology progression, energy efficiency, carbon-emission reduction challenges, future perspectives, and concluding insights. Each section delves into specific layers and aspects, including data management, electrical infrastructure, automation, and consumer interaction. The role of smart meters and their impact on energy management is explored, providing a detailed overview of the current state and future directions of electrical distribution networks. The paper also discusses the integration of renewable energy sources, the advancement of sustainable technology, and the challenges and opportunities in energy storage and management systems.