The digital revolution taking place in the energy and utility sectors is known as Energy 4.0, which involves the internet of things, big data, cloud computing, machine learning, and data analytics, automation, interconnectivity, etc. Therefore, modern energy systems management should exploit a large volume of data acquired from various measurement devices for extensive monitoring and control of the systems to achieve efficiency and sustainability goals in the energy sector. The knowledge of the mentioned technologies helps develop intelligent energy ecosystems for buildings, factories, and smart grids with the incorporation of distributed energy resources.