By choosing this topic, one of the most important measures is achieving how to enhance energy efficiency in the green economy using artificial intelligence through concrete application in the energy sector. The aim of the research is to make an overview of why a dual transition - digital and green - is necessary in order to improve energy efficiency. As a contribution to the selected goal of the work, we will use, for example, Siemens research on how artificial intelligence and digitalization drive clean energy. As an aid in order to better research, we will use effectively and examples from some EU economies - Spain. Specifically, the experience of closing 351 Third International Scientific Conference coal power plants, the expansion of wind farms and solar farms, as well as ambitious plans for hydrogen and energy storage, are part of the new energy picture of the country we have presented. These are essentially sets of specific questions related to the topic being addressed, and the answers obtained will be the result of this work.