Solar energy, understood as infrastructure, was born with the idea of making it functional and at the service of the usability and operational use of buildings, in the sense most commonly used in both technical and non-technical circles. Solar energy as an infrastructural facility is equated with a heating or water system. Until now, it has been a technological installation. However, if we take a closer look at the reasoning behind this, we can see that solar energy has become part of the building fabric as a sustainable alternative, and then it has become obligatory and, today, increasingly indispensable. This is a great opportunity for architectural, urban and landscape design, but let us not forget that when we use and transform this technological device in architecture, solar is synonymous with happiness and beauty.