While designing the control center building of Turkey's largest solar energy plant, the concept of "dialogue with the Earth" emerged as a reflection. Illumination of this structure, where sustainability takes precedence, serves as an extension of its main theme. The façade of the building extends like a continuation of the sky, and when illuminated, the same depiction continues along its length. The illumination of the structure comes to life with Fiberli luminaire, designed by the Ukon lighting design office