supervised by Prof. Carola Zwick, Prof. Judith Glaser and Felix Groll
Unfolding Shadow is a surface structure of adaptive solar cells that self-sufficiently respond to changes of the lighting conditions. Inspired by the spontaneous opening and closing movements of plants known as photonasties, a shape memory alloy animates sun-exposed modules to independently straighten up and close the covered surface. Shaded modules return to a relaxed resting state that allows the view and light to pass through. The smart, spontaneous realignment of the flexible PV foil not only increases the energy output but also enriches the space behind with a balanced microclimate and a dynamic interplay between light and shadow. The combination of efficient solar energy harvesting and acute shading, allows existing urban structures of any orientation and inclination to benefit from an additional level of use. This way solar energy harvesting can open up the urban space thorugh a new solar dynamic aesthetic.