"Solar Gate": Sustainable shading through inspiration from nature

21.01.2025

Source: University of Stuttgart

Researchers at the Universities of Stuttgart and Freiburg have developed "Solar Gate", the world's first weather-dependent, adaptive shading system that works without electrical energy. Instead, it uses natural materials and bio-inspired designs.

The system is based on cellulose, a renewable material that swells and shrinks when exposed to moisture. Inspired by the movement mechanisms of pine cones, the researchers have recreated this property using 4D printing technology. The printed elements open or close depending on the weather - without any mechanical components or energy supply.

Solar Gate" was tested over the course of a year at the livMatS Biomimetic Shell in Freiburg. There it regulates the room temperature: In summer it reduces solar radiation, in winter it lets in light.

"Solar Gate" shows how bio-based materials and additive manufacturing can support sustainable architecture. It is an energy self-sufficient system that is not only efficient but also aesthetically pleasing.

For more high-resolution press photos, please contact mail@icd.uni-stuttgart.de

Project video Solar Gate

Further information on this project can be found on the website of the University of Stuttgart.