flexible freeform
solar textile
Weaving solar energy into the fabric of our cities
Designing with the sun
Cities are warming fast. Public spaces need cooling, and our energy transition needs to be tangible, ecological, and culturally resonant. heliotex shows how solar design can address climate challenges while creating places that feel inviting, meaningful, and alive.
heliotex close up
heliotex is an innovative solar textile that combines shading and energy generation in one lightweight, flexible material. Woven with organic photovoltaic cells, it offers architects and designers a new medium for temporary, lightweight constructions like pavilions and festival tents as well as permanent architecture like textile façades, shade structures and canopies. Beyond function, it brings atmosphere and cultural value to the built environment.
Design entry for World Expo Osaka Pavilion design by Overtreders W
Cooling cities
powering change
Developed by Studio Pauline van Dongen in collaboration with Tentech, heliotex is applied at architectural scale for the first time in the Umbra Pavilion. Rising like a floating canopy, it offers shade by day and glows with stored solar energy by night—demonstrating how design can integrate renewable energy seamlessly into everyday life.
Umbra Pavilion
From concept
to construction
heliotex opens new possibilities for cities, festivals, and architects seeking climate-adaptive design. If you are ready to explore how solar textiles can transform your space or project, connect with us and be part of shaping environments that are both resilient and radiant.
