The Solar Decathlon Europe is an international collegiate solar house design and construction competition. Virginia Tech's Lumenhaus received first place for its use of the eclipsis system—an innovative light filtering façade technology—and an open floor plan.
The Stuttgart University of Applied Sciences received third place for their extreme weatherconditions design approach using ventilation towers, evaporative cooling, and thermal mass in the interior.
Other house designs incorporated innovative shapes and materials,such as the Instituto de Arquitectura Avanzada de Cataluña's Fablabhouse.
Second place was awarded to the University of Applied Sciences Rosenheim's Ikaros house, which incorporated a controlled shading system and a modular plan to allow expansion.