Within the present context of the Dutch Sustainable Building Practice it is hard for the different involved building design disciplines to give a good answer to sustainability. Especially this is the case for the application solar energy either in passive or active form. As traditional methods did not work out adequately a new approach within the building industry is proposed: Integral Design, a "thinking in levels" approach based on the use Morphological charts. Since year 2001 'integral approach' has been propagated within Dutch building design practice, through continuously developing 'learning by doing' workshops by the Royal Institute of Dutch Architects (BNA) and Technische Universiteit Eindhoven. The workshops renewable energy for mu...