The environmental problems and the ecological crisis demonstrate that time is ripe for a wide exploitation of Renewable Energies in architecture and urban planning: These could be employed within infinite functions as climatization, ventilation, illumination, distribution and supply within infrastructural and service networks according to a scalar articulation of the different areas, ranging from the district, to the city and territory. They could also be involved in a specialized and diversified manner according to the different energy sources as sun, wind, water and the energetic transformation of the agricultural and forestal productions as well as of the residues of organic and urban wastes. The holistic and organic structuration of our philosophy has brought us to a reconsideration of the development and growth mechanism of architecture, of the city and territory according to self sufficient and autonomous entities. Sophisticated technologies and experimentations have allowed us to establish an application methodology based upon design parameters according to decentralized functional sectors relative to the city and the territory thus constituting a strategy of "ecological and energetic islands".