TY - JOUR TI - Modeling of energy and environmental costs for sustainability of urban areas AU - Aranda J A AU - Zabalza I AU - Scarpellini S JN - Thermal Science PY - 2005 VL - 9 IS - 3 SP - 25 EP - 37 PT - Article AB - The principal aim of this paper is to present the results achieved by the practical application of energy modeling to urban areas based on two inter related concepts: energy costs and environmental costs. The analysis has-been carried out in three standard Municipalities located in a Mediterranean Zone (Spain) selected based on their different size and socio-economic activities in order to facilitate the extrapolation of results. Energy flows of the chosen areas have been quantified and classified. In addition, energy and environmental costs have been agree gated for each productive sector. Using the methodology proposed in this paper innovative solutions could be specially de signed for different areas in order to ensure the sustainable development of urban areas. Finally, the basis for changing the present development model in the Municipalities set out by means of the application of sustainability principles set in Agenda 21.