The energy consumption for thermal conditioning of urban dwellings located in a zone of arid mesothermal climate is studied to identify its incidence in the household energy structure. The study’s object is the city of San Juan (Argentina), located in the South American arid diagonal. The hypothetical consumption of natural/liquefied gas and electricity, per dwelling unit is estimated processing relieved data and calculating the bioclimatic design strategies, if it had been bioclimatically designed. It is concluded that the use of fossil energy for domestic thermal conditioning, constitutes about half of electricity and gas consumption in winter and 60% of electricity in the summer. If the housing had been bioclimatically designed, savings in electricity consumption would be 43% in winter and 46% in summer. For gas, the savings would be 81% in winter and 92% in summer.Fil: Kurban, Alejandra Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina. Universidad Nacional de San Juan. Facultad de Arquitectura, Urbanismo y Diseño. Instituto de Estudios en Arquitectura Ambiental; ArgentinaFil: Cunsulo, Mario Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina. Universidad Nacional de San Juan. Facultad de Arquitectura, Urbanismo y Diseño. Instituto de Estudios en Arquitectura Ambiental; ArgentinaFil: Alvarez, Analia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina. Universidad Nacional de San Juan. Facultad de Arquitectura, Urbanismo y Diseño. Instituto de Estudios en Arquitectura Ambiental; ArgentinaFil: Montilla González, Eduardo Alejandro. Universidad Nacional de San Juan. Facultad de Arquitectura, Urbanismo y Diseño. Instituto de Estudios en Arquitectura Ambiental; ArgentinaFil: Ortega, Andres Nector. Universidad Nacional de San Juan. Facultad de Arquitectura, Urbanismo y Diseño. Instituto de Estudios en Arquitectura Ambiental; Argentin
