Resumen: The quantification at regional level of the amount of energy (for thermal uses and for electricity) that can be generated by using solar systems in buildings is hindered by the availability of data for roof area estimation. In this note, we build on an existing geo-referenced method for determining available roof area for solar facilities in Spain to produce a quantitative picture of the likely limits of roof-top solar energy. The installation of solar hot water systems (SHWS) and photovoltaic systems (PV) is considered. After satisfying up to 70% (if possible) of the service hot water demand in every municipality, PV systems are installed in the remaining roof area. Results show that, applying this performance-based criterion, SHWS would contribute up to 1662 Idioma: Inglés DOI: 10.1016/j.solener.2010.11.003 Año: 2011 Publicado en: Solar Energy 85, 1 (2011), 208-213 ISSN: 0038-092X Factor impacto JCR: 2.475 (2011) Categ. JCR: ENERGY & FUELS rank: 26 / 79 = 0.329 (2011) - Q2 - T1 Tipo y forma: Artículo (PostPrint) Área (Departamento): Área Mecánica de Fluidos (Dpto. Ciencia Tecnol.Mater.Fl.)