Mayorga Pinilla, SantiagoVázquez Moliní, DanielÁlvarez Fernández-Balbuena, AntonioHernández Raboso, GabrielHerráez, Juan AntonioAzcutia, MartaGarcía Botella, Ángel2023-06-182023-06-182016-010960-148110.1016/j.renene.2015.07.011https://hdl.handle.net/20.500.14352/24293Received 14 March 2014, Revised 23 May 2015, Accepted 6 July 2015, Available online 21 July 2015. Esto es una versión preprint.A method to evaluate the risk of using daylight in museums and cultural heritage exhibitions is presented along this study. Although daylight is an ecological and sustainable source of energy and sometimes also an intrinsic part of the artwork, the use of Natural lighting may cause damages in them due to the difficulty of controlling its variability. The developed method quantifies the damage produced to the artworks by daylight compared to artificial light taking into account the level of radiation and its spectral distribution in space and time by comparison with the damage caused by an Illuminant A (Global Risk Factor). The method, applied to the permanent paintings exhibition in the cloister of the fifteenth century of the Monastery of Santa Maria de El Paular, certifies that the control and exploitation of Natural Light should consider an optimal balance between exposure and damage.engjournal articlehttp://dx.doi.org/10.1016/j.renene.2015.07.011http://www.sciencedirect.com/science/article/pii/S0960148115301075open access771.447.025.3Natural LightRisk factorRenewable energyArtworksSpectral irradianceÓptica (Física)Conservación y restauración de obras de arteExposiciones de arte (Bellas Artes)2209.19 Óptica Física