This concept is based onusing light from the sun with a series of openings in the walls and roofs ofbuildings, taking advantage of all the benefits produced by the use oflighting.

Huge energy savings can beachieved either from the reduced use of artificial lighting or from passivesolar energy. In addition to the energy savings resulting from the use ofnatural lighting in a building, we can get to improve the mood of people andthus their state of satisfaction and comfort.

Natural lighting isconsidered an essential concept to achieve comfort within any type of building,whether residential, office, hospital, etc ... To ensure the screening of newbuildings with this parameter, sustainable building certifications as BREEAM, helpto control de design process in order to optimize lighting conditions.