Natural daylighting is simply using natural day light to illuminate a home or buildings interior instead of relying on electrical use during the day. Its been proven that people live happier and are more efficient at work when natural light floods their living space. Tests have been done on educational facilities and the U.S. Department of Energy’s Energy Information Administration reports that children who were exposed to daylighting in their schools perform better and have a lower absenteeism rate. 

Daylighting technologies are relatively easy to incorporate in new construction. Opportunities also exist in existing buildings but, may require a little creativity. Technologies include efficient windows, skylights, light shafts, and many architectural features that allow natural light to penetrate into the home or building. Newer technologies are used as well. Over the past decade, some Japanese malls have benefited from natural light delivered to the interior  via fiber optic cables originating on the roof.

For more information visit http://www.daylighting.org/what.php