Indirect Light

• The aim of daylighting is to use indirect natural light to reduce the glare within the building space, while adding no additional heat.
  
  

Energy Saving

• The National Institute of Building Sciences reports electric lighting can total between 35 and 40 percent of the total energy consumed by a commercial building, which can be reduced with the use of daylighting to between 10 and 20 percent.
  
  

Heat

• Electric lighting can increase energy consumption and its associated costs by emitting heat from burning light bulbs. The Energy Center of Wisconsin reports that, when used with filtering techniques, daylighting produces little unwanted heat.
  
  

South Facing

• The direction from which daylight enters a building can have a great effect on the energy allowed into a building. The U.S. Department of Energy reports south-facing windows allow most winter sun but little direct sun in the summer, when properly shaded.
  
  

North Facing

• According to the U.S. Department of Energy, north-facing windows admit natural light with little glare and no unwanted summer heat.