DayLighting for The Home Depot Smart Home
Artificial lighting accounts for as much as 40% to 50% of the energy consumption in many commercial and institutional buildings.
Daylighting can significantly reduce the lighting power density without reducing measured lighting levels. It also helps reduce a building owner’s electricity consumption during the utility’s peak demand periods and reduce heating and cooling costs. It may also reduce the loss of worker productivity during power failures.
Although difficult to quantify, daylighting generally increases occupant satisfaction by providing a healthier, more pleasant environment.
Direct sunlight causes glare and fades interior furnishings, and may also contribute to heat losses in the winter and undesirable heat gain in the summer. Furthermore, it is challenging to provide illumination in areas such as the northern exposures, internal cavities, and ground levels of buildings. It is also unpredictable, affected by factors such as position and intensity of the sun, cloud cover, and nearby shading from bills, vegetation, or buildings.