Daylight Harvesting is an energy conservation term used to describe the process of actively managing the amount of artificial light in a room when natural sunlight is available. Daylight harvesting can substantially decrease lighting power consumption depending on the amount of natural light available and the accuracy of the daylight harvesting device.
Daylight harvesting systems are designed to maintain a minimum recommended light level in a room. Although the commonly recommended light level for offices in North America is 500 Lux (50 footcandles) on the desktop, many commercial lighting installations typically exceed this level due to design obstacles or an abundance of natural light.
With the increasing demand for environmentally sustainable buildings on the rise, daylight harvesting has become a common feature of green buildings.