How Much Energy Do Occupancy Sensors Save

Per a study conducted by the EPA titled “Demand Reduction and Energy Savings Using Occupancy Sensors,” occupancy sensors can reduce energy waste by as much as 68% and increase energy savings by as much as 60%. These savings were calculated from using a 5-minute timer in a bathroom.

How do occupancy sensors save electricity?

Occupancy sensors detect the presence or absence of people and turn lights on and off accordingly. They may reduce lighting energy consumption by 50 percent or more in some circumstances, but the savings for any given installed sensor can be much less.

How much energy do daylight sensors save?

Although a small percentage (2% in USA) of commercial building have daylight sensors [4], this type of control can reduce lighting energy consumption by up to 60% [5] depending on the use of space.