Occupancy Sensors
Savings rating ★★★
- $20 rebate
-
25-75% energy
savings
Occupancy sensors, or automatic lighting controls, switch off lights when people leave and turn them back on when people return. Lights switched off can result in substantial savings. Use sensors for security and outdoor lighting, as well as in conference rooms, storage areas, offices, break rooms and restrooms.
Waiting to install your sensor? In the meantime, turn your lights off when rooms are not in use or consider timers to automatically turn lights on and off at programmed hours.
Apply for a $20 Hawaii Energy rebate per infrared or ultrasonic sensor.
Available for existing facilities and new construction.
Smart Energy Facts
Infrared sensors can tell the difference between heat emitted by moving bodies and background heat. They need direct line-of-sight to work and are good for outdoors and enclosed spaces such as offices and lobbies.
Ultrasonic sensors send out sound waves and measure their speed of return from people entering or exiting a space. They don’t need line-of-sight and can detect movement behind partitions, hallways and stairways.
Dual-technology sensors combine infrared and ultrasonic methods to detect motion and the presence of bodies.
Energy-Savings Potential with Occupancy Sensors
|
Application
|
Energy Savings
|
|
Offices (private)
Offices (open spaces) Restrooms Corridors Storage areas Meeting rooms Conference rooms Warehouses |
25-50%
20-25% 30-75% 30-40% 45-65% 45-65% 45-65% 50-75% |
Note: Figures listed represent maximum energy-savings potential under optimum circumstances. Figures are based on manufacturer estimates. Actual savings may vary. Source: California Energy Commission/U.S. Department of Energy/Electric Power Research Institute
