The results:
Reaction to the light control has been overwhelmingly positive. Teachers, staff, and students appreciate the feeling of security – light levels increase as soon as they enter the stairwell. The Assistant Director of Custodial Services, William Hitchcock, was noticeably impressed when he walked up the stairs and the lighting one floor above and one floor below him remained at occupied levels as he completed his maintenance routine.
In the rarely used Yocum Library stairwells, lighting returns to an unoccupied level after one minute. In other building stairwells, the settings vary from 5-, 10- or 15-minutes depending upon use, ensuring both maximum energy savings and security for building occupants.
Initial analysis indicates lighting energy savings between 80% and 82% as a result of the new light control solution. These savings have motivated the college to institute an energy audit of all campus buildings to determine where else light control can be used to reduce electricity demand.
In the rarely used Yocum Library stairwells, lighting returns to an unoccupied level after one minute. In other building stairwells, the settings vary from 5-, 10- or 15-minutes depending upon use, ensuring both maximum energy savings and security for building occupants.
Initial analysis indicates lighting energy savings between 80% and 82% as a result of the new light control solution. These savings have motivated the college to institute an energy audit of all campus buildings to determine where else light control can be used to reduce electricity demand.