The measured energy savings from two lighting control strategies
The energy-saving benefits of two lighting control strategies--scheduling and daylighting--were investigated at demonstration sites in two large commercial buildings. A continuously dimmable lighting control system was installed at the Pacific Gas and Electric Company Building in San Francisco, and an on/off switching system was installed at the World Trade Center in New York City. By automatically scheduling the operation of the lighting systems to conform with occupancy patterns, lighting energy consumption was reduced 10-40 percent. Several scheduling techniques were investigated, and the influence of switching the zone size on energy savings was examined. Using photoelectrically controlled lighting systems, which switch or dim lighting in accordance with available daylight, the energy consumed for lighting in daylit areas was reduced to 25-35 percent. The influence of clear and overcast conditions on the energy savings associated with daylight-linked controls is discussed.
- Research Organization:
- Lighting Systems Research Group of Lawrence Berkeley Laboratory, University of California, Building 90, Room 3111, Berkeley, CA 94720
- OSTI ID:
- 5959919
- Journal Information:
- IEEE Trans. Ind. Appl.; (United States), Vol. 1A-20:5
- Country of Publication:
- United States
- Language:
- English
Similar Records
Energy-saving benefits of automatic lighting controls
The New York Times headquarters daylighting mockup: Monitoredperformance of the daylighting control system
Related Subjects
COMMERCIAL BUILDINGS
CONTROL SYSTEMS
DAYLIGHTING
LIGHTING SYSTEMS
CLOUD COVER
DEMONSTRATION PROGRAMS
ENERGY CONSERVATION
ENERGY CONSUMPTION
OCCUPANTS
PHOTOELECTRIC EFFECT
SCHEDULES
SWITCHES
BUILDINGS
ELECTRICAL EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
PHOTOELECTROMAGNETIC EFFECTS
320104* - Energy Conservation
Consumption
& Utilization- Commercial & Industrial Buildings- (-1987)