Long-term experimental analysis of occupancy and lighting in religious facilities

Occupancy and lighting schedules are experimentally determined for two architecturally identical church buildings in different climates. General trends of occupancy reveal intermittent, but consistent, use of the building. The feasibility of occupancy based lighting control in these buildings is evaluated. Experimental results of occupancy based lighting control in the church buildings demonstrate the limited potential for energy savings and that individual areas of the building should be considered and evaluated separately given the varied usage patterns.