Stanford University
OP-T2-14: Lighting Sensors

Occupancy sensors for lighting have been installed as retrofit projects in most classroom buildings as well as the public spaces and bathrooms of most student housing on campus. Occupancy sensors and timers for lighting have been installed in buildings across campus as part of the Building Level Sustainability Program (http://sem.stanford.edu/buildings_initiatives). Stanford's Guidelines for Sustainable Buildings also makes explicit mention of occupancy sensors as a preferred design strategy to increase efficiency (http://sem.stanford.edu/sites/sem.stanford.edu/files/documents/Stanford_sustainable_guidelines.pdf), and thus these sensors are now standard practice for new construction projects. An excellent example of sensors can be found in the Y2E2 building, which includes both sensors for occupancy and photocell technology for daylight control.