Building Management (part 4 of 7)

Motion sensors

  • Humans are quite imperfect, especially when it comes to turning things off. Use motion sensors: dispensers for paper towels and soap in bathrooms; for urinal flush valves on toilets and urinals; for lights in halls, bathrooms, classrooms, and offices; and thermostats in classrooms and offices.
  • Motion sensors save money by ensuring that lights and thermostats are on only when a human is present; that toilets get flushed; that only a specific amount of paper towel and soap is dispensed; and that lights are on only when people are moving around.
  • It costs money to install these, but they pay for themselves in both dollars and in public relations. The average payback is about 12-18 months for motion sensors for lighting.
  • Motion sensors for lights have cut the electric bills for one of my clients by 20% per year. Members think it is cool that their church is so progressive; they like to “show off” their church and talk about how “green” we are.


Lead On!