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Occupancy DemandHeating, cooling and lighting typical account for 64% of energy consumption in commercial office space. While these values can change between climate zones and occupancy types almost always heating, cooling and light are the major consumer of energy. For this reason the most significant energy saving opportunity (ESO) is often strategies including occupancy status.
Occupancy strategies do not necessarily require occupancy sensors however there may be times where the advantage of sensing occupancy justifies the capital costs. |
Managing heating, cooling and lighting around occupancy can include On/Off schedules, run timers where the occupant is required to activate the system and it automatically turns off, setback conditions where the temperature or light level shifts to a lower consumption state and the occupant activates a comfort state for a timed period before it returns to the lower energy consumption state.
Monitoring CO2 can also be helpful with understanding occupancy in classrooms, theatres and sports halls. While the standard use of CO2 sensors is for fresh air control it also provides information on when an event starts or ends.
Monitoring energy use is the first step toward energy awareness. Strategies around occupancy is often the first step toward reducing consumption.
Key points:
Monitoring CO2 can also be helpful with understanding occupancy in classrooms, theatres and sports halls. While the standard use of CO2 sensors is for fresh air control it also provides information on when an event starts or ends.
Monitoring energy use is the first step toward energy awareness. Strategies around occupancy is often the first step toward reducing consumption.
Key points:
- Biggest opportunity for energy reduction.
- Can include schedules, timers
- (III) Add set back condition rules for temperature and light levels
- (IV) Can include outdoor condition tethering