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Daysim Simulation Report

Daylit Area (DA300lux[50%])
51% of floor area
Mean Daylight Factor
2.3%
Occupancy
3650 hours per year
Glare
17% of occupied hours

Daylight Factor (DF) Analysis: 28% of all illuminance sensors have a daylight factor of 2% or higher. Assuming that the sensors are evenly distributed across 'all spaces occupied for critical visual tasks', the investigated lighting zone does not qualify for LEED-NC 2.1 daylighting credit 8.1.

Daylight Autonomy (DA) Analysis: The mean daylight autonomy is 49% for active occupant behavior. The percentage of the space with a daylight autonomy larger than 50% is 51% for active occupant behavior.

Continuous Daylight Autonomy (DA) Analysis: The mean continuous daylight autonomy is 69% for active occupant behavior. The percentage of sensors with a DA_MAX > 5% is 37% for active occupant behavior

Useful Daylight Illuminance (UDI): The percentage of the space with a UDI<100-2000lux larger than 50% is 69% for active occupant behavior.

Electric Lighting Use: The predicted annual electric lighting energy use is:

  • Lighting Group 1 (manual_control): 110.2 kWh
  • Lighting Group 2 (manual_control): 166.3 kWh

Simulation Assumptions

Site Description:

    The investigated building is located in Boston (42.37 N/ 71.02 E).

User Description:

    The total annual hours of occupancy at the work place are 3650.Occupancy Schedule

Lighting Control:

  • Lighting Group 1 (manual_control): The system has an installed electric lighting power of 200.0W. It is manually controlled with an on/off switch.
  • LG1 Annual Schedule
  • Lighting Group 2 (manual_control): The system has an installed electric lighting power of 100.0W. It is manually controlled with an on/off switch.
  • LG2 Annual Schedule

ShadingControl:

    There is no dynamic shading system in the scene.