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Daysim Simulation Report

Daylit Area (DA300lux[50%])
24% of floor area
Mean Daylight Factor
1.8%
Occupancy
3650 hours per year
Glare
0.8% of occupied hours
Shading Group 1 open
61% of occupied hours

Daylight Factor (DF) Analysis: 22% 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 19% for active occupant behavior. The percentage of the space with a daylight autonomy larger than 50% is 24% for active occupant behavior.

Continuous Daylight Autonomy (DA) Analysis: The mean continuous daylight autonomy is 30% for active occupant behavior. The percentage of sensors with a DA_MAX > 5% is 13% for active occupant behavior

Useful Daylight Illuminance (UDI): The percentage of the space with a UDI<100-2000lux larger than 50% is 29% for active occupant behavior.

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

  • Lighting Group 1 (manual_control): 485.9 kWh
  • Lighting Group 2 (manual_control): 318.4 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:

  • ShadingGroup 1: The system is manually controlled according to the Lightswitch model.
  • BG1 Annual Schedule

    Effective DGP profile not found.