LEED sDA & ASE Studies (Annual simulation)
You can use Insight Lighting Analysis to produce sDA and ASE results according to LEED v4 EQc7 opt1. This credit requires annual simulation at an hourly time step.
To conduct this studies, follow the steps outlined in the Overview and take note of the following.
Similar to the LEED studies for a single point in time, many of the settings for this analysis type are automatically predefined.
A. The time range will be automatically set to a full annual simulation, from 8am to 6pm. LEED sDA and ASE studies automatically use the Perez Sky model.
B. Per the LEED requirements, sDA300/50 for at least 55% or 75% regularly occupied floor area is achieved. Additionally, ASE1000/250 of no more than 10% for the occupied floor area that is daylit per sDA300/50. LEED requires the analysis occur at 30 inches above the finished floor. The analysis plane automatically is generated at this height for LEED studies.
C. sDA and ASE calculations require at 24 inch analysis grid, which is automatically set.
Since the sDA and ASE simulation is more intensive than a single point in time, the analysis will cost more Cloud Credits and take more time than a single point in time analysis. Select Check Price before submitting the model for analysis to see the required number of cloud credits for the analysis.
Results summaries will provide guidance on how to improve design to achieve LEED requirements as well as more information about the metrics.
Visual results and schedule results will present sDA300/50 and ASE1000/250 results, sDA and ASE Annual Hours, as well as combined metric results.
Note that since the sDA and ASE simulations much more computationally intensive than a single point in time analysis, the Cloud Credit costs and time will likely be greater than for other analysis types. The Daylight Autonomy (sDA Preview) study type will analyze a sampling of the 3650 hours used in the full LEED v4 EQc7 opt1 (sDA+ASE) analysis. The sDA Preview study type will run faster, and cost less Cloud Credits. Results will be in line with those from the full LEED v4 EQc7 opt1 (sDA+ASE) analysis.