Daylight and artificial lighting simulations evaluate how natural and artifical lighting interact within a building to ensure optimal visual comfort, energy efficiency, and compliance with sustainability benchmarks. Using advanced simulation tools, our service analyzes daylight availability, glare potential, solar exposure, and artificial lighting performance to support informed design decisions.
Specific Services
Useful Daylight Illuminance (UDI) Analysis
UDI evaluates the percentage of occupied time when indoor illuminance levels fall within a useful daylight range (typically 100–2000 lux). This analysis helps determine whether spaces receive sufficient daylight without excessive brightness, supporting balanced daylight design.
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Spatial Daylight Autonomy (sDA) Assessment
sDA measures the percentage of floor area that receives adequate daylight levels. This metric is widely used to assess daylight performance and support sustainability certification requirements.
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Annual Sunlight Exposure (ASE) Evaluation
ASE identifies areas that receive excessive direct sunlight. This assessment helps detect potential glare and overheating risks, enabling the design of appropriate shading or façade strategies.
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Vertical Sky Component (VSC) Analysis
VSC measures the amount of visible sky from a building façade or window. It is commonly used to assess the impact of new developments on surrounding buildings by evaluating potential daylight obstruction and sky visibility.
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Annual Probable Sunlight Hours (APSH) Study
APSH evaluates the amount of direct sunlight received at a particular location over the year. This analysis is typically used in urban planning and daylight rights studies to assess the impact of proposed developments on neighboring properties.
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Combined Lighting Analysis
This analysis evaluates the interaction between natural daylight and artificial lighting systems within interior spaces. By simulating both lighting sources together, the study helps optimize lighting controls, reduce energy consumption, and ensure consistent illumination levels and visual comfort throughout occupied hours.
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The analysis results are compiled into a comprehensive technical report highlighting and performance-based recommendations for projects. The report typically includes the following-
- Detailed Climate Analysis
- Basic Daylighting Simulation Report to support architectural design decisions and building envelope optimization
- Comprehensive Daylight Performance Analysis including APSH, VSC, sDA, ASE, and UDI for compliance with building codes such as ECBC and ASHRAE, and green building certification systems like IGBC
Do you offer package pricing for multiple environmental and simulation studies?
Yes, We can provide package pricing with optimized cost
Can you help Architects at design stage for Design optimization?
Yes, We offer yearly package for Architectural firms who require regular support for Building Performance optimization. Costing is dependent on scale of the project, level of analysis and number of simulation alterations that are to be conducted.
Does the simulation study help in obtaining green building certification?
Yes, early-stage simulation studies help architects evaluate multiple design options and make informed decisions, which supports achieving performance targets required for green building certifications.
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Aniket Chaudhari
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Ankita Galande