Autonomy
Annual daylight performance from a single run
Daylight Autonomy (DA) is the percentage of occupied hours in a year where a target illuminance (typically 300 lux) is met by daylight alone. DA and Useful Daylight Illuminance (UDI) variants cover different analysis objectives.
DL-Light calculates all variants in a single run using climate-based ray-tracing, and generates BREEAM-compliant custom criteria reports. The result reveals which areas of a building rely on artificial light and for how long.
- DA and UDI calculated in a single run
- Custom illuminance threshold and occupancy schedule
- BREEAM custom criteria automatic report
- Annual climate-based ray-tracing (Radiance)
- Ideal for identifying over-lit and under-lit zones
