Observed arrival · 2026-11-12
Room Daylight Optimizer
A free browser-based design tool estimates room daylight metrics and energy savings, then exports PDF reports and DXF models.
○Open
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$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Architects and daylighting designers
- Worth noticing
- It traces 145 Tregenza sky patches plus sun directions, while labeling results a design-stage estimate rather than a validated simulation.
Field notes
The energy comparison uses a standard room of the same size and orientation, with typical climate windows, no shading, and lights always on. Users can adjust assumptions such as occupied hours, heating COP, and glass properties; the site notes that some HVAC loads are excluded and that built-in city temperatures are used when no EPW weather file is supplied.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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