Green Star FAQs


FAQ F-00208
Can Upward Waste Light Ratio be used instead of Upward Light Output Ratio?

Yes. 

Projects may use UWLR (Upward Waste Light Ratio) instead of (ULOR) Upward Light Output Ratio when targeting Light Pollution. An external luminaire with a UWLR not exceeding 5% may be used to demonstrate evidence as required by the requirements in Light Pollution - Light Pollution to Night Sky.





Rating Tools

This FAQ is related to the following Rating Tools, Categories or Credits:

  • Green Star - Design & As Built v1 / Emissions / 27.1 Light Pollution - Light Pollution to Night Sky
  • Green Star - Design & As Built v1.1 / Emissions / 27.1 Light Pollution - Light Pollution to Night Sky
  • Green Star - Design & As Built v1.2 / Emissions / 27.1 Light Pollution - Light Pollution to Night Sky
  • Green Star - Design & As Built v1.3 / Emissions / 27.1 Light Pollution to Night Sky
  • Green Star - Interiors v1 / Emissions / 24.1 Light Pollution - Light Pollution to Night Sky
  • Green Star - Interiors v1.1 / Emissions / 24.1 Light Pollution - Light Pollution to Night Sky
  • Green Star - Interiors v1.2 / Emissions / 24.1 Light Pollution - Light Pollution to Night Sky
  • Green Star - Interiors v1.3 / Emissions / 24.1 Light Pollution to Night Sky
  • Green Star - Interiors PILOT / Emissions / 27 Light Pollution
  • Green Star - Performance v1 / Emissions / 27.1 External Lighting
  • Green Star - Performance v1.1 / Emissions / 27.1 External Lighting
  • Green Star - Performance 1.2.0 / Emissions / 27.1 External Lighting
  • Green Star - Railway Stations v1.1 / Emissions / 31.0 Light Pollution to Neighbouring Bodies
  • Green Star - Railway Stations v1.1 / Emissions / 31.1 Light Pollution to Night Sky
  • Green Star Buildings v1 / Nature / 35 Impacts to Nature
  • Green Star Buildings v1.0 / Nature / 35 Impacts to Nature


Disclaimer

These FAQs are:

  • provided as additional technical assistance for Green Star users.
  • optional and free to use on Green Star projects.

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The GBCA reserves the right to add or remove FAQ at our discretion.




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