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Individual Lighting Power Allowances for facades

NC-2009 SSc8: Light Pollution Reduction
posted by Lise Dannesboe on Aug 18, 2013, 1:46 pm

Hej! Our building is in LZ3 and Lighting Power Allowance for facades is 0.15W/ft2 for each illuminated wall . I understand that these requirements have to be met during working hours, after...

city owned lights

NC-2009 SSc8: Light Pollution Reduction
posted by Saju Varghese on Sep 12, 2013, 3:49 pm

city owned lights are not included in our photometric calculations, but how in reality can somebody check that the lights are matching our calculations if the city-owned lights are there anyways...

"Lighting Boundary" definition and use

NC-2009 SSc8: Light Pollution Reduction
posted by Anya Fiechtl on Oct 11, 2013, 1:31 pm

LEED interpretation 10236 (http://www.usgbc.org/leed-interpretations?keys=10236&=Search#) seems to indicate...

Method of Calculating Exterior Lighting Power Density

NC-2009 SSc8: Light Pollution Reduction
posted by SSN Energy Model on Oct 28, 2013, 6:39 am

Could any one tell me, the method of...

Wattage Difference

NC-2009 SSc8: Light Pollution Reduction
posted by SSN Energy Model on Oct 28, 2013, 7:00 am

We have received IES file for one of our lighting simulation project.
Here, the wattage of light fitting is 25W (As per brochure) but when we importing IES file to simulation software, the...

Site lumen calculation_Historical building

NC-2009 SSc8: Light Pollution Reduction
posted by Serena Penasa on Nov 11, 2013, 10:38 am

Good morning,
I have a project in area LZ3 which is a listed...

light trespass vs hardscape

NC-2009 SSc8: Light Pollution Reduction
posted by Carrie Laurendine on Nov 20, 2013, 6:20 pm

project is along an arterial road with lots of city lights. i see the leed interpretation #10114 - which allows leed boundary to be extended outward to midline of street in this scenario.

...

Landscape Allowance

NC-2009 SSc8: Light Pollution Reduction
posted by Emmanuel Pauwels on Dec 2, 2013, 4:50 am

We are working on a Project that will have exterior lighting in the landscape area.
We should include landscape lighting in the calculations?
Does Ashrae allow landscape lighting?...

Historic building facade highlighting 24/7

NC-2009 SSc8: Light Pollution Reduction
posted by Alfred Servodidio on Dec 11, 2013, 3:47 pm

Our project is an...

Translucent "Daylighting" Panels- count as "shielded" openings?

NC-2009 SSc8: Light Pollution Reduction
posted by Lyle Axelarris on Dec 20, 2013, 2:39 pm

We have insulated, translucent daylighting panels on the project, and I'm wondering if they will be considered "windows" for the interior lighting requirements of this credit. If Option 1 (power...