These questions are in regard to exterior lighting power calculation. I am fine with the general approach and calculation.

Our project is an historic building in the flatiron district in NYC.

Does anyone know if the Exterior Lighting Option 3 under the EBOM Rating System (nighttime illumination measurements) can be used as an alternative compliance path for the exterior portion of the N

I've got a project trying to meet the requirements of LZ2 under this credit. the LEED boundary abuts the public rights-of-way at all points. It is essentially an island between streets.

Hello, in LZ3, no more than 5% of the total initial designed fixture lumens should be emitted at an angle of 90 degrees or higher from nadir (straight down).

Hi, I am working on a building that has commercial activities on the street level floor and offices on the rest of the floors, the project is places in Lz4..

I am conducting a survey in affiliation with University of Cincinnati for my Master's thesis which would take just 10-15 minutes of your time.

We are calculating the Exterior Lighting Power Density on a project that has building facade lighting on each facade.

The requirements state that for all zones: "Illuminance generated from a single luminaire placed at the intersection of a private vehicular driveway and public roadway accessing the site is allowed

It seems like most bollard lights emit light straight out to the sides at 180 or 360 deg spreads. Therefore allowing a lot of light to be emitted above 90 deg from nadir.