I believe there is an error in the Sample LPD Calculation file that has been provided. Or, my understanding how to correctly calculate the LPD is wrong.

This may stretch a bit outside the LEEDuser realm, but...... I received a comment on a past project, where the reviewer wanted verification that the project was actually a LZ3 as defined by IESNA

Hi, gang, One of our lighting designers is very frustrated with the LEED requirements for light trespass at the boundary, specifically where the driveway goes from the public road onto our site.

Hello All, Are exterior uplights exempt from the 90 degrees above nadir categorisation if they are under cover of a shading structure, such as a canvas sail or cabana?

1. One of our project have around 1000 m2 landscaping area. In which they are using 20 numbers of 10W bollard external lighting in only 400m2 area.

What is the height off the ground at which the vertical Fc are are to measured at the property line?

It looks as though building facade lighting is a non-tradable surface, but our LED facade lighting is exceeding the LPD, are LEDs that are backlighting a building facade exempt from calculations?

We are going to provide the LED strip along the vertical line of the building facade. If we assume that the 50% of their lumen is above 90 degree from nadir then our bldg.

The LEED boundary for our project does not include the parking lot near the building.

I plan to get the this credit through simulation. I heard that DIALUX seems can get it, but I am not so sure. Please help me and tell me if I plan to get this credit though simuation, Which softwar