If you're having trouble knowing exactly how much uplight the light fixtures on your site are emitting there is a simple free tool for converting an IES file into an output that will display upligh

My project puts a new community center on an existing masterplanned campus.

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

We are owrking on a project on previously developed land that we have established as complying with IESNA LZ2.

For this particular credit there is an exemption on how to determine site boundary for zero lot line buildings, that you can use a curb line along the walls instead of normal site boundary as for o

Hi, I'm working on a project in Sweden where we talked about turing off the exterior light between 6pm and 6am.

How does this credit take into consideration lighting for comfort?

Does anyone have any experience of this credit for a 24hr building (such a an ER or airport) where lighting levels are prescribed by the building use (runway lighting, ambulance unloaded bay) and a

Tristan asked me to review the November 2011 addenda for this Credit.

The USGBC has published a draft for additional guidance for international projects. That includes alternative compliance paths and even additional LEED online forms for international projects.