We are doing LEED certification for a building in a campus which already has exterior lighting installed. Can we consider the exterior lighting load identical for base case and proposed case as...

Per ASHRAE 90 G3.1.3.11: Each chiller shall be modeled with separate condenser water and chilled-water pumps interlocked to operate with the associated chiller.

We have two chillers sized...

Our project involves a production plant for pasta and support facilities in Santiago, Chile. Process loads exceed regulated loads, in consequence it is anticipated that...

i m using HAP 4.41 for HVAC load calculation and energy modeling but unfortunatly the weather data available is hourly average s it ok to use for leed energy simulation or i ahve to go to another...

We have a data center project where the owner decided to design-build a dome...

This might be a rather simple question, but would like avoid confusion. Apendix G indicates for vertical fenestration "40% of gross above-grade wall area, or smaller, shall be distributed...

Hi, I am currently working in the certification of an industrial building. The industrial processes are consuming a high percentage of the building's energy consumption. Does the 10% minimum...

Hi All,
I'm working on a project building with double skin facade, and this double skin facade system is equipped with an automatic shading device in the cavity space between the glazings...

Dear All,
I'm working on a residential apartments project and I'm trying to figure out what ASHRAE 90.1-2007 mandates as maximum lighting power...

We are struggling with some definitions from Table 9.4.5 of 90.1-2007. If our building has exterior landscaping, is that covered by any of the area types under Tradable Surfaces (for example...