Does anyone know if either prereq EA - Minimum Energy Performance, or the Optimize Energy Performance credit need a third party review as it did under the CaGBC's LEED 2009? It hasn't mentioned...

Has USGBC issued any equivalency for Title 24 (vs ASHRAE 90.1) in LEEDv4 EA credits yet? I've seen comments saying it can take a while. Just wondering if it is on the horizon for LEEDv4 or not?...

Hi everyone,

Reading the v4 reference guide, it seems that the default...

For Data center project, I've supplied the designer team with the Data Center Calculator, so that they'd be able to fill it in with their project data.
However, There are some questions in...

Markus, thanks again.
Since the English is not my mother tonge, sometimes I'm geting confused by enterpreting some explanation although I'm already 37 years in the HVAC branch. Like for...

Hi Markus,
Thanks for your reply. I've been trying to undestand the explanation of 90.1-2013 User's Manual, page G-35. That's why I've decided to ask about, because I was not sure for which...

Hi Markus and all coleagues,
In the Data center I'm about to start modeling, there are 4 IP rooms. Each of these rooms has IP load with a power...

Greetings,
When modeling Proposed model for LEED and there are shadings from adjacent buildings in it, should these shading be applied also to the Baseline model or they should be omitted...

Does anyone know wether or not evaporator input power should be included in the efficiency calculation of a VRF system? At first look it seems obvious that it should but then you start comparing...