I am working on a high-rise residential building with VRF. The building envelope is heavily glass, so the owner has decided to also install a hydronic heating system at the building perimeter.

In the precertification form for EA Prereq 2 Minimum Energy Performance after selection of the appropriate compliance path (which in my case is Whole building energy simulation) there is another se

We are modeling a new CS project with retail and restaurant tenant space.

When can we use actual occupancy counts in energy modeling? Is it necessary to have a tenant lease to use the actual occupancy counts?

I am working on a project, which is going for LEED C&S. The project has tenant occupied space, which has designed HVAC system for it.

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We have a question about facade lighting for a retail project. As the mandatory requirement, building facade lighting shall not exceed 0.2W/ft2 for each illuminated surface.

I have 5 existing buildings on a campus that are served by a common (existing to remain) steam boiler plant. There are no other buildings served by this plant.

I am working on a project which is equipped with air-cooled chillers. According to ASHRAE 90.1-2007, Appendix G, table G3.1.3.7.