Hi, everyone, If there is a project with demand charge, how should we deal with the rule of 25% process cost. Assume one building annual cost like below: total demand cost（by $/kw）=1$ total energy

Hi all, thanks for the forum. The building is 8 stories, 3 flrs office, 3 floors parking, 1 retail, 1 resturaunt. Is it accepabable to use the 5 story building baseline schedule if the parking gara

I am working on a residential building, the exterior wall assembly as R-19 fill cavity between studs for an 3.5" depth (wood studs 2x4 16" OC) but in the ASHRAE table A3.4, there is no value menti

Can someone help me with exception "b" of mandatory section 6.4.3.9 in 90.1. What is meant by the following: b.

As a non-us consultant I always have a problem attending the EA.P2 requirement.

2. Lighting requirement from ASHRAE 90.1-2007 Appendix G?

Hi Marcus, Our project is a manufacturing building. The 'widget maker' requires chilled water which is typically provided by the chiller/cooling tower.

I'm modeling a baseline system according to System 5. I am considering Table 6.8.1A in order to determine the performance of the DX cooling coils.

Hello, We are working on an office space in climate zone 1. ASHRAE 90.1 does not require heating for these zones. Is some form of cooling such as air conditioning required? John

Hi Marcus, Please advise me regarding ASHRAE 90.2007 mandatory provision item 9.4.4 which is written as follows: "All exterior building grounds luminaires that operate at greater than 100 W shall