LEED EAP2 simulation of a building without HVAC system

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Dear all,
In a LEED project, generally the design case needs to simulate the energy consumption as the designed HVAC system. However, if HVAC system does not be included in the design, how should I simulate to obtain the EAP2 and EAC1?
The HVAC system is left to the tenants to design and install.
Thanks!
Xing

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I?m not sure if this is helpful or not, but in Table G3.1 (Modeling Requirements for Calculating Proposed and Baseline Performance), Parts 10 (c) and (d) state the following:

c. Where no heating system exists or no heating system has been specified, the heating system classification shall be assumed to be electric, and the system characteristics shall be identical to the system modeled in the baseline building design.

d. Where no cooling system exists or no cooling system has been specified, the cooling system shall be identical to the system modeled in the baseline building design.

Regards,

Larry O. Degelman, P.E., BEMP, HBDP

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Could this be done as a Core & Shell? Without mechanical systems?

Robert Wichert P.Eng. LEED AP BD&C

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Dear Larry,
Thanks a lot! It really helps me!
Xing

? 2013-07-12 21:00:40?"Larry Degelman" ???

I?m not sure if this is helpful or not, but in Table G3.1 (Modeling Requirements for Calculating Proposed and Baseline Performance), Parts 10 (c) and (d) state the following:

c. Where no heating system exists or no heating system has been specified, the heating system classification shall be assumed to be electric, and the system characteristics shall be identical to the system modeled in the baseline building design.

d. Where no cooling system exists or no cooling system has been specified, the cooling system shall be identical to the system modeled in the baseline building design.

Regards,

Larry O. Degelman, P.E., BEMP, HBDP

From:??
Sent: Thursday, July 11, 2013 10:06 PM
To:bldg
Subject: [Bldg-sim] LEED EAP2 simulation of a building without HVAC system

Dear all,
In a LEED project, generally the design case needs to simulate the energy consumption as the designed HVAC system. However, if HVAC system does not be included in the design, how should I simulate to obtain the EAP2 and EAC1?
The HVAC system is left to the tenants to design and install.
Thanks!
Xing

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I think that the project team should consider the Core & Shell
certification. See the document "Rating system selection guidance"
and in the Green Building Design and Construction reference guide consider
Appendix 2. "Core & Shell Modelling Guidelines".
With Regards
Francesco Passerini

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It has been suggested to me that two adjacent apartment buildings being
built at the same time can be modeled as one LEED project.

This sounds wrong to me, but if anybody knows if this is possible, well,
I'm always willing to learn.

Two Buildings as One LEED Project? Yes or no?

Robert Wichert P.Eng. LEED AP BD&C

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Robert,
I haven't done such a project, but consider LEED for Neighborhoods as a similar concept - I think it makes sense to do several buildings as one project.

James V Dirkes II, PE, BEMP, LEED AP

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I would suggest very closely reviewing the USGBC's 'Minimum Program Requirements' document as well as the front end of the LEED Reference Guide where it deals with project boundaries. There are always options when setting boundaries to a LEED project, but in general if it is by the same builder, owned by the same person, built at the same time and part of the same project site you should be able to combine them. A LEED 'Multiple Buildings' application seems like it would work in this instance. It can save certification fees, but at the end of the day you would only get one 'plaque'. Depending on the owner / developer, either or may be more important to them.

Keep in mind there are various tradeoffs with other credits and you'll want to make sure it doesn't hurt the application in some other way - i.e. the LEED consultant will want to review how the site project boundaries come into play.

Adam Barker, C.E.T., LEED AP BD+C

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Thank you both! I found this:
http://www.usgbc.org/Docs/Archive/General/Docs10486.pdf

which seems to corroborate what you both are saying.

Thanks so much!

Robert Wichert P.Eng. LEED AP BD&C

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