[Equest-users] LEED Core & Shell questions

[Patrick J. O'Leary, Jr.]

what do you mean by "if the building approach for tenant fit-out defines 
a tenant design approach which is different from the baseline..." ?

for leed purposes if the building approach for tenant fit-out is NOT  
leed compliant per the appendix 4 quote below (or CS grey box at top of 
page 274 of the 2009 edition of the leed reference guide) then the 90.1 
baseline must be used in both proposed and baseline.

either the design approach is different from the baseline and complies 
with the requirements mentioned (appendix 4/page 274 of 2009 edition) or 
it is not & the baseline must be used in both the proposed and baseline 
simulations (no savings claimed by whatever is actually in the design 
approach that does not meet the leed requirements for sale/lease 
agreements).

my edition of the 2009 edition, page 274, CS grey box title is:  Credit 
for Tenant-implement Efficiency Measures.  it is in the eac1 section, 
right after the large requirement table in section 6. calculations.

On 8/5/13 7:07 AM, Ellis, David wrote:
>
> Anthony, Patrick, Bill and the list,
>
> I too have a keen interest in answering the question below (which 
> might only be answered by USGBC):
>
> Per the C&S Appendix 2 guidance (reference noted in Bill's original 
> question below),
>
> ·"The core and shell building is defined as the parts of the building 
> that are not tenant space. Any constraints or guidance issued to the 
> tenant, such as a maximum level of lighting density or restrictions on 
> occupancy type, must be outlined in the tenant lease or sales 
> agreement (see Appendix 4)."
>
> ·"Model the heating, ventilation, and air-conditioning (HVAC) system 
> as described in the design documents. If the HVAC system is not yet 
> designed, use the same HVAC system as the baseline model, per 
> ANSI/ASHRAE/IESNA Standard 90.1--2007, Table G3.1.1A."
>
> ·"If the team is pursuing any additional energy-saving opportunities 
> not associated with the core and shell areas, outline the 
> opportunities or requirements in the tenant lease or sales agreement 
> (see Appendix 4)."
>
> And Appendix 4 
> (http://www.usgbc.org/resources/appendix-4-tenant-lease-or-sales-agreement 
> ),
>
> ·"Compliance through a binding tenant lease or sales agreement can be 
> pursued as an alternative to or in conjunction with the standard 
> approach to LEED for Core & Shell credit documentation. Clearly 
> identify which components of the credit will be implemented as part of 
> the developer's scope of work, and which portions will be part of the 
> tenants' scope of work and enforced through binding tenant lease or 
> sales agreements."
>
> Per guidance above, for spaces not yet designed ASHRAE Baseline is to 
> be presumed, unless specific measures are designed in that enhance the 
> baseline approach. If those measures are in the C&S design intended 
> for tenant use, then they must be included in any binding lease 
> agreement material (such as sales information or design 
> guideline/specification).
>
> What is not clear is if the building approach for tenant fit-out 
> defines a tenant design approach which is different from the baseline. 
> Does anyone have experience with being required to show that the 
> defined approach also performs?
>
> Regards,
>
> Dave
>
> *David Ellis
> *PE (VA, MD, DC)
>
> LEED AP
>
> CEM
>
> PMP
>
> 	
>
> *HDR Architecture Inc**
> *Energy Services, New Construction
>
> 1101 King Street, Suite 400  | Alexandria, VA 22314
> 703.647.7735 | c: 703.343.6758
> David.Ellis at hdrinc.com <mailto:first.last at hdrinc.com>| 
> hdrarchitecture.com <http://www.hdrinc.com/markets/architecture>
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>
> *From:*Patrick J. O'Leary, Jr. [mailto:poleary1969 at gmail.com]
> *Sent:* Thursday, August 01, 2013 5:37 PM
> *To:* equest-users at lists.onebuilding.org
> *Subject:* Re: [Equest-users] LEED Core & Shell questions
>
> i don't recall the page in the leed 3 manual right off hand but 1)  
> tenant spaces can be modeled as proposed type (hvac/water/lighting) if 
> there is a legally binding signed/or master lease agreement specifying 
> the proposed requirements that all tenants must adhere to and said 
> lease agreement is uploaded as part of the project documentation.  
> i.e. lower lighting lpd, increased hvac unit efficiencies/power, and 
> water saving fixtures.
>
> and 2)  there is an equest limit on the number of submeters a project 
> can have, and a core/shell project requires submeters for each tenant 
> to be separated out between process, lighting, and hvac, so the number 
> of meters can add up quickly if you're dealing with a sizeable 
> core/shell with many tenant spaces.
>
> On 8/1/13 1:36 PM, Anthony Hardman wrote:
>
> See below
>
> *Anthony Hardman, **PE, LEED AP BD&C*
>
> Building Performance Analyst
>
> *The Green Engineer, Inc.*
>
> Sustainable Design Consulting
>
> 54 Junction Square Dr.
>
> Concord, MA 01742
>
> O: (978) 610-2801
>
> C: (720) 840-7862
>
> The Green Engineer, Inc. is a Certified B Corporation
>
> *From:*Bishop, Bill [mailto:bbishop at pathfinder-ea.com]
> *Sent:* Thursday, August 01, 2013 7:11 AM
> *To:* eQUEST Users List
> *Subject:* [Equest-users] LEED Core & Shell questions
>
> 1. Should Tenant Spaces in LEED Core & Shell projects be modeled with 
> Appendix G systems for the Baseline, and for the Proposed as well if 
> there is no HVAC design?
>
> -OR- Should Tenant Spaces be modeled as "unconditioned" in both the 
> Baseline and Proposed? (-OR- some other option?)
>
> Finished tenant spaces should be modeled as designed with terminal 
> units placed on the tenant meter.  If unfinished, it should follow 
> Appendix G.
>
> 2. What is the intent/purpose of the requirement to model separate 
> electric meters for lighting, plug loads and process loads in the 
> Tenant Spaces? Should the cost from these meters be removed from the 
> building energy cost for EAc1 savings?
>
> Download the spreadsheet 
> <http://www.usgbc.org/resources/cs-v20-eac1-spreadsheet>, it should 
> answer your questions.
>
> 3. IF HVAC systems are modeled in the Tenant Spaces, should this 
> energy be assigned to separate meters as well?
>
> LEED Core & Shell Appendix 2 
> <http://www.usgbc.org/resources/appendix-2-core-and-shell-energy-modeling-guidelines> 
> describes how the HVAC systems should be modeled for the Core and 
> Shell Building, but not for the Tenant Spaces. Appendix 2 also 
> describes the requirement for modeling separate meters.
>
> Thank you,
>
> Bill
>
> *William Bishop, PE, BEMP, BEAP, LEED AP | Pathfinder Engineers & 
> Architects LLP*
>
> Oh No Mr Bill.jpgSenior Energy Engineer
>
> 134 South Fitzhugh StreetRochester, NY 14608
>
> T: (585) 325-6004 Ext. 114F: (585) 325-6005
>
> bbishop at pathfinder-ea.com 
> <mailto:wbishop at pathfinder-ea.com>www.pathfinder-ea.com 
> <http://www.pathfinder-ea.com/>
>
> PSustainability -- the forest AND the trees.P
>
>
>
>
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