[Bldg-sim] LEED Canada CS 2009 - No Tenant Layouts

[Arpan Bakshi]

The COMNET workbook Paul mentioned; I have recently been taking a good look
at it, have others started to adopt it into a work process for their
offices?
The authors have done a good job of layout out the modeling process and
workflow.


Arpan



On Wed, Aug 3, 2011 at 2:02 PM, Paul Riemer <Paul.Riemer at dunhameng.com>wrote:

>  Aaron & Lilah,****
>
> In its LEED 2012 draft, the USGBC replaced the 25% default process energy
> piece with more generic statements to model unregulated loads accurately and
> to document the assumptions.  GBCI reviewers have commented on specific
> internal load assumptions.****
>
> The ASHRAE 90.1 User’s Manual, Title 24 NonRes ACM, and COMNET are also
> good sources for default internal loads.  I believe the COMNET workbook even
> puts them side by side.****
>
> ** **
>
> *Paul Riemer, PE, LEED AP BD+C* ****
>
> *DUNHAM*****
>
> ** **
>
> *From:* bldg-sim-bounces at lists.onebuilding.org [mailto:
> bldg-sim-bounces at lists.onebuilding.org] *On Behalf Of *Montague, Lilah
> *Sent:* Wednesday, August 03, 2011 12:47 PM
> *To:* Aaron Smith; bldg-sim at lists.onebuilding.org
> *Subject:* Re: [Bldg-sim] LEED Canada CS 2009 - No Tenant Layouts****
>
> ** **
>
> Hi Aaron,****
>
> ** **
>
> I also am unable to find a reference to the 25% process energy
> requirement.  ****
>
> ** **
>
> For the tenant spaces with a lease agreement for the lighting power
> densities, I would use assumptions for space breakdowns, and then apply the
> lease agreement lighting power density reductions.  I also suggest listing
> these assumptions in the modeling report (or narrative).  To get an
> assumption of an office area breakdown, one way could be to build a quick
> eQUEST model of the office floor space, selecting “building type” as office
> in the wizard, then going into the detailed wizard to find the default space
> area breakdowns (80% office space, 5% washroom, 5% kitchen, etc).  I am not
> sure what the eQUEST default area breakdowns are based on, but that info may
> be available somewhere in the eQUEST documentation.  ****
>
> ** **
>
> Also suggest you check the recent LEED Canada 2009 Supplementary Energy
> Modeling Guidelines document, available on the CaGBC website, under
> “Programs => LEED => Rating Systems => Core and Shell.  ****
>
> ** **
>
> Good luck!****
>
> ** **
>
> ** **
>
> Lilah****
>
> ** **
>
> *Lilah Montague*, B.Eng. EIT LEED® AP****
>
> Sustainable Energy Advisor****
>
> ** **
>
> 1220 Homer St., Vancouver, BC V6B 2Y5****
>
> *t*: 604.484.2258    *f*: 604.684.5447    *e*:
> Lilah.Montague at perkinswill.com* *   http://www.perkinswill.ca<http://www.busbyperkinswill.ca/>
> ****
>
> *Perkins+Will Canada.*  Ideas + buildings that honor the broader goals of
> society****
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> *From:* bldg-sim-bounces at lists.onebuilding.org [mailto:
> bldg-sim-bounces at lists.onebuilding.org] *On Behalf Of *Aaron Smith
> *Sent:* Tuesday, August 02, 2011 7:28 PM
> *To:* bldg-sim at lists.onebuilding.org
> *Subject:* [Bldg-sim] LEED Canada CS 2009 - No Tenant Layouts****
>
> ** **
>
> Hi,****
>
> ** **
>
> I’m preparing a model for an office building for LEED Canada CS 2009.
>  Modelling is with EE4 following NRCan rules with an MNECB reference
> building.  Base building includes rooftop units, baseboard perimeter heat,
> core area with washrooms, electrical rooms, stairwells, elevators, etc.  One
> floor of the building has a ceiling in place with VAV boxes, diffusers and
> lights laid out for an open office plan (as laid out in the lease).  The
> other two floors of the building have VAV boxes installed as base building
> but the tenants will be responsible for installing lights or diffusers in
> tenant fit-ups.  Walls will probably be added and VAV boxes may need to
> change at that point in time.****
>
> ** **
>
> I had the owner put requirements in the lease for lighting power density
> and lighting controls (Core Performance Guide) so I’ll be claiming credit
> for those.  The problem I have is that there are no floor layouts indicating
> open office areas, private offices, conference rooms, staff rooms, etc. so
> I’m not sure what to use for reference building lighting power density and
> plug loads in the leased tenant areas.  My first thought for lighting was to
> use the building area method for the reference building then use a mix of
> actual installed lighting and Core Performance Guide lighting densities in
> the proposed assuming all open office plans for the tenant fit-up areas.
> Any comments would be appreciated.  ****
>
> ** **
>
> As a side note, I don’t see any requirement in Canada for 25% of energy
> being process like there is in the US.****
>
> ** **
>
> Thanks,****
>
> Aaron ****
>
> ** **
>
> *Aaron Smith, **P.Eng *****
>
> *LEED® AP BD+C,** M-ASHRAE, Mechanical Engineer*****
>
> ****
>
> t: (902) 422-7393****
>
> f: (902) 423-4945****
>
> e: asmith at mreng.ca****
>
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