[Bldg-sim] Excel old Table 1.4 ASHRAE 90.1-2007 needed with LEED v4?

Jones, Christopher cjones at halsall.com
Tue Mar 3 12:15:39 PST 2015

I downloaded the calculator to have a look.  On the Lighting tab I selected Space by Space Method.  The Proposed case has two comments.  The first one, on row 46, column L/M states: “Credit for automatic lighting controls should be modeled using the appropriate power adjustment factor from Table G3.2, applied only to the controlled lighting power and not where required by 9.4.1 per Table G3.1#6(g)”.  Fair enough.  But on the row below, the comment states: “For Space by Space Method Enter the design lighting power density for this space in the Proposed case.  This value should not include Table G3.2 adjustments”.  I’m confused?

Christopher Jones, P.Eng.
Tel: 416.644.4226 • Toll Free: 1.888.425.7255 x 527

From: Bldg-sim [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Jim Dirkes
Sent: Tuesday, March 03, 2015 2:02 PM
Cc: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] Excel old Table 1.4 ASHRAE 90.1-2007 needed with LEED v4?

That old Excel file is superceded by another called "Minimum Energy Performance Calculator".  It's much more detailed and not particularly easy to use, but it's workable.
Look for it on the LEED site.

On Tue, Mar 3, 2015 at 12:25 PM, David GARCIA SANCHEZ <dgarciasanchez at greenaffair.com<mailto:dgarciasanchez at greenaffair.com>> wrote:
Hi all,

Continuing with the history of LEED v4 I read that in the credit EApr2 we still have the old excel file for the Table 1.4 that we need to submit with the energy modelling.

Since this old file has been done with ASHRAE 90.1-2007 Appendix G modelling requirements. Someone of you has the main changes we need to made in order to update or adapt to ASHRAE 90.1-2010 Appendix G?

Leed says that this old Table must be submitted with all registered projects. Someone of you know when this table file finally will be adapted to the newest versions of ASHRAE 90.1-2010 and 2013?

Thanks in advance for your help,


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