<html>
Energy 10 software is acceptable for LEED even though you are correct on
ECBM in 90.1. The LEED Reference Guide lists some exceptions to the
90.1 ECBM. For the proper building type and systems, Energy 10
would be acceptable according to my understanding.<br>
<br>
At 12:37 PM 03/24/2003 -0600, you wrote:<br>
<blockquote type=cite class=cite cite>The requirements for LEED 2.1
Energy and Atmosphere credit 1 state:<br>
<x-tab> </x-tab>Reduce
design energy cost compared to the energy cost budget for<br>
energy<br>
<x-tab> </x-tab>systems
regulated by ASHRAE/IESNA Standard 90.1-1999 (without<br>
amendments),<br>
<x-tab> </x-tab>as
demonstrated by a whole building simulation using the Energy<br>
<x-tab> </x-tab>Cost
Budget Method described in Section 11 of the Standard.<br>
In my quick check of the standard, the modeling software must be able
to<br>
model at least ten (10) thermal zones. If we are going by the
letter,<br>
Energy-10 does not qualify because it can only model two (2)
zones. The<br>
DOE-2 website claims that the ASHRAE standard was based on DOE-2
analyses,<br>
so it looks like DOE-2 is the winner. <br>
<br>
(I personally have not used Energy-10 or DOE-2. I am working
primarily with<br>
EnergyPlus.)<br>
<br>
I hope I have helped.<br>
<br>
Andrew Phelps, CERL-ERDC<br>
Student Contractor<br>
Andrew.T.Phelps@ERDC.USACE.ARMY.MIL<br>
(217) 352-6511, ext. 7539<br>
<br>
<br>
-----Original Message-----<br>
From: Liu, Bing
[<a href="mailto:Bing.Liu@pnl.gov" eudora="autourl">mailto:Bing.Liu@pnl.gov</a>]<br>
Sent: Monday, March 24, 2003 11:16 AM<br>
To: BLDG-SIM@gard.com<br>
Subject: [BLDG-SIM] Energy-10 and LEED<br>
<br>
<br>
I am working on a project which had registered for LEED certification.
Now<br>
we have to make decision of the energy simulation tool we are going to
use<br>
to optimize energy performance. Our choice is DOE-2 or
Energy-10. I am not<br>
sure if Energy-10 is a qualified energy simulation program for LEED<br>
certification and I appreciate if anyone could tell me more about it.
<br>
<br>
Thank you for your help! <br>
<br>
<br>
_____________________________<br>
Bing Liu, P.E.<br>
Research Engineer<br>
Pacific Northwest National Laboratory<br>
Energy Science & Technology Directorate<br>
P.O. Box 999, MS #K5-16<br>
Richland, WA 99352<br>
Voice: (509) 375-3710, Fax: (509) 375-3614<br>
Email: Bing.Liu@pnl.gov<br>
<br>
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