[Equest-users] Purchased Heat

[David S Eldridge]

Depending on when you registered this LEED project, you may need to use the "Required Treatment of District Thermal Energy in LEED-NC version 2.2" from May 28, 2008.  You can download this memo from the USGBC off of their website.

David
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David Eldridge, PE
LEED(r) AP, HBDP

Grumman/Butkus Associates | 820 Davis Street, STE 300 | Evanston, IL 60201 | Ph: (847) 328-3555, ext 224 | Fax: (847) 328-4550

Energy Consultants and Design Engineers
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From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of YinRic
Sent: Friday, August 14, 2009 12:12 AM
To: Equest User
Subject: [Equest-users] Purchased Heat

Hi,

In a project to go for LEED, in winter, the heat source is steam purchased from public utility company with fixed rate, say, $5,000/month in spite of the real heating demand, how to simulate this in Equest? ASHRAE 90.1-2004 stated that "For systems using purchased hot water or steam, hot water or steam costs shall be based on actual utility rates, and on-site boilers shall not be modeled in the baseline building design." Is it feasible to choose "no heating" in the proposed case and do some simple calculation instead, say, $5,000/month*3 month=$15,000, to generate a result?
Any comments are welcome. Thanks.

Rick, PE, LEED AP

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