[Bldg-sim] LEED EAc2 baseline

[Paul Erickson]

Vikram,


1.       Per the v2.2 Reference Guide, you should use the total energy cost for the building, not the electric-only energy cost.

2.       If your project was registered after May 28, 2008, the document "Required Treatment of District Thermal Energy in LEED-NC v2.2 and LEED for Schools" makes it clear that you must include the central plant energy in the EAc2 calculations.  If registered prior to May 28, 2008, then only the energy associated with your modeled building/systems.



Paul

Paul Erickson LEED AP
Sustainable
Affiliated Engineers, Inc. <http://www.aeieng.com/>
5802 Research Park Blvd. | Madison, Wisconsin  53719 | P 608.236.1112 | F 608.238.2614
perickson at aeieng.com<mailto:perickson at aeieng.com> | www.aeieng.com
From: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Vikram Sami
Sent: Friday, September 11, 2009 4:33 PM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] LEED EAc2 baseline

I'm working on a project that is looking into installing a photovoltaic system on the roof, and wants to look into LEED EAc2. I have a two part question:


1.       To get the EA credits, should I base the array size on only the building's electric use, or should I base it on the total energy use including non-electric usage?

2.       If the project gets high pressure steam and chilled water from a central plant, do I include the central plan energy, or only the pump energy for circulating the steam/chilled water?

Thanks in advance for your advice.

Vikram Sami, LEED AP
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