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<p class=MsoNormal><span style='color:black'>The system selection does self-regulate
to some degree based on the predominant conditions in any particular location, climate
and energy prices. I think it probably hits the mark much more than it
misses in Vermont, although you have found an exception.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:black'>As you mention, a project putting
in PSZ-HP in Vermont is probably not anywhere close to using Appendix G.
I doubt very many LEED projects in that region end up taking the electric
heating path, most will be on the natural gas side. Are you seeing many
geothermal projects in the area?<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:black'>Someday, if geothermal heat pumps became
the conventional type of system, then a revision to the standard would
definitely be in order.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:black'>Obviously it would be misleading
to tell your client that they are saving that much money per year, you may want
to perform some intermediate system selection for that purpose.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:black'>David<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Karen
Walkerman<br>
<b>Sent:</b> Monday, March 17, 2008 2:09 PM<br>
<b>To:</b> Keith Swartz<br>
<b>Cc:</b> bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Bldg-sim] FW: LEED system selection for GSHP<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>Thanks for all the
comments. This is for LEED EA Credit 1. The system has no fossil
fuel supplementation, so PSZ-HP it is. The poor baseline benefits the
project in terms of LEED points, however, this leads to something I've been
thinking...<br>
<br>
Why not use the same baseline for all buildings? Or at least make
baseline system selection appropriate for different climate zones. This
baseline would make choosing electric resistance heat look somewhat reasonable
in this climate. Use of electric resistance heat is actually no longer
legal in the state of Vermont for commercial construction.<br>
<br>
<o:p></o:p></p>
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