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<p class=MsoNormal><span style='color:#1F497D'>A few people asked for me to
post what I found on this issue, and here it is. Still not 100%, but it *<b>looks</b>*
like you can’t take credit for gas-fired fuel cells in EAc1. As
much as they may help with emissions, electrical power infrastructure, and
reduction of time-of-use utility charges, I think the best you can do is apply
for an ID credit (which is a shame).<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Although this CIR is from NC
v2.1 (before Appendix G even existed), and although the two paragraphs of the
response sort of contradict each other, it appears that they do NOT allow peak
shaving to be accounted for in EAc1. I’m not sure whether to model the
fuel cells in both the baseline and proposed, or completely remove them from
both…<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal style='line-height:13.5pt'><b><span style='font-size:9.0pt;
font-family:Geneva;color:#333333'>(ID credit under LEED-NC v2.1)<o:p></o:p></span></b></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width="100%"
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<td width="15%" valign=top style='width:15.0%;padding:0in 15.0pt 0in 0in'>
<p class=MsoNormal style='line-height:13.5pt'><b><span style='font-size:9.0pt;
font-family:Geneva;color:#333333'>5/24/2004</span></b><b><span
style='font-size:9.0pt;font-family:"Times New Roman","serif";color:#333333'> - </span></b><span
style='font-size:9.0pt;font-family:Geneva;color:#333333'><o:p></o:p></span></p>
</td>
<td valign=top style='padding:0in 15.0pt 0in 0in'>
<p class=MsoNormal style='line-height:13.5pt'><b><span style='font-size:9.0pt;
font-family:Geneva;color:#333333'>Ruling</span></b><span style='font-size:
9.0pt;font-family:Geneva;color:#333333'><br>
</span><span style='font-size:9.0pt;font-family:Geneva;color:red'>The use of
a generator for peak shaving is a legitimate energy cost saving and capacity
reduction measure</span><span style='font-size:9.0pt;font-family:Geneva;
color:#333333'>. Identical rate schedules must be used in both the proposed
and budget buildings for energy modeling (see EAc1.5 CIR Ruling dated
3/24/04). Note that using a time-of-use (TOU) rate will only capture a
portion of the potential benefits to the project and the environment under
EAc1, since the budget building must also use the TOU rate for modeling
purposes.<br>
<br>
</span><span style='font-size:9.0pt;font-family:Geneva;color:red'>The peak
shaving use of the generator does not count under EAc1</span><span
style='font-size:9.0pt;font-family:Geneva;color:#333333'>. Since the use of a
generator to shave peak demand is not a regulated component of ASHRAE 90.1,
any savings/environmental benefits could qualify as an innovation credit. Be
sure to quantify the benefits. Claims of emission reductions need to be based
on comparison to a reasonable baseline in your region. Claims made on dollar
savings alone should be equal to at least 5% of the total building energy use
(see previous IDc1.1 CIR Rulings dated 4/17/03 and 8/16/02).<o:p></o:p></span></p>
</td>
</tr>
</table>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><b><span style='font-family:"Arial","sans-serif";color:teal'><o:p> </o:p></span></b></p>
<p class=MsoNormal><span style='color:#1F497D'>Would love to be proved wrong!</span><b><span
style='font-family:"Arial","sans-serif";color:teal'><o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-family:"Arial","sans-serif";color:teal'><o:p> </o:p></span></b></p>
<p class=MsoNormal><b><span style='font-family:"Arial","sans-serif";color:teal'>GHT
Limited<br>
</span></b><b><span style='font-family:"Arial","sans-serif"'><ns0:PersonName><span
style='color:black'>James Hansen</span></ns0:PersonName></span></b><b><span
style='color:black'>, PE, LEED AP<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Senior Associate</span></b><b><span style='color:black'><o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'><ns0:Street><ns0:address><span
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style='color:black'>VA</span></ns0:State><span style='color:black'> </span><ns0:PostalCode><span
style='color:black'>22201-4749</span></ns0:PostalCode></ns0:place></span><span
style='color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:black'>703-338-5754 (Cell)</span><span style='color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:black'>703-243-1200 (Office)</span><span style='color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:black'>703-276-1376 (Fax)</span><span style='color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:teal'><a
href="http://www.ghtltd.com/"><span style='font-size:10.0pt'>www.ghtltd.com</span></a><o:p></o:p></span></p>
<p class=MsoNormal><b><span style='color:#31849B'><o:p> </o:p></span></b></p>
</div>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<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"'> James Hansen <br>
<b>Sent:</b> Tuesday, April 20, 2010 8:16 PM<br>
<b>To:</b> bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> Natural Gas generation of electricity as it relates to EAc1<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I think I asked this question a year ago or so, but wanted
to see if anyone had an update on this, as I believe there may have been a
recent CIR that addresses this issue (that I can’t seem to find).<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I’m modeling a building that is fed by an electric service
that is mostly demand based. The building Owner has decided to use
gas-fired fuel cells in conjunction with natural gas generators to reduce
demand via peak shaving. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Someone mentioned that this might be a no-no as it relates
to Appendix G – that I would need to model the fuel cells and natural gas
generators in the baseline building as well.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Does this make sense, and has anyone seen a CIR that
confirms this?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>The client is using fuel cells to reduce emissions, reduce
the peak demand seen by the utility company (thereby reducing their use of
inefficient diesel generators), etc…it doesn’t seem fair not to
award a project that wants to do this.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Anyone have any input?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><b><span style='font-family:"Arial","sans-serif";color:teal'>GHT
Limited<br>
</span></b><b><span style='font-family:"Arial","sans-serif"'><ns0:PersonName><span
style='color:black'>James Hansen</span></ns0:PersonName></span><span
style='color:black'>, PE, LEED AP<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Senior Associate</span><span style='color:black'><o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'><ns0:Street><ns0:address><span
style='color:black'>1010 N. Glebe Rd, Suite 200</span></ns0:address></ns0:Street></span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'><ns0:place><ns0:City><span
style='color:black'>Arlington</span></ns0:City><span style='color:black'>, </span><ns0:State><span
style='color:black'>VA</span></ns0:State><span style='color:black'> </span><ns0:PostalCode><span
style='color:black'>22201-4749</span></ns0:PostalCode></ns0:place></span><span
style='color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:black'>703-338-5754 (Cell)</span><span style='color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:black'>703-243-1200 (Office)</span><span style='color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:black'>703-276-1376 (Fax)</span><span style='color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:teal'><a
href="http://www.ghtltd.com/"><span style='font-size:10.0pt'>www.ghtltd.com</span></a><o:p></o:p></span></p>
<p class=MsoNormal><b><span style='color:#31849B'><o:p> </o:p></span></b></p>
<p class=MsoNormal><o:p> </o:p></p>
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