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<p class=MsoNormal><span style='color:black'>When making a partial qualifier
analysis, the other aspects of the proposed building are relaxed to match the
baseline building.<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'>If you are attempting an HVAC partial
qualifier for instance, the proposed and baseline building would be identical
for lighting design and envelope design, and you’d have to achieve 20%
under the newer rules. (16-2/3% for a building partially qualifying under
the old rules.)<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'>The 20% (16-2/3%) will then be
wholly attributable to the HVAC systems. To partially qualify for
envelope, you’d repeat this process in a second set of simulations with
the proposed envelope, but baseline lighting and HVAC while claiming 10% savings
(16-2/3%). Etc.<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'>If your client had a
whole-building qualifier, then you would have all different aspects of your
proposed design incorporated, but have to achieve 50% savings. The
savings do not have to be allocated to each partial area in this case.<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'>It won’t be too hard to make
a spreadsheet to show the savings. Similar to what you might have done
for any other ECB or Appendix G analysis.<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='font-size:11.0pt;font-family:"Tahoma","sans-serif";
color:black'>____________________________________________________________________________________________________________________<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:gray'>David Eldridge, PE<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:gray'>LEED® AP<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Tahoma","sans-serif";
color:black'><br>
</span><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:#365F91'>Grumman/Butkus Associates</span></b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif";color:gray'> | </span><span style='font-size:
10.0pt;font-family:"Tahoma","sans-serif";color:#8DB3E2'>820 Davis Street, STE
300 | Evanston, IL 60201 | Ph: (847) 328-3555 | Fax: (847) 328-4550</span><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:gray'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:gray'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:gray'>Energy Consultants and Design Engineers</span><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:black'><br>
</span><span style='font-size:11.0pt;font-family:"Tahoma","sans-serif";
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>
<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>Nick
Anderson<br>
<b>Sent:</b> Tuesday, January 06, 2009 3:18 PM<br>
<b>To:</b> bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> [Bldg-sim] EPACT Simulations Questions<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Building simulations for EPACT credits require that the
building energy and power costs be reduced by 50%. The tax credit has
been extended to 2013.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>The energy and power cost savings must come from a 16-2/3%
reduction in three categories: Building envelope, HVAC and SHW, and
Lighting. There is a guideline called “Energy Savings
Modeling and Inspection Guidelines for Commercial Building Federal Tax Deductions”
Second Edition, which is Technical Report NREL/TP-550-40467, May 2007. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>In this guideline, they describe the technique on pages 3
and 4 to calculate the costs and % cost reductions due to the Lighting, and
HVAC/DHW electricity use. Nowhere does it describe how they want you to
calculate the cost and cost reductions due to the building envelope, despite
the fact that 16-2/3% of the energy savings are required to come from this
category.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Does anybody know what to do for the building envelope and
the EPACT deduction? <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Has anyone seen a spreadsheet available already created to
do the cost allocations based on the outputs from a simulation program (in my
case Trane Trace 700)? There are quite a few available for the simple
“Interim Lighting Rule” but none that I have found for the full
model.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Also, in April 2008, an IRS Notice 2008-40 called
“Amplification of Notice 2006-52” describes being allowed to change
the portion of the savings for the building envelope to 10% if the Lighting and
HVAC/DHW savings are increased to 20% each (for a total remaining at 50% energy
and power cost reduction).<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Has anybody seen this used? I have searched around for
examples of EPACT and all places still reference the 16-2/3% thresholds.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Lucida Sans Unicode","sans-serif"'>Nick
Anderson</span></b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
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