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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>The metric in LEED (ASHRAE 90.1) is energy cost not energy
usage. I am certain that ice storage systems have been submitted and approved
in LEED projects. As currently set up you don’t get full credit since both
models must use the same rate structure but you could get some credit against standard
cooling systems if the rate structure favors off-peak usage.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Marcus Sheffer<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>7group<o:p></o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
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color:#1F497D'><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>Julia
Beabout<br>
<b>Sent:</b> Tuesday, June 09, 2009 5:09 PM<br>
<b>To:</b> BLDG-SIM<br>
<b>Subject:</b> [Bldg-sim] LEED EAcr1 and ice storage?<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Hi All,<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Has anyone successfully submitted an energy model to LEED for
NC, EAcr1 compliance that utilized an ice storage system for cooling?<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'> <o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>I'm just curious if they considered this a valid way to meet EAcr1
since even though these systems save money (which is the basis for
EAcr 1 compliance), they frequently use the same or even more energy than a
standard chiller plant/system design. In other words, in principle, if
your proposed building uses the same or more energy than your baseline, but
shows a $ savings relative to the baseline, is that still valid.<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'> <o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>We're considering looking at ice storage for a LEED project I'm
working on. But, before we run down that route, I'm trying to determine
if LEED considers it an acceptable way to meet EAcr1 and if anyone has been
successfully awarded LEED certification with it. I tried
searching the CIRs, but the LEED search engine didn't return any
matches. There was a little traffic on Bldg-sim on it, but
that was pretty old (2005). I also sent LEED customer service
the questions along with a brief description of ice storage and the
not-so-green as well as green aspects of it. But, it was obvious by
their reply that they had no idea what I was talking about?!?!? <o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'> <o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Any experience you all have regarding ice storage
and successful LEED submittals would be great.<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Thanks.<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Julia<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'> <o:p></o:p></span></p>
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