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<font size="-1"><font face="Arial">Mr. Hansen,<br>
<br>
Merely another suggestion (though delayed) -- For peak shaving one
could also consider
TES (Thermal Energy Storage) or Phase Change Material (PCM) based
systems!<br>
For cooling dominated buildings, most often the night time use of HVAC
equipment (to store) may make it more efficient due to lower ambient
temperatures to reject heat.<br>
Plus, you could claim energy cost savings with a TOU tariff structure
like Vikram mentioned in the EAc1 credit calculations.<br>
<br>
On the other hand, with respect to the question you asked -- if
the generator (not TES) is an on-site renewable source of energy (say
Solar PV) then the credit should be claimed in the EAc2 documentation.<br>
In this case, the documentation for EAc1 shall merely "quote" energy
generation figures and energy cost averted due to the renewable fuels,
calculated as per </font></font><font size="-1"><font face="Arial">EAc2
credit calculation / submittal.<br>
Of course, one could use standard simulation tools for EAc2
calculations.<br>
<br>
Viikram,<br>
Little seems to have changed!<br>
Not talking about the landscape, here . . . but your wry sense of
humor! <i>;</i>-)<br>
Thanks.<br>
<br>
~Neeraj<br>
<br>
Neeraj Kapoor<br>
t: +91.99581.70018<br>
Kalpakrit Sustainable Environments Pvt. Ltd.<br>
New Delhi, India<br>
</font></font><br>
Vikram Sami wrote:
<blockquote
cite="mid:55BA83825A482144A8637F9CAA981F7615540428@las-mail.lordaecksargent.internal"
type="cite">
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<div class="Section1">
<p class="MsoNormal"><span style="color: rgb(0, 0, 180);">As far as I
know, you can take
credit for this for LEED EAc1. The credit is based on energy cost and
not BTUs,
so assuming you have a TOU rate structure, you should show some savings
there. There are potentially some significant environmental benefits
from peak
shavings too – most utilities have larger plants that run full time for
a
base load. They then supply the additional loads with peaking plants –
either natural gas or diesel powered. Cutting demand reduces the need
for
peakers to come online. </span></p>
<p class="MsoNormal"><span style="color: rgb(0, 0, 180);"> </span></p>
<p class="MsoNormal"><span style="color: rgb(0, 0, 180);"> </span></p>
<p class="MsoNormal"><span style="color: rgb(0, 0, 180);"><br>
</span><span style="color: rgb(0, 0, 180);"></span></p>
<p class="MsoNormal"><span style="color: rgb(0, 0, 180);"> </span></p>
<p class="MsoNormal"><span style="color: rgb(0, 0, 180);">Of course –
Coal power is
the ultimate in peak shaving ;-)</span></p>
<p class="MsoNormal"><span style="color: rgb(0, 0, 180);"> </span></p>
<div>
<p class="MsoNormal" style=""><b><span
style="font-size: 12pt; font-family: "Garamond","serif"; color: black;">Vikram
Sami,</span></b><span
style="font-size: 12pt; font-family: "Times New Roman","serif"; color: rgb(0, 0, 180);">
</span><span
style="font-size: 12pt; font-family: "Garamond","serif"; color: black;">LEED
AP</span><span
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<br>
</span><span
style="font-size: 12pt; font-family: "Garamond","serif"; color: black;">Direct
Phone 404-253-1466 | Direct Fax 404-253-1366</span><span
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</span></p>
<p class="MsoNormal" style=""><b><span
style="font-size: 12pt; font-family: "Garamond","serif"; color: maroon;">L</span></b><b><span
style="font-size: 10pt; font-family: "Garamond","serif"; color: maroon;">ORD</span></b><b><span
style="font-size: 12pt; font-family: "Garamond","serif"; color: maroon;">,
A</span></b><b><span
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& S</span></b><b><span
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A</span></b><b><span
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<br>
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</div>
<p class="MsoNormal"><span style="color: rgb(0, 0, 180);"> </span></p>
<div>
<div
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<p class="MsoNormal"><b><span
style="font-size: 10pt; font-family: "Tahoma","sans-serif";">From:</span></b><span
style="font-size: 10pt; font-family: "Tahoma","sans-serif";">
<a class="moz-txt-link-abbreviated" href="mailto:bldg-sim-bounces@lists.onebuilding.org">bldg-sim-bounces@lists.onebuilding.org</a>
[<a class="moz-txt-link-freetext" href="mailto:bldg-sim-bounces@lists.onebuilding.org">mailto:bldg-sim-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>James
Hansen<br>
<b>Sent:</b> Monday, November 23, 2009 11:17 AM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:bldg-sim@lists.onebuilding.org">bldg-sim@lists.onebuilding.org</a><br>
<b>Subject:</b> [Bldg-sim] Fuel cells and peak shaving</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal">We’ve got a client that wants to look at ways to
peak
shave using generators and/or fuel cells. For LEED EAc1: are those
acceptable ways to show energy savings? If I set up a generator in
eQuest
(or using ECM if I can’t figure the generators out), can I have a base
utility rate for the baseline building? Or do I have to have generators
/
fuel cells in both models?</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Thanks in advance,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><b><span
style="font-size: 12pt; font-family: "Arial","sans-serif"; color: teal;">GHT
Limited<br>
</span></b><b><span style="font-family: "Arial","sans-serif";"><span
style="color: black;">James Hansen</span></span></b><b><span
style="font-size: 12pt; font-family: "Times New Roman","serif"; color: black;">,
PE, LEED AP</span></b></p>
<p class="MsoNormal"><b><span
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