I would hardly say that residential internal loads are inconsequential. You can get average yearly energy use for refrigerators and washing machines from the energy star website. You'll then have to break it down into power density and a yearly use schedule. Also check out: <br>
<br><a href="http://www.eia.doe.gov/emeu/recs/recs2001/enduse2001/enduse2001.html">http://www.eia.doe.gov/emeu/recs/recs2001/enduse2001/enduse2001.html</a><br><br>for general appliance yearly energy use. Funny thing is that residential apartment lighting seems to be the most difficult parameter to nail down.<br>
<br>--<br>Karen<br><br><div class="gmail_quote">On Tue, Mar 17, 2009 at 9:25 AM, Hernandez, Arturo <span dir="ltr"><<a href="mailto:ahernandez@owpp.com">ahernandez@owpp.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div link="blue" vlink="purple" lang="EN-US">
<div>
<p><b><span style="color: rgb(31, 73, 125);">FOR LEED</span></b><span style="color: rgb(31, 73, 125);"> the 25% is not a requirement. It is more of a guideline
for energy modelers to account for energy consumption on their plug loads. If
the 25% of the Process Load is not reached then you should documentation explaining
your assumptions. For example in a hospital you would typically go over the 25%,
this doesn’t mean you stop at 25%, you should account for whatever
your plug load is and do not have to submit extra documentation (unless asked).
On the other hand if you had a school, you would probably fall short of the 25%
making you submit extra documentation with your assumptions. As long as your
assumptions are reasonable the 25% should not be a big issue. In your case you
would have give your schedule and energy intensity of your plug loads and explain
your assumptions based on a reference.</span></p>
<p><span style="color: rgb(31, 73, 125);"> </span></p>
<div>
<p><b><span style="font-size: 8pt; color: gray;">ARTURO HERNANDEZ, LEED AP</span></b></p>
</div>
<p><span style="color: rgb(31, 73, 125);"> </span></p>
<div>
<div style="border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; border-width: 1pt medium medium; padding: 3pt 0in 0in;">
<p><b><span style="font-size: 10pt;">From:</span></b><span style="font-size: 10pt;">
<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a>
[mailto:<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>Brahme,
Rohini UTRC<br>
<b>Sent:</b> Tuesday, March 17, 2009 7:52 AM<br>
<b>To:</b> Mike Rabena; <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><div><div></div><div class="h5"><br>
<b>Subject:</b> Re: [Equest-users] Electrical loads</div></div></span></p>
</div>
</div><div><div></div><div class="h5">
<p> </p>
<p><span style="color: rgb(153, 51, 102);">There is a requirement of 25% of
the total cost should be misc loads for LEED. </span></p>
<p><span style="color: rgb(153, 51, 102);">Also, when you look at the
breakdown of energy efficient residences, the plug loads is a big chunk.</span></p>
<p><span style="color: rgb(153, 51, 102);">-Rohini</span></p>
<p><span style="color: rgb(153, 51, 102);"> </span></p>
<div>
<div style="border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; border-width: 1pt medium medium; padding: 3pt 0in 0in;">
<p><b><span style="font-size: 10pt;">From:</span></b><span style="font-size: 10pt;">
<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a>
[mailto:<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>Mike
Rabena<br>
<b>Sent:</b> Tuesday, March 17, 2009 6:58 AM<br>
<b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> Re: [Equest-users] Electrical loads</span></p>
</div>
</div>
<p> </p>
<p><span style="color: rgb(31, 73, 125);">The last question is specific to
LEED EA Credit 1</span></p>
<p><span style="color: rgb(31, 73, 125);"> </span></p>
<div>
<p><b><i><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: blue;">Mike Rabena, P.E., LEED AP</span></i></b></p>
<p><b><i><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: rgb(79, 129, 189);"><img alt="PDC LOGO" width="193" height="69"></span></i></b><b><i><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: blue;"></span></i></b></p>
<p><b><i><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: blue;">14011 Park Dr.</span></i></b></p>
<p><b><i><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: blue;">Suite 209</span></i></b></p>
<p><b><i><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: blue;">Tomball, TX 77377</span></i></b></p>
<p><b><i><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: blue;">PH: 281-356-9002- EXT 202</span></i></b></p>
<p><b><i><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: blue;">FX: 281-356-9008</span></i></b></p>
<p><b><i><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: blue;">Cell: 832-493-2066</span></i></b></p>
<p><b><i><span style="color: blue;"> </span></i></b></p>
<p><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: rgb(31, 73, 125);">Website: <a title="blocked::http://www.thepdcgroup.com/
http://www.thepdcgroup.com/"><b><i>www.thepdcgroup.com</i></b></a></span></p>
<p><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: rgb(31, 73, 125);">P.E. Registrations: TX, LA. OH. CO. MS. CA. FL. OK</span></p>
<p><b><i><span style="color: blue;"> </span></i></b><b><i><span style="font-size: 10pt; color: blue;">The information in this email may be confidential and/or
privileged. This email is intended to be reviewed by only the individual(s) or
organization(s) named above. If you are not the intended recipient or an
authorized representative of the intended recipient, you are hereby notified
that any review, dissemination or copying of this email and its attachments, if
any, or the information contained herein is prohibited. If you have received
this email in error, please immediately notify the sender by return email and
delete this email from your system. Thank You</span><span style="color: blue;"></span></i></b></p>
</div>
<p><span style="color: rgb(31, 73, 125);"> </span></p>
<div>
<div style="border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; border-width: 1pt medium medium; padding: 3pt 0in 0in;">
<p><b><span style="font-size: 10pt;">From:</span></b><span style="font-size: 10pt;"> Mike Rabena <br>
<b>Sent:</b> Tuesday, March 17, 2009 5:54 AM<br>
<b>To:</b> '<a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a>'<br>
<b>Subject:</b> Electrical loads</span></p>
</div>
</div>
<p> </p>
<p>When modeling energy use in a residential high-rise I set up
schedules for misc. loads like refrigerator, microwave, oven washer/dryer etc..
I actually lumped these all into 1 schedule, approximated their actual loads
and then applied a daily and weekend schedule to approximate their use.</p>
<p> </p>
<p>My schedules showed pretty low percentages since these
appliances would not be used much.</p>
<p> </p>
<p>I received comments from the client and another modeler that
these loads are inconsequential and should not be incorporated into the model.</p>
<p>Here is the comment</p>
<p><i><u><span style="font-size: 10pt;">Plug-ins
are typically assumed to be the copiers, medical equipment, etc and I would
think refrigerators, microwaves because how do we really measure the use of
such things in a current comprehensive computer modeling situation –
it’s beyond a scope of comparison in a finite way - that’s
why MISC should be junked.</span></u></i></p>
<p> </p>
<p> </p>
<p>Any opinions?</p>
<p> </p>
<p><b><i><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: blue;">Mike Rabena, P.E., LEED AP</span></i></b></p>
<p><b><i><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: rgb(79, 129, 189);"><img alt="PDC LOGO" width="193" border="0" height="69"></span></i></b><b><i><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: blue;"></span></i></b></p>
<p><b><i><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: blue;">14011 Park Dr.</span></i></b></p>
<p><b><i><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: blue;">Suite 209</span></i></b></p>
<p><b><i><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: blue;">Tomball, TX 77377</span></i></b></p>
<p><b><i><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: blue;">PH: 281-356-9002- EXT 202</span></i></b></p>
<p><b><i><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: blue;">FX: 281-356-9008</span></i></b></p>
<p><b><i><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: blue;">Cell: 832-493-2066</span></i></b></p>
<p><b><i><span style="color: blue;"> </span></i></b></p>
<p><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: rgb(31, 73, 125);">Website: <a title="blocked::http://www.thepdcgroup.com/
http://www.thepdcgroup.com/"><b><i>www.thepdcgroup.com</i></b></a></span></p>
<p><span style="font-size: 10pt; font-family: "Times New Roman","serif"; color: rgb(31, 73, 125);">P.E. Registrations: TX, LA. OH. CO. MS. CA. FL. OK</span></p>
<p><b><i><span style="color: blue;"> </span></i></b><b><i><span style="font-size: 10pt; color: blue;">The information in this email may be confidential and/or
privileged. This email is intended to be reviewed by only the individual(s) or
organization(s) named above. If you are not the intended recipient or an
authorized representative of the intended recipient, you are hereby notified
that any review, dissemination or copying of this email and its attachments, if
any, or the information contained herein is prohibited. If you have received
this email in error, please immediately notify the sender by return email and
delete this email from your system. Thank You</span><span style="color: blue;"></span></i></b></p>
<p> </p>
</div></div></div>
</div>
<br>_______________________________________________<br>
Equest-users mailing list<br>
<a href="http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org" target="_blank">http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org</a><br>
To unsubscribe from this mailing list send a blank message to <a href="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG">EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG</a><br>
<br></blockquote></div><br>