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<DIV dir=ltr align=left><SPAN class=081323618-05032007><FONT
face="Lucida Console" color=#0000ff size=2>Varkie,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=081323618-05032007>
<DIV><FONT face="Lucida Console" color=#0000ff size=2><SPAN
class=971281318-05032007></SPAN></FONT> </DIV>
<DIV><SPAN class=971281318-05032007><FONT face="Lucida Console"><FONT
color=#0000ff><FONT size=2>Something we have been noticing in schools lately
is <SPAN class=081323618-05032007>a </SPAN>high receptacle load, which we
believe is attributable to increased usage of computers<SPAN
class=081323618-05032007>, approaching and in some areas exceeding 5 W per
square foot -- the kinds of loads I used to figure for "technology
intensive" office areas just a few years
ago.</SPAN></FONT></FONT></FONT></SPAN></DIV>
<DIV><FONT face="Lucida Console" color=#0000ff size=2><SPAN
class=971281318-05032007></SPAN></FONT> </DIV>
<DIV><FONT face="Lucida Console" color=#0000ff size=2><SPAN
class=971281318-05032007>In researching an energy question for a school today, I
came across <SPAN class=081323618-05032007>this web page and </SPAN>case
study which I thought was relevant to your question<SPAN
class=081323618-05032007>:</SPAN></SPAN></FONT></DIV>
<DIV><FONT face="Lucida Console" color=#0000ff size=2><SPAN
class=971281318-05032007><SPAN
class=081323618-05032007></SPAN></SPAN></FONT> </DIV>
<DIV><FONT face="Lucida Console" color=#0000ff size=2><SPAN
class=971281318-05032007><SPAN class=081323618-05032007><A
href="http://www.energystar.gov/index.cfm?c=power_mgt.pr_power_management">http://www.energystar.gov/index.cfm?c=power_mgt.pr_power_management</A></SPAN></SPAN></FONT></DIV>
<DIV><FONT face="Lucida Console" color=#0000ff size=2><SPAN
class=971281318-05032007><SPAN
class=081323618-05032007></SPAN></SPAN></FONT> </DIV>
<DIV><FONT size=+0><SPAN class=971281318-05032007><A
href="http://www.energystar.gov/ia/products/power_mgt/North_Thurston_Case_Study.pdf"><FONT
face="Lucida Console"><FONT
size=2>http://www.energystar.gov/ia/products/power_mgt/North_Thurston_Case_Study.pdf</FONT></FONT></A></SPAN></FONT></DIV>
<DIV><FONT face="Lucida Console" color=#0000ff size=2><SPAN
class=971281318-05032007></SPAN></FONT> </DIV>
<DIV><FONT face="Lucida Console" color=#0000ff size=2><SPAN
class=971281318-05032007>Essentially they summarize how<SPAN
class=081323618-05032007>, by consistently implementing </SPAN>power management
on computer monitors and CPUs using a simple utility program, <SPAN
class=081323618-05032007>a</SPAN> cost savings of an estimated $15-$30 per
computer per year<SPAN class=081323618-05032007> can be realized (on personal
workstations I would add, not systems required to be continuously
online)</SPAN>. Multiplied across thousands of computers, the bottom line
annual savings can be substantial.</SPAN></FONT></DIV>
<DIV><FONT face="Lucida Console" color=#0000ff size=2><SPAN
class=971281318-05032007></SPAN></FONT> </DIV>
<DIV><FONT face="Lucida Console"><FONT color=#0000ff><FONT size=2><SPAN
class=971281318-05032007><SPAN class=081323618-05032007>How to account for this
in energy modeling software I have a general
idea:</SPAN></SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face="Lucida Console"><FONT color=#0000ff><FONT size=2><SPAN
class=971281318-05032007><SPAN
class=081323618-05032007></SPAN></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face="Lucida Console"><FONT color=#0000ff><FONT size=2><SPAN
class=971281318-05032007><SPAN class=081323618-05032007>1) Assign the baseline
receptacle load to "occupied hours"; e.g. 5 W/SF 'always
on'</SPAN></SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face="Lucida Console"><FONT color=#0000ff><FONT size=2><SPAN
class=971281318-05032007><SPAN class=081323618-05032007>2) Assign a
diversified receptacle load schedule to the alternate
analyses</SPAN></SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face="Lucida Console"><FONT color=#0000ff><FONT size=2><SPAN
class=971281318-05032007><SPAN
class=081323618-05032007></SPAN></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face="Lucida Console"><FONT color=#0000ff><FONT size=2><SPAN
class=971281318-05032007><SPAN class=081323618-05032007>But quantifying the
diversified load schedule is the hard part -- it will no doubt vary
significantly depending on the occupancy. Though not fully developed,
this may provide a starting point for one method to reduce process
electrical loads in a LEED analysis.</SPAN></SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face="Lucida Console"><FONT color=#0000ff><FONT size=2><SPAN
class=971281318-05032007><SPAN
class=081323618-05032007></SPAN></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face="Lucida Console" color=#0000ff size=2><SPAN
class=971281318-05032007><SPAN class=081323618-05032007><SPAN
class=518430319-05032007></SPAN></SPAN></SPAN></FONT> </DIV>
<DIV><FONT face="Lucida Console" color=#0000ff size=2><SPAN
class=971281318-05032007><SPAN class=081323618-05032007><SPAN
class=518430319-05032007>Regards</SPAN></SPAN></SPAN></FONT></DIV></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=081323618-05032007><FONT
face="Lucida Console" color=#0000ff size=2></FONT></SPAN> </DIV><FONT
face="Lucida Console" color=#0000ff size=2>Brandon Nichols,
PE<BR>Mechanical<BR>HARGIS ENGINEERS<BR>600 Stewart St<BR>Suite 1000<BR>Seattle,
WA 98101<BR>d | 206.436.0400 c | 206.228.8707<BR>o | 206.448.3376 f |
206.448.4450<BR><A
href="http://www.hargis.biz">www.hargis.biz</A><BR></FONT><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> BLDG-SIM@gard.com
[mailto:BLDG-SIM@gard.com] <B>On Behalf Of </B>Varkie Thomas<BR><B>Sent:</B>
Monday, March 05, 2007 7:14 AM<BR><B>To:</B>
BLDG-SIM@gard.com<BR><B>Subject:</B> [BLDG-SIM] Process Loads and
LEED<BR></FONT><BR></DIV>
<DIV></DIV>
<P>LEED-NC Version 2.2 page 173 "Optimize Energy Performance" states
"Demonstrate a <STRONG><FONT color=red>percentage</FONT></STRONG> improvement in
the proposed building performance -- " and "For the purpose of this
analysis, process energy is considered to include, but is not limited to, office
and general miscellaneous equipment, computers, elevators & escalators,
kitchen cooking & refrigeration, laundry washing & drying --- "</P>
<P>On page 174 "For EA Credit 1, process loads shall be identical for both the
baseline building performance and the proposed building performance"</P>
<P>Assuming the same space process load is used in the baseline and
proposed, then a building with a receptacle load density of say 1.0 w/sf
will produce a much greater percent savings compared to the same building with a
receptacle load density of say 6 w/sf.</P>
<P>Page 173 "must comply with the mandatory provisions (Sections --- ) in
Standard 90.1-2004 (without amendments)" There is no mention of Standards
62 for ventilation & occupancy density or Standard 55 for indoor
comfort conditions. Does this mean that the baseline can be based on the
proposed ventilation, occupancy density and indoor comfort conditions?
According to Standard 62-2004 the occupancy density for general office space is
200 sf/P (from 142 sf/P in 62-2001 and I think 100 sf/P earlier). This
produces a low percent system outdoor air and energy conservation measures such
as "occupancy based ventilation" and "outdoor air to relief air heat recovery"
have little effect. Std 62-2004 (also Std 90.1-2004 for lighting) provides
design criteria for a limited number of space types such as a prison cell
(improved from 50 sf/P & 20 cfm/P in 62-2001 to 40 sf/P & 10 cfm/P in
62-2004) . This makes it difficult to determine baselin e conditions
using Std 62.</P>
<P>I am looking at a financial institution building with high occupancy and
receptacle load densities.</P><PRE>==================
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