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<DIV dir=ltr>
<DIV style="FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: 12pt">
<DIV>Nick,</DIV>
<DIV> </DIV>
<DIV>Our AMY files are supposed to be complete and ready to run in eQuest (and
other modeling systems). If there is anything missing or could be
improved, we want to hear about it so we can fix. It is one of the reasons
we have been giving away files early on. For example James Dirkes’s
requested to have the start day in the header be the actual day for that file,
so we have coded this and it will be in our next upgrade. The processing on 2010
and 2011 is going well should have at least test AMY files for those ready end
of this week (with luck). When this is done we will have the continuous
stream from current conditions back thru recent history to deep history.</DIV>
<DIV> </DIV>
<DIV>Thanks for the question,</DIV>
<DIV> </DIV>
<DIV>Chuck</DIV>
<DIV> </DIV>
<DIV
style="FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: 12pt">_____________________<BR>Chuck
Khuen<BR>Principal<BR>Weather Analytics
Inc.<BR>www.weatheranalytics.com<BR>781-856-5383</DIV>
<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none">
<DIV style="FONT: 10pt tahoma">
<DIV> </DIV>
<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A title=ncaton@smithboucher.com
href="mailto:ncaton@smithboucher.com">Nick Caton</A> </DIV>
<DIV><B>Sent:</B> Friday, April 29, 2011 6:51 PM</DIV>
<DIV><B>To:</B> <A title=chuck.khuen@wxaglobal.com
href="mailto:chuck.khuen@wxaglobal.com">Chuck Khuen</A> ; <A
title=klgardiner@flowgroup.ca href="mailto:klgardiner@flowgroup.ca">Katherine
Louman-Gardiner</A> ; <A title=jim@buildingperformanceteam.com
href="mailto:jim@buildingperformanceteam.com">James V Dirkes II, PE</A> </DIV>
<DIV><B>Subject:</B> RE: [Bldg-sim] eQuest - Model
verification</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none">
<DIV class=WordSection1>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Chuck
I’m curious:<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Are
Weather Analytics’ AMY files fully compatible, complete and “ready-to-run” for
users of eQuest 3.64? Are there any fields of data for that may be
incomplete or require post-processing in some fashion? I feel like I’m
hearing mixed-messages on that front…<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Thanks
very much, and don’t hesitate to copy the list in response if you feel the
answer would be useful to others =)!<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">~Nick<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN> </P>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><IMG
id=Picture_x0020_1 alt=cid:489575314@22072009-0ABB
src="cid:0463A221181C4977AF56CA5A47B14C0D@CharlesPC" width=119
height=37></SPAN><B><SPAN
style="FONT-FAMILY: 'Stylus BT','sans-serif'; COLOR: #2d4d5e; FONT-SIZE: 11pt"><o:p></o:p></SPAN></B></P>
<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Stylus BT','sans-serif'; COLOR: #2d4d5e; FONT-SIZE: 11pt"><o:p></o:p></SPAN></B> </P>
<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Stylus BT','sans-serif'; COLOR: #2d4d5e; FONT-SIZE: 11pt">NICK
CATON, E.I.T.</SPAN></B><B><SPAN
style="FONT-FAMILY: 'Stylus BT','sans-serif'; COLOR: #2d4d5e"><o:p></o:p></SPAN></B></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #cc9900; FONT-SIZE: 7.5pt">PROJECT
ENGINEER<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #2d4d5e; FONT-SIZE: 10pt">Smith
& Boucher Engineers</SPAN><SPAN
style="COLOR: #cc9900; FONT-SIZE: 7.5pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #2d4d5e; FONT-SIZE: 10pt">25501
west valley parkway<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #2d4d5e; FONT-SIZE: 10pt">olathe
ks 66061<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #2d4d5e; FONT-SIZE: 10pt">direct
913 344.0036<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #2d4d5e; FONT-SIZE: 10pt">fax
913 345.0617<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><A
title=blocked::www.smithboucher.com href="wlmailhtml:www.smithboucher.com"><SPAN
style="FONT-SIZE: 10pt">www.smithboucher.com</SPAN></A></SPAN><U><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: blue; FONT-SIZE: 10pt">
</SPAN></U><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN></P></DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN> </P>
<DIV>
<DIV
style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt">From:</SPAN></B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt">
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <B>On Behalf Of </B>Chuck
Khuen<BR><B>Sent:</B> Friday, April 29, 2011 3:14 PM<BR><B>To:</B>
bldg-sim@lists.onebuilding.org<BR><B>Subject:</B> Re: [Bldg-sim] eQuest - Model
verification<o:p></o:p></SPAN></P></DIV></DIV>
<P class=MsoNormal><o:p></o:p> </P>
<DIV>
<DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: black">As to James posting on
this issue the weather data platform we are just finishing has cleaned up and
localized weather input and can deliver a continuously updated stream of recent
history and current conditions with direct web services access to any and all
data. In other words, we have the weather data side of the client’s desire
all set. We are very happy to cooperate with any efforts to integrate,
assimilate or utilize this in a model or models. Indeed we are looking for
partners here, as we believe this is going to be an increasingly important
element in the solution to upgrading existing buildings. So if anyone
wants to take on this part of the problem for </SPAN><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: black; FONT-SIZE: 11pt">Katherine,
we will supply the weather data portion for free.</SPAN><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: black"><o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: black"> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: black">Chuck<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: black"> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: black">_____________________<BR>Chuck
Khuen<BR>Principal<BR>Weather Analytics
Inc.<BR>www.weatheranalytics.com<BR>781-856-5383<o:p></o:p></SPAN></P></DIV>
<DIV>
<DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: black; FONT-SIZE: 10pt"> <o:p></o:p></SPAN></P></DIV>
<DIV>
<DIV>
<P style="BACKGROUND: whitesmoke" class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: black; FONT-SIZE: 10pt">From:</SPAN></B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: black; FONT-SIZE: 10pt"> <A
title=jim@buildingperformanceteam.com
href="mailto:jim@buildingperformanceteam.com">James V Dirkes II, PE</A>
<o:p></o:p></SPAN></P></DIV>
<DIV>
<P style="BACKGROUND: whitesmoke" class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: black; FONT-SIZE: 10pt">Sent:</SPAN></B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: black; FONT-SIZE: 10pt">
Friday, April 29, 2011 12:02 PM<o:p></o:p></SPAN></P></DIV>
<DIV>
<P style="BACKGROUND: whitesmoke" class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: black; FONT-SIZE: 10pt">To:</SPAN></B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: black; FONT-SIZE: 10pt"> <A
title=bldg-sim@lists.onebuilding.org
href="mailto:bldg-sim@lists.onebuilding.org">bldg-sim@lists.onebuilding.org</A>
<o:p></o:p></SPAN></P></DIV>
<DIV>
<P style="BACKGROUND: whitesmoke" class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: black; FONT-SIZE: 10pt">Subject:</SPAN></B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: black; FONT-SIZE: 10pt"> Re:
[Bldg-sim] eQuest - Model verification<o:p></o:p></SPAN></P></DIV></DIV></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: black"> <o:p></o:p></SPAN></P></DIV></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">FYI,
Check out <A
href="http://www.Weatheranalytics.com">www.Weatheranalytics.com</A> for
“AMY” (Actual Meteorological Year) data. They’re a new player in this
arena and seem to have their act together. <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: black"> </SPAN><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: black"> </SPAN><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN></P>
<DIV>
<P style="TEXT-ALIGN: center" class=MsoNormal align=center><B><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 13.5pt">The
Building Performance Team<BR></SPAN></B><B><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">James
V. Dirkes II, P.E., LEED AP, BEMP<BR></SPAN></B><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">1631
Acacia Drive NW<BR>Grand Rapids, MI 49504<BR>616 450
8653<o:p></o:p></SPAN></P></DIV>
<P class=MsoNormal><SPAN style="COLOR: black"> </SPAN><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN></P>
<DIV>
<DIV
style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: black; FONT-SIZE: 10pt">From:</SPAN></B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: black; FONT-SIZE: 10pt"> Jorge
Torres-Coto [mailto:jtorres-coto@mbo1.com] <BR><B>Sent:</B> Friday, April 29,
2011 10:49 AM<BR><B>To:</B> 'Nick Caton'; 'James V Dirkes II, PE'; 'Karen
Walkerman'; 'Carol Gardner'<BR><B>Cc:</B>
bldg-sim@lists.onebuilding.org<BR><B>Subject:</B> RE: [Bldg-sim] eQuest - Model
verification<o:p></o:p></SPAN></P></DIV></DIV>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: black"> <o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: navy; FONT-SIZE: 10pt">5% is a
really tight number we have been forced to work with on come retro commissioning
projects in the past, with 10% being the norm on an annual and monthly basis for
overall building energy use. Anything stricter than those numbers is
unrealistic (again for the overall building).<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: black"> </SPAN><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: navy; FONT-SIZE: 10pt"><o:p></o:p></SPAN></P>
<DIV>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: navy; FONT-SIZE: 10pt">Jorge E. Torres Coto </SPAN><SPAN
style="BORDER-BOTTOM: windowtext 1pt; BORDER-LEFT: windowtext 1pt; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; LAYOUT-GRID-MODE: line; PADDING-RIGHT: 0in; BACKGROUND: black; COLOR: black; FONT-SIZE: 1pt; BORDER-TOP: windowtext 1pt; BORDER-RIGHT: windowtext 1pt; PADDING-TOP: 0in"> </SPAN><SPAN
style="COLOR: navy; FONT-SIZE: 10pt"><IMG id=_x0000_i1025 border=0
src="cid:5EA3728C00A948628E3C755D1D09C358@CharlesPC" width=39
height=39><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: navy; FONT-SIZE: 10pt">4830 Viewridge Ave.<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: navy; FONT-SIZE: 10pt" lang=ES-MX>San Diego, CA
92123<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: navy; FONT-SIZE: 10pt"
lang=ES-MX>p
858.751.0933<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: navy; FONT-SIZE: 10pt"
lang=ES-MX>f
858.751.0937<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: navy; FONT-SIZE: 10pt">c
858.688.6088<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN style="COLOR: navy"><IMG
id=_x0000_i1026 border=0 src="cid:8ED99939953B450B902808A6083D3F1B@CharlesPC"
width=181 height=159></SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P></DIV>
<DIV>
<DIV style="MARGIN-LEFT: 0.5in">
<DIV style="TEXT-ALIGN: center" class=MsoNormal align=center><SPAN
style="COLOR: black">
<HR align=center SIZE=2 width="100%">
</SPAN></DIV></DIV>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: black; FONT-SIZE: 10pt">From:</SPAN></B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: black; FONT-SIZE: 10pt">
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <B>On Behalf Of </B>Nick
Caton<BR><B>Sent:</B> Friday, April 29, 2011 7:42 AM<BR><B>To:</B> James V
Dirkes II, PE; Karen Walkerman; Carol Gardner<BR><B>Cc:</B>
bldg-sim@lists.onebuilding.org<BR><B>Subject:</B> Re: [Bldg-sim] eQuest - Model
verification</SPAN><SPAN style="COLOR: black"><o:p></o:p></SPAN></P></DIV>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: black"> <o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #365f91; FONT-SIZE: 11pt">I
know I have less experience calibrating models than some other respondents, but
I’ll share my perspectives as well:<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: black"> </SPAN><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"
lang=EN-CA><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"
lang=EN-CA>It is easy to adjust occupancy schedules / lighting loads in eQuest,
but it requires the end-user knows the program. If the end-user is
inexperienced with eQuest or any other simulation program, then there is no
“easily modifiable” model you can provide.<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: black"> </SPAN><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #365f91; FONT-SIZE: 11pt"
lang=EN-CA><o:p></o:p></SPAN></P>
<P style="TEXT-INDENT: -0.25in; MARGIN-LEFT: 1in; mso-list: l0 level1 lfo2"
class=MsoListParagraph><SPAN style="COLOR: #365f91" lang=EN-CA><SPAN
style="mso-list: ignore">1)<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><SPAN style="COLOR: #365f91" lang=EN-CA>Even if I manage to
put in daily occupant and fan schedules based on actual use, will the model be
accurate enough to take me within 1%?<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: black"> </SPAN><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #365f91; FONT-SIZE: 11pt"
lang=EN-CA><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #365f91; FONT-SIZE: 11pt"
lang=EN-CA>With regard to historical modeling, showing any deadband of accuracy
to known costs/consumptions is *technically* possible given enough information
and time… That said, falling within 1% of any holistic measure, even on an
annual basis, before “refining the unknowns” would probably happen only by very
lucky/happy coincidence. It’s fair to say that in a relative sense, some
buildings operate much more regularly and predictably than others, and for these
cases you or a client might reasonably expect a tighter deadband. Asking
what is “accurate enough” is like asking “what’s reasonable,” and the answer is
that it depends on what info/time you have. There are always “unknowable”
variables that can play a big role in your end-results (example: what is
the actual leakiness of a 35 year old envelope?).<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 1in" class=MsoListParagraph><SPAN
style="COLOR: black"> </SPAN><SPAN style="COLOR: #365f91"
lang=EN-CA><o:p></o:p></SPAN></P>
<P style="TEXT-INDENT: -0.25in; MARGIN-LEFT: 1in; mso-list: l0 level1 lfo2"
class=MsoListParagraph><SPAN style="COLOR: #365f91" lang=EN-CA><SPAN
style="mso-list: ignore">2)<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><SPAN style="COLOR: #365f91" lang=EN-CA>We have been asked
to remove plug loads (both for consumption purposes and cooling loads).
Will this be too big of an assumption to get any accuracy out of the model in
the future?<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: black"> </SPAN><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #365f91; FONT-SIZE: 11pt"
lang=EN-CA><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #365f91; FONT-SIZE: 11pt"
lang=EN-CA>Depends on your building, but for most buildings plug loads are a
significant fraction of consumption/internal loads. <o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 1in" class=MsoListParagraph><SPAN
style="COLOR: black"> </SPAN><SPAN style="COLOR: #365f91"
lang=EN-CA><o:p></o:p></SPAN></P>
<P style="TEXT-INDENT: -0.25in; MARGIN-LEFT: 1in; mso-list: l0 level1 lfo2"
class=MsoListParagraph><SPAN style="COLOR: #365f91" lang=EN-CA><SPAN
style="mso-list: ignore">3)<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><SPAN style="COLOR: #365f91" lang=EN-CA>How do I modify the
weather input file?<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: black"> </SPAN><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #365f91; FONT-SIZE: 11pt"
lang=EN-CA><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #365f91; FONT-SIZE: 11pt"
lang=EN-CA>I saved the attached email from David Reddy for the next time I need
to tackle “actual weather.” My attempts thus far haven’t been terribly
successful, so I have no “go-to” procedures to share just yet. I have
heard reference from those who appear in the know to macro/VBA-heavy excel
spreadsheets which can automate the workflow to one extent or another, but I’ve
not yet seen one with my own eyes. I have yet to hear of any program that
can “easily” incorporate recently recorded weather data.
<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 1in" class=MsoListParagraph><SPAN
style="COLOR: black"> </SPAN><SPAN style="COLOR: #365f91"
lang=EN-CA><o:p></o:p></SPAN></P>
<P style="TEXT-INDENT: -0.25in; MARGIN-LEFT: 1in; mso-list: l0 level1 lfo2"
class=MsoListParagraph><SPAN style="COLOR: #365f91" lang=EN-CA><SPAN
style="mso-list: ignore">4)<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><SPAN style="COLOR: #365f91" lang=EN-CA>Are there any other
ideas I’m missing that will help us validate a model as an absolute measure of
actual building energy consumption?<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: black"> </SPAN><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #365f91; FONT-SIZE: 11pt"
lang=EN-CA><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #365f91; FONT-SIZE: 11pt"
lang=EN-CA>Generally: the only “absolute measure of actual building
consumption” will be the utility bills. Something about the 1% number
tells me you or your client might be trying to hammer a nail with a screwdriver…
Energy models are great for looking to the past to make decisions that
acknowledge the unknowns of the future, but if the real goal is to know the
actual energy usage on an hourly basis – why not set up some sub-meters and
track them? While meters/bills measure energy usage and energy models can
use that information to make predictions, models don’t determine bills – it
doesn’t work in reverse!<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: black"> </SPAN><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"
lang=EN-CA><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"
lang=EN-CA>PS: For all the work you might put into calibrating a model
with historical weather and other known data, keep perspective that your model
will only ever be that accurate for behaviour in that year. The moment
anyone wants to use this model predictively (for the future), you probably
should swap back to TMY weather data and embrace the inherent
unknowns.<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: black"> </SPAN><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"
lang=EN-CA><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"
lang=EN-CA>~Nick<o:p></o:p></SPAN></P>
<DIV>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><IMG
id=Picture_x005f_x0020_1 border=0 alt=cid:489575314@22072009-0ABB
src="cid:0463A221181C4977AF56CA5A47B14C0D@CharlesPC" width=119
height=37></SPAN><B><SPAN
style="FONT-FAMILY: 'Stylus BT','sans-serif'; COLOR: #2d4d5e; FONT-SIZE: 11pt"><o:p></o:p></SPAN></B></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: black"> </SPAN><B><SPAN
style="FONT-FAMILY: 'Stylus BT','sans-serif'; COLOR: #2d4d5e; FONT-SIZE: 11pt"><o:p></o:p></SPAN></B></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Stylus BT','sans-serif'; COLOR: #2d4d5e; FONT-SIZE: 11pt">NICK
CATON, E.I.T.</SPAN></B><B><SPAN
style="FONT-FAMILY: 'Stylus BT','sans-serif'; COLOR: #2d4d5e"><o:p></o:p></SPAN></B></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #cc9900; FONT-SIZE: 7.5pt">PROJECT
ENGINEER<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #2d4d5e; FONT-SIZE: 10pt">Smith
& Boucher Engineers</SPAN><SPAN
style="COLOR: #cc9900; FONT-SIZE: 7.5pt"><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #2d4d5e; FONT-SIZE: 10pt">25501
west valley parkway<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #2d4d5e; FONT-SIZE: 10pt">olathe
ks 66061<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #2d4d5e; FONT-SIZE: 10pt">direct
913 344.0036<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #2d4d5e; FONT-SIZE: 10pt">fax
913 345.0617<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><A
title=blocked::www.smithboucher.com href="wlmailhtml:www.smithboucher.com"><SPAN
style="FONT-SIZE: 10pt">www.smithboucher.com</SPAN></A></SPAN><U><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: blue; FONT-SIZE: 10pt">
</SPAN></U><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN></P></DIV>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: black"> </SPAN><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN></P>
<DIV>
<DIV
style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: black; FONT-SIZE: 10pt">From:</SPAN></B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: black; FONT-SIZE: 10pt">
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <B>On Behalf Of </B>James V
Dirkes II, PE<BR><B>Sent:</B> Thursday, April 28, 2011 7:12 PM<BR><B>To:</B>
'Karen Walkerman'; 'Carol Gardner'<BR><B>Cc:</B>
bldg-sim@lists.onebuilding.org<BR><B>Subject:</B> Re: [Bldg-sim] eQuest - Model
verification<o:p></o:p></SPAN></P></DIV></DIV>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: black"> <o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Weighing
in late on this….<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">If
I get >80% R-squared correlation, I think I’m doing well!
<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">There
are so many unknowns, including the normal situation that the client doesn’t
know their own operating schedules, occupancy patterns, or maintenance /
calibration procedures….<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: black"> </SPAN><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN></P>
<P style="TEXT-ALIGN: center; MARGIN-LEFT: 0.5in" class=MsoNormal
align=center><B><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 13.5pt">The
Building Performance Team<BR></SPAN></B><B><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">James
V. Dirkes II, P.E., LEED AP, BEMP<BR></SPAN></B><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">1631
Acacia Drive NW</SPAN><SPAN style="COLOR: black"><BR></SPAN><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Grand
Rapids, MI 49504</SPAN><SPAN style="COLOR: black"><BR></SPAN><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">616
450 8653<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="COLOR: black"> </SPAN><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN></P>
<DIV
style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<P style="MARGIN-LEFT: 1in" class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: black; FONT-SIZE: 10pt">From:</SPAN></B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; COLOR: black; FONT-SIZE: 10pt">
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <B>On Behalf Of </B>Karen
Walkerman<BR><B>Sent:</B> Thursday, April 28, 2011 3:31 PM<BR><B>To:</B> Carol
Gardner<BR><B>Cc:</B> bldg-sim@lists.onebuilding.org<BR><B>Subject:</B> Re:
[Bldg-sim] eQuest - Model verification<o:p></o:p></SPAN></P></DIV>
<P style="MARGIN-LEFT: 1in" class=MsoNormal><SPAN
style="COLOR: black"> <o:p></o:p></SPAN></P>
<DIV>
<P style="MARGIN-LEFT: 1in" class=MsoNormal><SPAN style="COLOR: black">Also, a
model that is calibrated to actual building use and weather can help to
highlight building operation issues. I have had models which were off from
actual operating energy use that I was able to determine how the building was
operating inefficiently.<o:p></o:p></SPAN></P></DIV>
<DIV>
<P style="MARGIN-LEFT: 1in" class=MsoNormal><SPAN
style="COLOR: black"> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P style="MARGIN-LEFT: 1in" class=MsoNormal><SPAN style="COLOR: black">In one
case, I created a model of an existing building. For this model, I made an
actual count of lighting fixtures and computers. For most of the year,
there were few other electrical loads. I based on their occupancy and use
schedules, I was not quite able to calibrate the electrical energy use.
When I met with the client, I informed him that my model showed somewhat lower
electrical use, equivalent to 1/3 of the computers remaining on 24-hours per
day. As it turned out, about 1/3 of the employees DID leave their
computers on at all times so that they could log in
remotely.<o:p></o:p></SPAN></P></DIV>
<DIV>
<P style="MARGIN-LEFT: 1in" class=MsoNormal><SPAN
style="COLOR: black"> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P style="MARGIN-LEFT: 1in" class=MsoNormal><SPAN style="COLOR: black">... I
guess what I'm saying is that maybe the goal is not to get the model within 1%
of the building energy use, but get the building within 1% of the
model.<o:p></o:p></SPAN></P></DIV>
<DIV>
<P style="MARGIN-LEFT: 1in" class=MsoNormal><SPAN
style="COLOR: black"> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P style="MARGIN-LEFT: 1in" class=MsoNormal><SPAN
style="COLOR: black">--<o:p></o:p></SPAN></P></DIV>
<DIV>
<P style="MARGIN-LEFT: 1in" class=MsoNormal><SPAN
style="COLOR: black">Karen<o:p></o:p></SPAN></P></DIV>
<P style="MARGIN-LEFT: 1in" class=MsoNormal><SPAN
style="COLOR: black"> <o:p></o:p></SPAN></P>
<DIV>
<P style="MARGIN-LEFT: 1in" class=MsoNormal><SPAN style="COLOR: black">On Thu,
Apr 28, 2011 at 3:20 PM, Carol Gardner <<A
href="mailto:cmg750@gmail.com">cmg750@gmail.com</A>>
wrote:<o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 1in" class=MsoNormal><SPAN style="COLOR: black">Bill
summed it up really well, Katherine. Sometimes a client will think a calibrated
model must match the real building by an unrealistically high number, like 1%. I
really can't imagine an instance when that would be desirable. It certainly
would be costly to achieve. <o:p></o:p></SPAN></P>
<DIV>
<P style="MARGIN-LEFT: 1in" class=MsoNormal><SPAN
style="COLOR: black"> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P style="MARGIN-LEFT: 1in" class=MsoNormal><SPAN style="COLOR: black">Usually
the plan is to use the calibrated model as a tool to examine various energy
saving measures/opportunities that the client may be interested in implementing.
It is important to remember, in this case that you are looking at the usage
between the calibrated model and the ECM model, so the 1% deviation is
consistent in both and not a worry.<o:p></o:p></SPAN></P></DIV>
<DIV>
<P style="MARGIN-LEFT: 1in" class=MsoNormal><SPAN
style="COLOR: black"> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P
style="MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 1in; MARGIN-RIGHT: 0in; mso-margin-top-alt: 0in"
class=MsoNormal><SPAN style="COLOR: black">Carol<o:p></o:p></SPAN></P>
<DIV>
<DIV>
<DIV>
<P style="MARGIN-LEFT: 1in" class=MsoNormal><SPAN style="COLOR: black">On Thu,
Apr 28, 2011 at 12:03 PM, Bishop, Bill <<A
href="mailto:wbishop@pathfinder-ea.com"
target=_blank>wbishop@pathfinder-ea.com</A>>
wrote:<o:p></o:p></SPAN></P></DIV></DIV>
<BLOCKQUOTE
style="BORDER-BOTTOM: medium none; BORDER-LEFT: #cccccc 1pt solid; PADDING-BOTTOM: 0in; MARGIN: 5pt 0in 5pt 4.8pt; PADDING-LEFT: 6pt; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in">
<DIV>
<DIV>
<DIV>
<DIV>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: #1f497d">Katherine,</SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: #1f497d"> </SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: #1f497d">The questions I would have for
you (or your client) are:</SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 1in"><SPAN
style="FONT-FAMILY: symbol; COLOR: #1f497d">·</SPAN><SPAN
style="COLOR: #1f497d; FONT-SIZE: 7pt">
</SPAN><SPAN style="COLOR: #1f497d">Is this an existing building, or something
in the design phase?</SPAN><SPAN style="COLOR: black"><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 1in"><SPAN
style="FONT-FAMILY: symbol; COLOR: #1f497d">·</SPAN><SPAN
style="COLOR: #1f497d; FONT-SIZE: 7pt">
</SPAN><SPAN style="COLOR: #1f497d">What is the model going to be used
for?</SPAN><SPAN style="COLOR: black"><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 1in"><SPAN
style="FONT-FAMILY: symbol; COLOR: #1f497d">·</SPAN><SPAN
style="COLOR: #1f497d; FONT-SIZE: 7pt">
</SPAN><SPAN style="COLOR: #1f497d">Is there something magical about the 1%
number?</SPAN><SPAN style="COLOR: black"><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 1in"><SPAN
style="FONT-FAMILY: symbol; COLOR: #1f497d">·</SPAN><SPAN
style="COLOR: #1f497d; FONT-SIZE: 7pt">
</SPAN><SPAN style="COLOR: #1f497d">1% of what? Annual electrical consumption?
Annual gas consumption? Both? Monthly electric/gas consumption? Monthly/annual
electrical demand?</SPAN><SPAN style="COLOR: black"><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 1in"><SPAN
style="FONT-FAMILY: symbol; COLOR: #1f497d">·</SPAN><SPAN
style="COLOR: #1f497d; FONT-SIZE: 7pt">
</SPAN><SPAN style="COLOR: #1f497d">Why remove the plug loads? Even if
everything else is modeled perfectly, plug loads are typically 10% or more of
annual electrical consumption but can be all over the place.</SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 1in"><SPAN
style="FONT-FAMILY: symbol; COLOR: #1f497d">·</SPAN><SPAN
style="COLOR: #1f497d; FONT-SIZE: 7pt">
</SPAN><SPAN style="COLOR: #1f497d">“Easily adjusted” by whom? Does your
client want you to hand them a model and let them make all subsequent
adjustments?</SPAN><SPAN style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: #1f497d"> </SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: #1f497d">Even if you are an expert energy
modeler, and there is monitored energy data available for the building down to
the individual electrical panels or broken out by end use (lighting, plug
loads, individual HVAC units etc.) you will be hard-pressed to get to within
1% on a month-by-month basis. Even 5% month-by-month is difficult. Sure, you
can tweak to your heart’s content to get a model to match annual electric
consumption within 1% based on prior year’s utility bills but to maintain a
calibrated model to that tolerance after that would require a lot of
work.</SPAN><SPAN style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: #1f497d"> </SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: #1f497d">I suggest searching the bldg-sim
and equest-users archives for information about weather files.</SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: #1f497d"> </SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: #1f497d">Oh, one more question – how much
money does your client have?</SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: #1f497d"> </SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: #1f497d">Regards,</SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: #1f497d">Bill</SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: #1f497d"> </SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<DIV>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><B><SPAN style="COLOR: black; FONT-SIZE: 10pt">William Bishop,
PE, BEMP, LEED<SUP>®</SUP> AP </SPAN></B><B><SPAN
style="COLOR: #006600; FONT-SIZE: 10pt">|</SPAN></B><B><SPAN
style="COLOR: black; FONT-SIZE: 10pt"> Pathfinder Engineers & Architects
LLP</SPAN></B><SPAN style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: black; FONT-SIZE: 9pt">Mechanical
Engineer</SPAN><SPAN style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: black; FONT-SIZE: 5pt"> </SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><B><SPAN style="COLOR: black">Error! Filename not
specified.</SPAN></B><SPAN style="COLOR: #1f497d; FONT-SIZE: 9pt">134 South
Fitzhugh
Street
Rochester, NY 14608<BR>T: <A href="tel:%28585%29%20325-6004"
target=_blank>(585) 325-6004</A> </SPAN><SPAN
style="COLOR: black; FONT-SIZE: 9pt">Ext. 114</SPAN><SPAN
style="COLOR: #1f497d">
</SPAN><SPAN style="COLOR: #1f497d; FONT-SIZE: 9pt">F: <A
href="tel:%28585%29%20325-6005" target=_blank>(585) 325-6005</A></SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: black; FONT-SIZE: 9pt"><A
href="mailto:wbishop@pathfinder-ea.com"
target=_blank>wbishop@pathfinder-ea.com</A>
<A href="http://www.pathfinder-ea.com/"
target=_blank>www.pathfinder-ea.com</A></SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P></DIV>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN
style="FONT-FAMILY: webdings; COLOR: green; FONT-SIZE: 18pt">P</SPAN><SPAN
style="COLOR: green"> </SPAN><SPAN
style="COLOR: green; FONT-SIZE: 7.5pt">Sustainability – the forest AND the
trees.</SPAN><SPAN
style="FONT-FAMILY: webdings; COLOR: green; FONT-SIZE: 18pt"> P</SPAN><SPAN
style="COLOR: green; FONT-SIZE: 18pt"> </SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<DIV>
<DIV
style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><B><SPAN
style="COLOR: black; FONT-SIZE: 10pt">From:</SPAN></B><SPAN
style="COLOR: black; FONT-SIZE: 10pt"> <A
href="mailto:bldg-sim-bounces@lists.onebuilding.org"
target=_blank>bldg-sim-bounces@lists.onebuilding.org</A> [mailto:<A
href="mailto:bldg-sim-bounces@lists.onebuilding.org"
target=_blank>bldg-sim-bounces@lists.onebuilding.org</A>] <B>On Behalf Of
</B>Katherine Louman-Gardiner<BR><B>Sent:</B> Thursday, April 28, 2011 1:49
PM<BR><B>To:</B> <A href="mailto:bldg-sim@lists.onebuilding.org"
target=_blank>bldg-sim@lists.onebuilding.org</A><BR><B>Subject:</B> [Bldg-sim]
eQuest - Model verification</SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P></DIV></DIV>
<DIV>
<DIV>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: black"> <o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: black" lang=EN-CA>Hi All,</SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: black" lang=EN-CA>Our client would like us
to produce an eQuest model that</SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 1in"><SPAN style="COLOR: black"
lang=EN-CA>a)</SPAN><SPAN style="COLOR: black; FONT-SIZE: 7pt"
lang=EN-CA> </SPAN><SPAN style="COLOR: black"
lang=EN-CA>Can be easily adjusted to include current and recently recorded
weather data</SPAN><SPAN style="COLOR: black"><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 1in"><SPAN style="COLOR: black"
lang=EN-CA>b)</SPAN><SPAN style="COLOR: black; FONT-SIZE: 7pt"
lang=EN-CA> </SPAN><SPAN style="COLOR: black"
lang=EN-CA>Can be easily adjusted to reflect space occupancies and lighting
loads</SPAN><SPAN style="COLOR: black"><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 1in"><SPAN style="COLOR: black"
lang=EN-CA>c)</SPAN><SPAN style="COLOR: black; FONT-SIZE: 7pt"
lang=EN-CA> </SPAN><SPAN
style="COLOR: black" lang=EN-CA>Will reflect the actual building energy usage
to within 1%</SPAN><SPAN style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: black" lang=EN-CA>Do any of you have
experience trying to validate models like this? </SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: black" lang=EN-CA>My concern is that
models are approximations, and will not account for small changes in
occupancy, outdoor weather, etc. </SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: black" lang=EN-CA>I guess my questions are
these:</SPAN><SPAN style="COLOR: black"><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 1in"><SPAN style="COLOR: black"
lang=EN-CA>1)</SPAN><SPAN style="COLOR: black; FONT-SIZE: 7pt"
lang=EN-CA> </SPAN><SPAN style="COLOR: black"
lang=EN-CA>Even if I manage to put in daily occupant and fan schedules based
on actual use, will the model be accurate enough to take me within
1%?</SPAN><SPAN style="COLOR: black"><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 1in"><SPAN style="COLOR: black"
lang=EN-CA>2)</SPAN><SPAN style="COLOR: black; FONT-SIZE: 7pt"
lang=EN-CA> </SPAN><SPAN style="COLOR: black"
lang=EN-CA>We have been asked to remove plug loads (both for consumption
purposes and cooling loads). Will this be too big of an assumption to
get any accuracy out of the model in the future?</SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 1in"><SPAN style="COLOR: black"
lang=EN-CA>3)</SPAN><SPAN style="COLOR: black; FONT-SIZE: 7pt"
lang=EN-CA> </SPAN><SPAN style="COLOR: black"
lang=EN-CA>How do I modify the weather input file?</SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P style="MARGIN-LEFT: 1in"><SPAN style="COLOR: black"
lang=EN-CA>4)</SPAN><SPAN style="COLOR: black; FONT-SIZE: 7pt"
lang=EN-CA> </SPAN><SPAN style="COLOR: black"
lang=EN-CA>Are there any other ideas I’m missing that will help us validate a
model as an absolute measure of actual building energy
consumption?</SPAN><SPAN style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: black" lang=EN-CA>Thank you for your
help,<BR>Katherine</SPAN><SPAN style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: black" lang=EN-CA> </SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: black" lang=EN-CA>Katherine
Louman-Gardiner, EIT</SPAN><SPAN style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: black" lang=EN-CA>Mechanical
Engineer</SPAN><SPAN style="COLOR: black"><o:p></o:p></SPAN></P>
<P
style="MARGIN-LEFT: 1in; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"
class=MsoNormal><SPAN style="COLOR: black" lang=EN-CA> </SPAN><SPAN
style="COLOR: black"><o:p></o:p></SPAN></P></DIV></DIV></DIV></DIV>
<P style="MARGIN-LEFT: 1in" class=MsoNormal><SPAN
style="COLOR: black"> <o:p></o:p></SPAN></P></DIV></DIV>
<P
style="MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 1in; MARGIN-RIGHT: 0in; mso-margin-top-alt: 0in"
class=MsoNormal><SPAN
style="COLOR: black">_______________________________________________<BR>Bldg-sim
mailing list<BR><A
href="http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org"
target=_blank>http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org</A><BR>To
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href="mailto:BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG"
target=_blank>BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG</A><o:p></o:p></SPAN></P></BLOCKQUOTE></DIV>
<P style="MARGIN-LEFT: 1in" class=MsoNormal><SPAN style="COLOR: black"><BR><BR
clear=all><BR>-- <BR>Carol Gardner PE<o:p></o:p></SPAN></P></DIV>
<P
style="MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 1in; MARGIN-RIGHT: 0in; mso-margin-top-alt: 0in"
class=MsoNormal><SPAN
style="COLOR: black"><BR>_______________________________________________<BR>Bldg-sim
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<P style="MARGIN-LEFT: 1in" class=MsoNormal><SPAN
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