<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><DIV>Nick and Pasha,</DIV>
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<DIV>Thanks a lot for your help. Now I have better understanding of unmet hourss and Equest reports.</DIV>
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<DIV>Thanks,</DIV>
<DIV>Jennifer</DIV>
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<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Nick Caton <ncaton@smithboucher.com><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> Jennifer Jin <evergreen.building@yahoo.com>; Pasha Korber-Gonzalez <pasha.pkconsulting@gmail.com><BR><B><SPAN style="FONT-WEIGHT: bold">Cc:</SPAN></B> equest-users@lists.onebuilding.org<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Mon, August 2, 2010 5:50:54 PM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> RE: [Equest-users] SS-E or SS-R for Unmet Hours?<BR></FONT><BR>
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<P class=MsoNormal><SPAN style="FONT-FAMILY: 'sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Jennifer,</SPAN></P>
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<P class=MsoNormal><SPAN style="FONT-FAMILY: 'sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">To find your total unmet hours, per your original question, use SS-E in conjunction with the “unmet hours” percentage in the BEMP report. A discussion from the not-so-far past is copied below (scroll to the bottom) wherein eQuest developer Scott Criswell laid down the law.</SPAN></P>
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<P class=MsoNormal><SPAN style="FONT-FAMILY: 'sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">SS-R, F and O are collectively very useful for tracking down exactly when and where your unmet hours are occurring, to help track down what might be awry to resolve them, if you should desire/need to, as the “important note” explains. I expect this is why Pasha is bringing SS-F to your attention.</SPAN></P>
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<P class=MsoNormal><SPAN style="FONT-FAMILY: 'sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">SS-E however is what you’re working with to determine LEED unmet hours, however. Plenty of further discussion as to why in the archives (search for ‘coincidental unmet hours’). Currently there’s no perfectly clean way to distinguish coincidental unmet heating vs. cooling hours, unless you get lucky and have zero of either. I understand an approach when you have both is to take your total and proportion it out based on SS-R sums…</SPAN></P>
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<P class=MsoNormal><SPAN style="FONT-FAMILY: 'sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">On a related note, an easier-to-digest view of both where the unmet hours are occurring (identifying the zone) and the unmet cooling/heating totals for each zone is available by clicking “Air Side HVAC” then “Summary” tabs after a calculation. Highlight any one system in the tree to the left or click the top of the tree to see them all with sums at the bottom. Unmet heating/cooling hours are summed for each zone – this happens to be a fast way to identify where a cryptically-named zone with unmet hours exists in your model, as well.</SPAN></P>
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<P class=MsoNormal><SPAN style="FONT-FAMILY: 'sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Best of luck!</SPAN></P>
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<P class=MsoNormal><SPAN style="FONT-FAMILY: 'sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">~Nick</SPAN></P>
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<P class=MsoNormal><B><SPAN style="FONT-FAMILY: 'sans-serif'; COLOR: #2d4d5e; FONT-SIZE: 11pt">NICK CATON, E.I.T.</SPAN></B><B><SPAN style="FONT-FAMILY: 'sans-serif'; COLOR: #2d4d5e"></SPAN></B></P>
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<P class=MsoNormal><B><SPAN style="FONT-FAMILY: 'sans-serif'; FONT-SIZE: 10pt">From:</SPAN></B><SPAN style="FONT-FAMILY: 'sans-serif'; FONT-SIZE: 10pt"> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org] <B>On Behalf Of </B>Jennifer Jin<BR><B>Sent:</B> Monday, August 02, 2010 4:32 PM<BR><B>To:</B> Pasha Korber-Gonzalez<BR><B>Cc:</B> equest-users@lists.onebuilding.org<BR><B>Subject:</B> Re: [Equest-users] SS-E or SS-R for Unmet Hours?</SPAN></P></DIV></DIV>
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<P class=MsoNormal>Pasha,</P></DIV>
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<P class=MsoNormal>Thanks a lot . I looked at the document and on page 126, it says: <SPAN style="COLOR: #0000bf">To calculate the total number of hours outside the throttling rage, multiply the percentage reported here by the" Hours Fans on" reported on SS-E",</SPAN> But on the same page, under "important note: it also says: <SPAN style="COLOR: #0000bf">To investigate any hours outside the throttling range, see SS-R, then SS-F and SS-O to isolate the system & zone (SS-R), time of year (SS-F) and time of day (SS-O) the control problems occur." </SPAN></P></DIV>
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<P class=MsoNormal><SPAN style="COLOR: #111111">So I am a little confused here.</SPAN></P></DIV>
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<P class=MsoNormal><SPAN style="COLOR: #111111">Thanks,</SPAN></P></DIV>
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<P class=MsoNormal><SPAN style="COLOR: #111111">Jennifer</SPAN></P></DIV>
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<P class=MsoNormal><B><SPAN style="FONT-FAMILY: 'sans-serif'; FONT-SIZE: 10pt">From:</SPAN></B><SPAN style="FONT-FAMILY: 'sans-serif'; FONT-SIZE: 10pt"> Pasha Korber-Gonzalez <pasha.pkconsulting@gmail.com><BR><B>To:</B> Jennifer Jin <evergreen.building@yahoo.com><BR><B>Cc:</B> equest-users@lists.onebuilding.org<BR><B>Sent:</B> Mon, August 2, 2010 4:20:48 PM<BR><B>Subject:</B> Re: [Equest-users] SS-E or SS-R for Unmet Hours?<BR></SPAN><BR><BR></P>
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<P class=MsoNormal>Hi Jennifer,</P></DIV>
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<P class=MsoNormal>I suggest the SS-F report, not SS-E. Take a look at the attached document, this should help you understand the reports better and what information they contain. I use this reference document ALL the time to help me analyze and QC check my models.</P></DIV>
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<P class=MsoNormal>Let us know if you have more questions.</P></DIV>
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<P style="MARGIN-BOTTOM: 12pt" class=MsoNormal>Pasha</P></DIV>
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<P class=MsoNormal>On Mon, Aug 2, 2010 at 12:24 PM, Jennifer Jin <<A href="mailto:evergreen.building@yahoo.com" rel=nofollow target=_blank ymailto="mailto:evergreen.building@yahoo.com">evergreen.building@yahoo.com</A>> wrote:</P>
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<P class=MsoNormal>Pasha,</P></DIV>
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<P class=MsoNormal>Thanks for your quick response. SS-E report provides the annual total fas run hours (not a zone level), will that be sufficient for a LEED submittal?</P></DIV>
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<P class=MsoNormal>Thanks,</P></DIV>
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<P class=MsoNormal>Jennifer</P></DIV>
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<P class=MsoNormal><B><SPAN style="FONT-FAMILY: 'sans-serif'; FONT-SIZE: 10pt">From:</SPAN></B><SPAN style="FONT-FAMILY: 'sans-serif'; FONT-SIZE: 10pt"> Pasha Korber-Gonzalez <<A href="mailto:pasha.pkconsulting@gmail.com" rel=nofollow target=_blank ymailto="mailto:pasha.pkconsulting@gmail.com">pasha.pkconsulting@gmail.com</A>><BR><B>To:</B> Jennifer Jin <<A href="mailto:evergreen.building@yahoo.com" rel=nofollow target=_blank ymailto="mailto:evergreen.building@yahoo.com">evergreen.building@yahoo.com</A>><BR><B>Cc:</B> <A href="mailto:equest-users@lists.onebuilding.org" rel=nofollow target=_blank ymailto="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</A><BR><B>Sent:</B> Mon, August 2, 2010 2:18:08 PM<BR><B>Subject:</B> Re: [Equest-users] SS-E or SS-R for Unmet Hours?</SPAN></P></DIV>
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<P class=MsoNormal>Jennifer,</P></DIV>
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<P class=MsoNormal>start with looking at both SS-F (for each zone in your model) and SS-R for each system in your model. You'll need to use them both simultaneously to start understanding what your model is OR is not doing.</P></DIV>
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<P style="MARGIN-BOTTOM: 12pt" class=MsoNormal>Pasha</P></DIV>
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<P class=MsoNormal>On Mon, Aug 2, 2010 at 12:05 PM, Jennifer Jin <<A href="mailto:evergreen.building@yahoo.com" rel=nofollow target=_blank ymailto="mailto:evergreen.building@yahoo.com">evergreen.building@yahoo.com</A>> wrote:</P>
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<P class=MsoNormal>Hi Every one,</P></DIV>
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<P class=MsoNormal>I have a project which use heat pump for a two story office building. Which report should I use to get unmet hours, SS-E or SS-R? </P></DIV>
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<P class=MsoNormal>Many thanks,</P></DIV>
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<P class=MsoNormal>Jennifer</P></DIV>
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<P style="MARGIN-BOTTOM: 12pt" class=MsoNormal><BR>_______________________________________________<BR>Equest-users mailing list<BR>http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org<BR>To unsubscribe from this mailing list send a blank message to <A href="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG" rel=nofollow target=_blank ymailto="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG">EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG</A></P></DIV>
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<P class=MsoNormal><B><SPAN style="FONT-FAMILY: 'sans-serif'; FONT-SIZE: 10pt">From:</SPAN></B><SPAN style="FONT-FAMILY: 'sans-serif'; FONT-SIZE: 10pt"> Scott Criswell [mailto:scott.criswell@doe2.com] <BR><B>Sent:</B> Tuesday, October 27, 2009 11:09 AM<BR><B>To:</B> Rosenberg, Michael I<BR><B>Cc:</B> ashu gupta; Nick Caton; Crockett, Jim; Kendra Tupper; bldg-sim@lists.onebuilding.org<BR><B>Subject:</B> Re: [Bldg-sim] Ashrae 90.1 - Unmet hours</SPAN></P>
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<P class=MsoNormal>I can confirm Mike's understanding of the DOE-2/eQUEST results. To get the correct number of hours of unmet loads, people should MULTIPLY the Percent hours outside throttling range from BEPS or BEPU by the total annual "hours fans on" listed in report SS-E.<BR><BR>One other comment re: Ashu's write-up - I believe that (for DOE-2/eQUEST) a zone temperature has to be more than one degree outside the throttling range for that hour to be counted as an hour outside throttling range. So for a zone with a heating thermostat setpoint of 72 and a 2 degree throttling range (=> 71-73 degree "throttling range"), the zone temperature would have to be LESS THAN 70 in order for that hour to be counted.<BR><BR>related info -<BR>We are contemplating a change to the Air-Side HVAC Summary view in the eQUEST interface to report this total number of hours as opposed to just the percent in the totals section at the bottom of the report.<BR>We
have also just in the past several days (thanks to the efforts of Steve Gates) added precision to the percent hours outside throttling range reported on BEPS & BEPU and ALSO added separate reporting of hours any zone is either under cooled or under heated, intended for reporting to LEED submission templates. Assuming no further changes (which is certainly not out of the question), future releases of DOE-2/eQUEST will report the following in the BEPS & BEPU reports:<BR><TT><SPAN style="FONT-SIZE: 10pt"> PERCENT OF HOURS ANY SYSTEM ZONE OUTSIDE OF THROTTLING RANGE = 4.45</SPAN></TT><SPAN style="FONT-FAMILY: 'Courier New'; FONT-SIZE: 10pt"><BR><TT> PERCENT OF HOURS ANY PLANT LOAD NOT SATISFIED =
0.00</TT><BR><TT> HOURS ANY ZONE ABOVE COOLING THROTTLING RANGE = 98</TT><BR><TT> HOURS ANY ZONE BELOW HEATING THROTTLING RANGE = 25</TT><BR></SPAN><BR>- Scott<BR><BR></P></DIV></DIV>
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