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<p class="MsoNormal">Hi All,<o:p></o:p></p>
<p class="MsoNormal">To add an update to this, and after more research from Bill’s insights, I have probably answered my own question…<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">It looks like the 90.1-2010 Appendix G approach (per LEED V4 Path 1) should NOT include upstream equipment efficiencies or power. Therefore, the Baseline model should exclude the CHW pumps as these are, in fact, upstream equipment. Furthermore,
the LEED Energy Performance Calculator specifically states in its explanatory notes to not model Baseline pumps if there are none in the actual (Proposed) building.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">It’s great when one little nudge pushes you in the right direction.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal"><b><span style="font-size:8.0pt;font-family:"Century Gothic",sans-serif;color:#006E78">Jeff Ross-Bain, BCxP, BEMP, LEED Fellow</span></b><b><span style="font-size:8.0pt;font-family:"Century Gothic",sans-serif;color:#006E78">, MSc</span></b><b><span style="font-size:8.0pt;font-family:"Century Gothic",sans-serif;color:#006E78"><o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Century Gothic",sans-serif;color:#535053">President<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:7.5pt;font-family:"Century Gothic",sans-serif;color:#535053">Charleston: 843-779-9229<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:7.5pt;font-family:"Century Gothic",sans-serif;color:#535053">Atlanta: 404-220-8955<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:7.5pt;font-family:"Century Gothic",sans-serif;color:#006E78"><a href="http://www.rbgb.com/"><span style="color:blue">RBGB</span></a></span></b><span style="font-size:7.5pt;font-family:"Century Gothic",sans-serif;color:#535053"><br>
<br>
<b><o:p></o:p></b></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Century Gothic",sans-serif;color:#006E78">Maximizing Building Performance.<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Jeff Ross-Bain <br>
<b>Sent:</b> Wednesday, September 11, 2019 3:12 PM<br>
<b>To:</b> Bishop, Bill <bbishop@pathfinder-ea.com><br>
<b>Cc:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> RE: Purchased Chilled Water Pumps<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi Bill,<o:p></o:p></p>
<p class="MsoNormal">And thanks for the quick response.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">LEED V4 has added new requirements that reflect ASHRAE 90.1-2010. Previously LEED had Path 1 and Path 2 (per the document you referenced). Now, there is Path 1, 2, and 3, where Path 2, and 3, are the same as before, and Path 1 now refers
to ASHRAE 90.1-2010 Appendix G and only applies to buildings where there is both purchased cooling and heating.<o:p></o:p></p>
<p class="MsoNormal">What I failed to mention is that we have both district cooling AND heating on this project.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">So to reframe the question, per 90.1-2010, Appendix G, with purchased chilled water and heat, should the Baseline include a CHW pump even though the Proposed design does not have CHW pumps. 90.1-2010 language was a bit vague to me regarding
that point.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal"><b><span style="font-size:8.0pt;font-family:"Century Gothic",sans-serif;color:#006E78">Jeff Ross-Bain, BCxP, BEMP, LEED Fellow, MSc<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Century Gothic",sans-serif;color:#535053">President<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:7.5pt;font-family:"Century Gothic",sans-serif;color:#535053">Charleston: 843-779-9229<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:7.5pt;font-family:"Century Gothic",sans-serif;color:#535053">Atlanta: 404-220-8955<o:p></o:p></span></b></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:7.5pt;font-family:"Century Gothic",sans-serif;color:#006E78"><a href="http://www.rbgb.com/"><span style="color:blue">RBGB</span></a></span></b><b><span style="font-size:7.5pt;font-family:"Century Gothic",sans-serif;color:#535053"><o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Century Gothic",sans-serif;color:#006E78">Maximizing Building Performance.<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Bishop, Bill <<a href="mailto:bbishop@pathfinder-ea.com">bbishop@pathfinder-ea.com</a>>
<br>
<b>Sent:</b> Wednesday, September 11, 2019 1:41 PM<br>
<b>To:</b> Jeff Ross-Bain <<a href="mailto:jeff@rbgb.com">jeff@rbgb.com</a>><br>
<b>Cc:</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> RE: Purchased Chilled Water Pumps<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi Jeff,<o:p></o:p></p>
<p class="MsoNormal">The USGBC provided a guidance document for district thermal energy systems that should be helpful to you. The latest version is now 9 years old, but if you are modeling to 2010 Appendix G, it should be useable.<o:p></o:p></p>
<p class="MsoNormal"><a href="https://www.usgbc.org/resources/des-district-energy-systems-guidance-v22-and-v2009-guidance-v20">https://www.usgbc.org/resources/des-district-energy-systems-guidance-v22-and-v2009-guidance-v20</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">~Bill<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Franklin Gothic Medium",sans-serif;color:black">William Bishop, PE, BEMP, BEAP, CEM, LEED AP<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">Senior Energy Engineer<o:p></o:p></span></b></p>
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<p class="MsoNormal"><b>From:</b> Equest-users <<a href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a>>
<b>On Behalf Of </b>Jeff Ross-Bain via Equest-users<br>
<b>Sent:</b> Wednesday, September 11, 2019 1:23 PM<br>
<b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> [Equest-users] Purchased Chilled Water Pumps<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi All,<o:p></o:p></p>
<p class="MsoNormal">I seem to get hung up on the basics.<o:p></o:p></p>
<p class="MsoNormal">Our project has purchased chilled water from a campus energy plant. The Proposed design does not have CHW pumps as the system is pressurized.<o:p></o:p></p>
<p class="MsoNormal">From 90.1-2010, I am not sure if the Baseline model should include CHW pumps, or if they are omitted as in the Proposed.<o:p></o:p></p>
<p class="MsoNormal">Any thoughts would be helpful.<o:p></o:p></p>
<p class="MsoNormal">Many thanks!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="font-size:8.0pt;font-family:"Century Gothic",sans-serif;color:#006E78">Jeff Ross-Bain, BCxP, BEMP, LEED Fellow, MSc<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Century Gothic",sans-serif;color:#535053">President<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:7.5pt;font-family:"Century Gothic",sans-serif;color:#535053">Charleston: 843-779-9229<o:p></o:p></span></b></p>
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