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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">Dear Sirs,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">I am modeling a school building for LEED which has a Campus Energy System (water cooled chiller and diesel boiler). The DES was installed almost 8 months ago for
the first phase of the project.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">Now, I am modeling for the project’s second phase, and additional chillers / boilers will be added to the DES in order to be able to serve both phases in addition
to any potential building on campus in the future.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo1"><![if !supportLists]><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy"><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">Looking at the USGBC’s guidance for DES (Appendix C): in order to determine the proposed building heating / cooling efficiency, I guess I have to go with
the “Modeling” option because the DES will be expanded as part of my project (so it’s not existing).
<o:p></o:p></span></p>
<p class="MsoListParagraph"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy"><o:p> </o:p></span></p>
<p class="MsoListParagraph"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">For this option, do I have to create a separate model of the district plant, or shall I add this district plant to my project's model? Appendix C says "Apply
measured or estimated load profiles as "process loads" to reflect the estimated total loads on the plant". If this is the case, then if I add the process loads in addition to my project's loads, I will be double counting the loads, right?<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">Does this mean I have to create a dummy project building (with no loads) with the proposed district plant to determine the efficiencies?<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo1"><![if !supportLists]><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy"><span style="mso-list:Ignore">2)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">Does anyone have additional guidance for modeling district energy systems, other than the one of the USGBC? Something with more examples or maybe a case
study with actual numbers?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#000082;mso-fareast-language:EN-GB">Best regards,</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#000082;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#000082;mso-fareast-language:EN-GB">Omar<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy;mso-fareast-language:EN-GB">___________________________</span><span lang="EN-US" style="font-size:12.0pt;font-family:"Arial","sans-serif";color:#000082;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy;mso-fareast-language:EN-GB">Omar Katanani</span><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman","serif";color:#000082;mso-fareast-language:EN-GB"><br>
</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy;mso-fareast-language:EN-GB">Senior Sustainability Engineer</span><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman","serif";color:#000082;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy;mso-fareast-language:EN-GB">Email:
<a href="mailto:omar@ecoconsulting.net"><span style="color:blue">omar@ecoconsulting.net</span></a></span><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman","serif";color:#000082;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:black;mso-fareast-language:EN-GB"> </span><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman","serif";color:#000082;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:navy;mso-fareast-language:EN-GB">EcoConsulting (Lebanon)<br>
Nahas Building, 4<sup>th</sup> floor</span><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman","serif";color:#000082;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:navy;mso-fareast-language:EN-GB">Georges Haddad Avenue</span><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman","serif";color:#000082;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:navy;mso-fareast-language:EN-GB">Postal Code: 2028 5806, Saifi District</span><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman","serif";color:#000082;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:navy;mso-fareast-language:EN-GB">Beirut, Lebanon</span><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman","serif";color:#000082;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:navy;mso-fareast-language:EN-GB">Tel: +961 (0) 1 971 266
<br>
Mobile: +961 (0) 3 045 045</span><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman","serif";color:#000082;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:navy;mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:navy;mso-fareast-language:EN-GB">EcoConsulting (UK) Ltd<br>
28 Marshalsea Road<br>
London, SE1 1HF<br>
Tel: +44 (0) 20 8144 0015<br>
Website: </span><span style="font-family:"Century Gothic","sans-serif";color:navy;mso-fareast-language:EN-GB"><a href="http://www.ecoconsulting.net/"><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:navy">www.ecoconsulting.net</span></a></span><span style="color:#000099;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:navy;mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#000082;mso-fareast-language:EN-GB"><img border="0" width="576" height="67" id="Picture_x0020_1" src="cid:image001.jpg@01CF0B0C.C28D0A90" alt="Description: EcoConsulting Membership Logos (low res)"></span><span lang="EN-US" style="color:#000082;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
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