<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:"Segoe UI";
panose-1:2 11 5 2 4 2 4 2 2 3;}
@font-face
{font-family:Verdana;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:#1F497D;}
span.EmailStyle19
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:#1F497D;}
span.EmailStyle20
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal"><span style="color:#1F497D">Hi Chris, <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">The way I would interpret 11.3.2.(j).2 is that the primary heating source should be selected from the map, and the secondary heating source should be modeled identical to the one in the proposed building. So,
in system 9, instead of having the auxiliary heat as electric, it would be natural gas. Would be interested in hearing how others interpret this clause.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Rahul<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#D47500">__________________________________________________</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif">
<br>
</span><b><span style="font-size:12.0pt;font-family:"Verdana",sans-serif;color:black">Rahul Athalye</span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif">
<br>
</span><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black">Energy Research Engineer</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif">
<br>
</span><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black">Pacific Northwest National Laboratory</span>
<br>
<span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black">509-372-4297</span>
<br>
<br>
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> Bldg-sim [mailto:bldg-sim-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>Jones, Christopher via Bldg-sim<br>
<b>Sent:</b> Monday, September 11, 2017 8:31 AM<br>
<b>To:</b> bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> [Bldg-sim] 90.1-2010 Section 11, ECB, question on multiple heat sources<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">I am modeling a project that has air-to-water heat pumps as the main plant. There is a natural gas back-up boiler for those few hours in the year where it is too cold for the heat pumps to meet the heating load.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I am not sure how to interpret 11.3.2.(j).(2) – For systems with mixed fuel heating sources, the system or systems that use the secondary heating source type (the one with the smallest total installed output
capacity for the spaces served by the system) shall be modeled identical in the building design and the primary heating source type shall be used in Figure 11.3.2 to determine the budget system type.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">In this case, as the heating water loop serves all systems in the building – all systems receive heat from the secondary heating source type at some point in the year – the language of this clause leave me wondering
what baseline system to use? <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">My interpretation is to use System 9 ignoring the back-up natural gas heat source?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><b><span style="font-size:6.0pt;color:#1F497D;mso-fareast-language:FR"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D;mso-fareast-language:FR">Christopher R. Jones</span></b><span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D;mso-fareast-language:FR">,
P.Eng.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D;mso-fareast-language:FR">Technical Specialist<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D;mso-fareast-language:FR">Sustainability & Energy<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#1F497D;mso-fareast-language:FR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><img width="78" height="37" id="Picture_x0020_15" src="cid:image001.png@01D32ADE.BE4C15C0"></span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D;mso-fareast-language:FR"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D;mso-fareast-language:FR">T +1 416-644-0252<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D;mso-fareast-language:FR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D;mso-fareast-language:FR">2300 Yonge Street, Suite 2300<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D;mso-fareast-language:FR">Toronto, ON M4P 1E4 Canada<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D;mso-fareast-language:EN-CA"><a href="wsp.com">wsp.com</a><o:p></o:p></span></p>
<p class="MsoNormal"><u><span lang="EN-CA" style="color:blue;mso-fareast-language:EN-CA"><o:p><span style="text-decoration:none"> </span></o:p></span></u></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="color:#7F7F7F;mso-fareast-language:FR"><o:p> </o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#6EA900;mso-fareast-language:FR">Please consider the environment before printing...<o:p></o:p></span></i></p>
<p class="MsoNormal"><span lang="EN-CA" style="color:#1F497D"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> Bldg-sim [<a href="mailto:bldg-sim-bounces@lists.onebuilding.org">mailto:bldg-sim-bounces@lists.onebuilding.org</a>]
<b>On Behalf Of </b>Gail Hampsmire via Bldg-sim<br>
<b>Sent:</b> Friday, August 18, 2017 5:20 PM<br>
<b>To:</b> 'bldg-sim@lists.onebuilding.org' <<a href="mailto:bldg-sim@lists.onebuilding.org">bldg-sim@lists.onebuilding.org</a>><br>
<b>Subject:</b> [Bldg-sim] LEED Pilot Alternative Compliance Paths - Minimum Energy Performance / Optimize Energy Performance<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Happy Friday to you all!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Several LEED Pilot Alternative Compliance Paths (ACPs) may be of interest to BLDG-SIM Users relevant to LEED BD&C (and in some cases ID&C) EA Prerequisite: Minimum Energy Performance and EA Credit: Optimize Energy Performance. LEED Pilot
ACPs provide an alternate method for complying with the LEED requirements for the specified credit. Projects must register for each Pilot ACP in order to use it on the project; however, there is no obligation for projects to use the alternative path once registered.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>1.</b> <b>Alternative Energy Performance Metric</b> (<a href="https://www.usgbc.org/credits/eapc95v4">https://www.usgbc.org/credits/eapc95v4</a>).<o:p></o:p></p>
<p class="MsoNormal">This Pilot ACP was recently updated to address market feedback (Advocacy letters are no longer required). Project teams may use performance metrics other than cost (Source or Primary energy, Greenhouse Gas Emissions, and Time Dependent
Valuation) to document performance improvement, as long as all required metrics are reported. The top two performance metrics are averaged to determine the performance improvement for the project.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>2. Energy Performance Metering Path </b>(<a href="https://www.usgbc.org/credits/new-construction-core-and-shell-schools-new-construction-retail-new-construction-healthca-95">https://www.usgbc.org/credits/new-construction-core-and-shell-schools-new-construction-retail-new-construction-healthca-95</a>).<o:p></o:p></p>
<p class="MsoNormal">This allows projects to use one year of post-occupancy metered data to document performance for newly constructed buildings in lieu of “validation” energy models. Design phase analysis, and compliance with mandatory ASHRAE provisions is
still required in order to pursue this ACP.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>3. Alternative Performance Rating Method </b>(<a href="https://www.usgbc.org/credits/new-construction-core-and-shell-schools-new-construction-retail-new-construction-healthc-110">https://www.usgbc.org/credits/new-construction-core-and-shell-schools-new-construction-retail-new-construction-healthc-110</a>).
<o:p></o:p></p>
<p class="MsoNormal">This allows projects to use the new stable baseline methodology established in the ASHRAE 90.1-2016 Performance Rating Method to document building performance. ASHRAE 90.1-2016 includes all details for the baseline model in the body of
Appendix G (rather than referencing other sections of ASHRAE 90.1); and allows local code authorities or above-code programs (such as LEED or utility incentive programs) to establish Building Performance Factors that align with the targeted performance for
the project application. LEED has established these thresholds to be roughly equivalent to the PNNL Building Performance Factors (BPF) aligning with ASHRAE 90.1-2010, averaged across all ASHRAE climate zones for each rating system.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>4. District Energy </b>(<a href="https://www.usgbc.org/credits/new-construction-core-and-shell-schools-new-construction-retail-new-construction-healthca-48">https://www.usgbc.org/credits/new-construction-core-and-shell-schools-new-construction-retail-new-construction-healthca-48</a>).
<o:p></o:p></p>
<p class="MsoNormal">This allows projects to seek a single PEER certification for a District Energy System (DES), and then quickly document Optimize Energy Performance points for LEED project buildings served by the DES. This eliminates the requirement for
detailed upstream modeling, and individual review of DES performance for each LEED building project.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Please direct any questions about these Pilot ACPs to the USGBC Contact Us page:
<a href="https://www.usgbc.org/contactus">https://www.usgbc.org/contactus</a><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>
<p class="MsoNormal" style="background:white"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="color:black">Best Regards,</span><span style="font-family:"Segoe UI",sans-serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><b><span style="color:#E96D1F">Gail Hampsmire</span></b><span style="color:#E96D1F">, <i>P.E., LEED Fellow</i></span><span style="font-family:"Segoe UI",sans-serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><b><span style="color:#5D9732">Technical Director, HVAC/Energy Team</span></b><span style="font-family:"Segoe UI",sans-serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><b><span style="color:#1F497D"> </span></b><span style="font-family:"Segoe UI",sans-serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><b><span style="color:#717074">Green Business Certification Inc.</span></b><span style="font-family:"Segoe UI",sans-serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="color:#717074">2101 L Street NW </span><b><span style="color:#F79646">I</span></b><span style="color:#717074"> Suite 500 </span><b><span style="color:#E96D1F">I</span></b><span style="color:#717074"> Washington
DC 20037</span><span style="font-family:"Segoe UI",sans-serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<div class="MsoNormal" align="center" style="text-align:center"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">
<hr size="2" width="100%" align="center">
</span></div>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:gray"><br>
<br>
NOTICE: This communication and any attachments ("this message") may contain information which is privileged, confidential, proprietary or otherwise subject to restricted disclosure under applicable law. This message is for the sole use of the intended recipient(s).
Any unauthorized use, disclosure, viewing, copying, alteration, dissemination or distribution of, or reliance on, this message is strictly prohibited. If you have received this message in error, or you are not an authorized or intended recipient, please notify
the sender immediately by replying to this message, delete this message and all copies from your e-mail system and destroy any printed copies. You are receiving this communication because you are listed as a current WSP contact. Should you have any questions
regarding WSP's electronic communications policy, please consult our Anti-Spam Commitment at
<a href="http://www.wsp.com/casl">www.wsp.com/casl</a>. For any concern or if you believe you should not be receiving this message, please forward this message to
<a href="mailto:caslcompliance@wsp.com">caslcompliance@wsp.com</a> so that we can promptly address your request. Note that not all messages sent by WSP qualify as commercial electronic messages.
<br>
<br>
AVIS : Ce message, incluant tout fichier l'accompagnant (« le message »), peut contenir des renseignements ou de l'information privilégiés, confidentiels, propriétaires ou à divulgation restreinte en vertu de la loi. Ce message est destiné à l'usage exclusif
du/des destinataire(s) voulu(s). Toute utilisation non permise, divulgation, lecture, reproduction, modification, diffusion ou distribution est interdite. Si vous avez reçu ce message par erreur, ou que vous n'êtes pas un destinataire autorisé ou voulu, veuillez
en aviser l'expéditeur immédiatement et détruire le message et toute copie électronique ou imprimée. Vous recevez cette communication car vous faites partie des contacts de WSP. Si vous avez des questions concernant la politique de communications électroniques
de WSP, veuillez consulter notre Engagement anti-pourriel au <a href="http://www.wsp.com/lcap">
www.wsp.com/lcap</a>. Pour toute question ou si vous croyez que vous ne devriez pas recevoir ce message, prière de le transférer au
<a href="mailto:conformitelcap@wsp.com">conformitelcap@wsp.com</a> afin que nous puissions rapidement traiter votre demande. Notez que ce ne sont pas tous les messages transmis par WSP qui constituent des messages electroniques commerciaux.
<br>
</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><br>
</span><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:whitesmoke"><br>
<br>
-LAEmHhHzdJzBlTWfa4Hgs7pbKl </span><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p></o:p></span></p>
</div>
</body>
</html>