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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">How about allocating the fraction of the PV capacity based on the square footage of each of the buildings on the system?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Keith Swartz, PE
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:gray">|
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Senior Energy Engineer<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:110%"><b><span style="font-size:10.0pt;line-height:110%;font-family:"Arial",sans-serif;color:black">Seventhwave</span></b><span style="font-size:10.0pt;line-height:110%;font-family:"Arial",sans-serif;color:gray"> |
</span><b><span style="font-size:10.0pt;line-height:110%;font-family:"Arial",sans-serif;color:#5F5F5F">Madison.Chicago.Minneapolis</span></b><b><span style="font-size:10.0pt;line-height:110%;font-family:"Arial",sans-serif;color:gray"><o:p></o:p></span></b></p>
<p class="MsoNormal" style="line-height:110%"><span style="font-size:10.0pt;line-height:110%;font-family:"Arial",sans-serif;color:black">608.210.7123 seventhwave.org<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Sharad Kumar [mailto:sharadcapricious@gmail.com]
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<b>Sent:</b> Sunday, November 22, 2015 1:20 AM<br>
<b>To:</b> </span><span style="font-size:11.0pt;font-family:"Microsoft JhengHei",sans-serif">赵永青</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> <503271081@qq.com><br>
<b>Cc:</b> equest-users <equest-users@lists.onebuilding.org><br>
<b>Subject:</b> [Equest-users] Central PV system contribution to single-building<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:blue">Hi Zara zhou,</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:blue">I think that you have changed the question.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">I will give a try.The PV power generated will be distributed to each building as per their total energy consumption and this PV generated energy can be a big part, whole part or small part as per the building type,
usage and demand.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">See, there is no rigorous way to find out the balance as it can be anything as estimated by the electrical consultant.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">So you can do one thing is to have the building's total energy consumption as per the building usage and distribute it as per the suitability or purpose of the demand of the building.</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:blue">I mean to say is that it has to be as per the project requirement and building demand.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">Another factor can be the site or roof part on which the PV cells are installed.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">Hence if the PV plant reach-ability factor is there as the power generated and distributed will be resolved like that.</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:blue">Also, at last the most easy and no harm and comfortable way can be is to supply any PV generated power to any building as the energy unit is kWh and is immaterial of the way it is supplied.</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:blue">I meant to say building usage is a factor as the building may require 24 hour or 12 hour or 8 hour energy supply so based on that, the PV generated power may be supplied.</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:blue">Also PV generated power can't be for whole year so keeping in mind all these factors one can decide the way to have the energy supply.</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:blue">I will suggest you can contact your electrical consultant to resolve the issue as i am unknown about the project site and purpose of the project.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">May be this can be helpful.</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:blue">Thanks,</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">Sharad.Kumar</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">Green Horizon Consulting LLP</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">Gurgaon</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">India.</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Sun, Nov 22, 2015 at 8:48 AM, <span style="font-family:"Microsoft JhengHei",sans-serif">
赵永青</span> <<a href="mailto:503271081@qq.com" target="_blank">503271081@qq.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Zara zhou's question is how to distribute a central PV generation to each building.However<span style="font-family:"Calibri",sans-serif">，</span>all the answers are how to calculate PV generation.<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.0pt">---</span><span style="font-size:9.0pt;font-family:"Calibri",sans-serif">原始</span><span style="font-size:9.0pt;font-family:"Microsoft JhengHei",sans-serif">邮件</span><span style="font-size:9.0pt">---<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:#F0F0F0"><b><span style="font-size:9.0pt;font-family:"Microsoft JhengHei",sans-serif;color:#212121">发件人</span></b><b><span style="font-size:9.0pt;color:#212121">:</span></b><span style="font-size:9.0pt;color:#212121">
"Sharad Kumar"<<a href="mailto:sharadcapricious@gmail.com" target="_blank">sharadcapricious@gmail.com</a>><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:#F0F0F0"><b><span style="font-size:9.0pt;font-family:"Microsoft JhengHei",sans-serif;color:#212121">发送时间</span></b><b><span style="font-size:9.0pt;color:#212121">:</span></b><span style="font-size:9.0pt;color:#212121">
2015</span><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:#212121">年</span><span style="font-size:9.0pt;color:#212121">11</span><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:#212121">月</span><span style="font-size:9.0pt;color:#212121">22</span><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:#212121">日</span><span style="font-size:9.0pt;color:#212121">
09:01:14<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:#F0F0F0"><b><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:#212121">收件人</span></b><b><span style="font-size:9.0pt;color:#212121">:</span></b><span style="font-size:9.0pt;color:#212121"> "equest-users"<<a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a>>;<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:#F0F0F0"><b><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:#212121">主</span></b><b><span style="font-size:9.0pt;font-family:"Microsoft JhengHei",sans-serif;color:#212121">题</span></b><b><span style="font-size:9.0pt;color:#212121">:</span></b><span style="font-size:9.0pt;color:#212121">
Re: [Equest-users] Central PV system contribution to singlebuilding?<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"><span style="color:blue">Hi Zhouzarah,</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:blue">I have done some calculations as per my understanding.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">I have done certain assumptions like:</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">1. Solar PV area and </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">2. Number of months for solar insolation in India.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">Insolation is nothing but the direct solar radiation energy per PV sq. meter per day.It can be over the ground surface also.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">For India the average insolation can be from 4 to 6.5 kWh/ sq. meter/ day.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">It varies from country to country.<img border="0" width="481" height="132" id="_x0000_i1025" src="cid:image002.png@01D125CC.B97CE060" alt="Inline image 1"></span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:blue">Total solar energy generated as electricity per year = Solar insolation (kWh/ sq. meter/ day)X solar PV area X total number of days for proper solar insolation X efficiency of the the solar PV cell.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">The efficiency of solar PV varies from 8 to 13 %age for mono crystalline to poly crystalline PV</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">Hence i have done the calculations.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">Even IES-VE has the module to have the solar PV calculations.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">This energy can be deducted from the proposed case energy consumption to have the savings.</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:blue">Thanks,</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">Sharad.Kumar</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">Green Horizon Consulting LLP</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">Gurgaon</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:blue">India.</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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---------- Forwarded message ----------<br>
From: zhouzarah <<a href="mailto:zarahzhou@hotmail.com" target="_blank">zarahzhou@hotmail.com</a>><br>
To: "<a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a>" <<a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a>><br>
Cc: <br>
Date: Fri, 20 Nov 2015 02:10:45 +0000<br>
Subject: [Equest-users] Central PV system contribution to single building<o:p></o:p></p>
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<p class="MsoNormal">Dear eQuesters,<o:p></o:p></p>
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<p class="MsoNormal">I am working on a LEED certification for one building in an industry park. The park has a solar PV system serving several buildings. So I do not think I can simulate the PV systems directly in eQUEST to get its share to the LEED target
building. My question is how to estimate the PV generated electricity to my building? Should I prorate the PV electricity based on those buildings' energy use, or there is a better way to do the calculation/estimation in the design phase? Any comment is appreciated!<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Best regards,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Zarah<o:p></o:p></p>
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