<div dir="ltr"><font color="#0000ff">Hi Keith,</font><div><font color="#0000ff"><br></font></div><div><font color="#0000ff">Based on square footage is not that a great help.</font></div><div><font color="#0000ff">Rather based on building energy demand can be an easy way.</font></div><div><font color="#0000ff">The building peak load for normal occupied and unoccupied hours can be a better way.</font></div><div><font color="#0000ff">I mean to say that supplying the energy is not that a great deal, rather meeting the demand and for suitable usage like avoiding not able to meet the building peak load can be an issue as per me.</font></div><div><font color="#0000ff">See, for emergency one can have batteries to store and supply.</font></div><div><font color="#0000ff">So supply has to be met.</font></div><div><font color="#0000ff">Avoiding a heck and meeting the various building energy demand can help.</font></div><div><font color="#0000ff"><br></font></div><div><font color="#0000ff">I will point out the general flaws in solar PV cells:</font></div><div><font color="#0000ff">1. It can't be generated for whole year.</font></div><div><font color="#0000ff">2. It's efficiency is less near around 10 %age.</font></div><div><font color="#0000ff">3. It requires big area to meet the demand.</font></div><div><font color="#0000ff">4. It requires numerous batteries to supply in off season.</font></div><div><font color="#0000ff"><br></font></div><div><font color="#0000ff">My prior building usage concept was to have met the demand.</font></div><div><font color="#0000ff">Suppose for hospital we need 24 hours energy supply so it can be that it should not be on solar PV or it can be on solar PV for the summer season.</font></div><div><font color="#0000ff">Additionally, if there is an office building so the supply can be for normal occupied hours. Again one can supply solar PV or general electricity as per the solar PV capacity for occupied and unoccupied hours.</font></div><div><font color="#0000ff">So the off season concept is that when there is no solar insolation then we may have to supply by normal grid supply electricity.</font></div><div><font color="#0000ff">Again, if there is a school then one can supply for normal occupied and vacated periods.</font></div><div><font color="#0000ff"><br></font></div><div><font color="#0000ff">Hence the demand concept can be that to have the electricity supply for the total number of occupied hours without shut down.</font></div><div><font color="#0000ff">See, my answers can be not that greatly helpful so one can supply any number of units to any building and having had avoiding the general lacking of electricity.</font></div><div><font color="#0000ff"><br></font></div><div><font color="#0000ff">My suggestions:</font></div><div><font color="#0000ff"><br></font></div><div><font color="#0000ff">1. Try to increase the solar PV area and meet the whole building whole campus demand.</font></div><div><font color="#0000ff">2. For this we need to increase the number of batteries to store for off season.</font></div><div><font color="#0000ff">3. The off season can be the winter season when there is not much solar insolation.</font></div><div><font color="#0000ff">4.One can have a DG set for meeting the demand. This can also help.</font></div><div><span style="color:rgb(0,0,255)">5. Also one can have a help from having better low energy demand equipments with high efficiency and LED lighting to have less building's energy consumption</span><span style="color:rgb(0,0,255)">.</span><br></div><div><span style="color:rgb(0,0,255)">6. Try to have poly crystalline solar cells to have higher efficiency.</span></div><div><font color="#0000ff">7. Try to have proper maintenance of solar PV plant to have better efficiency.</font></div><div><font color="#0000ff"><br></font></div><div><font color="#0000ff">These are my advises. </font></div><div><br></div><div><br></div><div><font color="#0000ff">Thanks,</font></div><div><font color="#0000ff">Sharad.Kumar.</font></div><div><font color="#0000ff">Green Horizon Consulting LLP.</font></div><div><font color="#0000ff">Gurgaon</font></div><div><font color="#0000ff">India.<br></font><div class="gmail_extra"><a href="https://www.linkedin.com/profile/preview?locale=en_US&trk=prof-0-sb-preview-primary-button" target="_blank">Linked-in</a><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Nov 24, 2015 at 2:31 AM, <span dir="ltr"><<a href="mailto:equest-users-request@lists.onebuilding.org" target="_blank">equest-users-request@lists.onebuilding.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send Equest-users mailing list submissions to<br>
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1. Re: Central PV system contribution to single-building<br>
(Keith Swartz)<br>
<br><br>---------- Forwarded message ----------<br>From: Keith Swartz <<a href="mailto:KSwartz@seventhwave.org" target="_blank">KSwartz@seventhwave.org</a>><br>To: Sharad Kumar <<a href="mailto:sharadcapricious@gmail.com" target="_blank">sharadcapricious@gmail.com</a>>, "赵永青" <<a href="mailto:503271081@qq.com" target="_blank">503271081@qq.com</a>><br>Cc: equest-users <<a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a>><br>Date: Mon, 23 Nov 2015 14:55:42 +0000<br>Subject: Re: [Equest-users] Central PV system contribution to single-building<br>
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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?<u></u><u></u></span></p>
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<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<u></u><u></u></span></p>
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