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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>First off – 3.7 is high, but not unreasonable for an office. It depends on what you are doing in the space. I would recommend trying to get a good representation of power loads on a space by space basis rather than spreading a uniform power intensity across the whole building – this makes a big difference with CAV & VAV systems – especially with reheat issues. If you assume 50 ft2 per workstation and around 175 W per station – that’s over 3w/ft2. Remember – connected peak power and actual peak power are different – you need to factor in some level of diversity in your usage schedules. If you have any kind of server room – I would definitely model that as a separate space with its own system and equipment 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'>Relative to the GBCI & LEED – if you document your equipment assumptions properly and can make the case that you have modeled this close to reality (I would provide a space by space table along with a usage profile), you should be fine. The 25% is a minimum unless you can reasonably document otherwise.<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'>Hope this helps<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal style='text-autospace:none'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#DCAA2C'><o:p> </o:p></span></b></p><p class=MsoNormal style='text-autospace:none'><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>Vikram Sami</span></b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>, LEED AP BD+C<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>Sustainable Design Analyst<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>1315 Peachtree St. NE, Atlanta, GA 30309<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>t: 404-443-7462 f: </span><span lang=ES style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>404.892.5823 </span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'> e: vikram.sami@perkinswill.com </span><span style='color:#1F497D'><a href="http://www.perkinswill.com/"><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray;text-decoration:none'>www.perkinswill.com</span></a></span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'><o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:3.0pt;text-autospace:none'><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>Perkins+Will.</span></b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'> </span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#ADD425'>Ideas + buildings that honor the broader goals of society</span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:green'><o:p></o:p></span></p><p class=MsoNormal><span 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 #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Daniel Kaler<br><b>Sent:</b> Friday, March 02, 2012 10:04 AM<br><b>To:</b> equest-users@lists.onebuilding.org<br><b>Subject:</b> [Equest-users] Process Load & LEED Documentation<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-family:"Optima LT"'>Hello All,<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'>My question is regarding the 25% process load as required by LEED online. I’ll give a little background on the building first…<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'>The building is located in northern Minnesota, rendering it a heating dominate building. Our HVAC system is a geothermal water-to-air heat pump system with an electric back up boiler. There will be no gas usage. For this scenario, system type 4 was used for the baseline case. Since a majority of the winter will be spent below the heat pump operating temperature, in heating mode, electric resistance is the main source of heating. This being said, my baseline system has a very large annual heating consumption. <o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'>Now to my dilemma. With the large heating consumption in the baseline design, the process load was below the 25% threshold. I was advised to increase the plug load until I was able to surpass the 25%. After multiple iterations, I came to a value of 3.7 W/sqft for the office spaces (the building is primarily offices). Obviously this is much greater than anticipated for offices spaces.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'>Initially the process load was 30% with my <u>proposed design</u>, but after the modifications the process load was roughly 50% of my total energy consumption. To my knowledge the only other option we have to is document each piece of equipment contributing to the process load.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'>Has anyone encountered the problem before and have advice on a solution?<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'>Thanks in advance.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Optima LT"'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-family:"Optima LT";color:#1A2A6C'>Daniel Kaler<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-family:"Optima LT";color:#1A2A6C'>Energy Engineer, EIT<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:6.0pt;font-family:"Optima LT";color:#1A2A6C'><o:p> </o:p></span></b></p><div style='border:none;border-top:double #002060 2.25pt;padding:1.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:6.0pt;font-family:"Optima LT";color:#1A2A6C'><o:p> </o:p></span></b></p></div><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:12.0pt;font-family:"Optima LT";color:#1A2A6C'>MEP ASSOCIATES<o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:10.0pt;font-family:"Optima LT";color:black'>engineers | consultants | commissioning<o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><span style='font-size:8.0pt;font-family:"Optima LT";color:black'>MEP Associates, LLC | 2720 Arbor Court | Eau Claire, WI 54701<o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center'><span style='font-size:8.0pt;font-family:"Optima LT";color:black'>Phone: 715.832.5680 | Fax: 715.832.5668 |www.mepassociates.com</span><span style='font-size:8.0pt;font-family:"Optima LT"'><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>