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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='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hi Ramana,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hope you are doing well. This is a tricky aspect of the ASHRAE90.1. But if you are modeling for LEED, I would refer to the Advanced Energy Modeling for LEED: Technical Manual where it explicitly says:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Baseline case: Do not take credit for automatic lighting controls, such as daylight controls, occupancy controls, or programmable controls.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Proposed Case: Model any daylight-responsive lighting control systems in proposed design. <b>Also model occupant sensor lighting controls (Table G3.1, No. 6) in spaces where they are not mandatory; note that such controls are mandatory in<o:p></o:p></b></span></p><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>classrooms, conference rooms and employee lunch and break rooms (Section 9.4.1.2).<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></b></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>So, either I take credit for Occup. Sensors in both the cases for conf/meeting rooms or not take it.<o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></b></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hope this helps,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Jude.<o:p></o:p></span></p><div><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width=624 style='width:6.5in;border-collapse:collapse'><tr style='height:16.8pt'><td width=139 nowrap valign=top style='width:104.3pt;padding:.2in 0in .2in 0in;height:16.8pt'><p class=MsoNormal><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#498871'>Judhajit Chakraborty</span></b><b><span style='font-size:7.0pt;font-family:"Arial","sans-serif";color:#498871'><o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#498871'>Built Ecology Specialist</span><span style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p></o:p></span></p></td><td width=145 nowrap valign=top style='width:108.85pt;padding:.2in 0in .2in .1in;height:16.8pt'><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'>405 Howard Street</span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'>Suite 500 <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'>San Francisco CA 94105</span><span style='font-family:"Calibri","sans-serif";color:navy'><o:p></o:p></span></p></td><td width=135 nowrap valign=top style='width:101.45pt;padding:.2in 0in .2in .1in;height:16.8pt'><p class=MsoNormal><span style='font-size:7.0pt;font-family:"Arial","sans-serif";color:#8CB4A1'>T. </span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'>+1 415 398 3833</span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:7.0pt;font-family:"Arial","sans-serif";color:#8CB4A1'>D.</span><span style='font-size:7.0pt;font-family:"Arial","sans-serif";color:#1F497D'> </span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'>+1 415 402 5815<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:7.0pt;font-family:"Arial","sans-serif";color:#8CB4A1'>F. </span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'>+1 415 433 5311</span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:navy'><o:p></o:p></span></p></td><td width=205 nowrap valign=top style='width:153.4pt;padding:.2in 0in .2in .1in;height:16.8pt'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:7.0pt;font-family:"Arial","sans-serif";color:#8CB4A1'>E</span><span style='font-size:7.0pt;font-family:"Arial","sans-serif";color:navy'>.</span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:navy'> </span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'><a href="mailto:judhajit.chakraborty@wspfk.com"><span style='color:black'>judhajit.chakraborty@wspfk.com</span></a></span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal align=right style='text-align:right'><span style='font-size:7.0pt;font-family:"Arial","sans-serif";color:#8CB4A1'>W.</span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'> <a href="http://www.built-ecology.com/"><span style='color:black'>built-ecology.com</span></a></span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:navy'><o:p></o:p></span></p></td></tr></table><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'><img border=0 width=83 height=110 id="_x0000_i1026" src="cid:image002.png@01CCB013.CED53C10" alt="Description: Description: built-ecology"></span><span style='font-size:11.0pt;font-family:"Arial","sans-serif";color:navy'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#969696'>A specialist service of WSP Flack + Kurtz<o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";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"'> bldg-sim-bounces@lists.onebuilding.org [mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Nick Caton<br><b>Sent:</b> Thursday, December 01, 2011 10:02 AM<br><b>To:</b> ssavich@systemswestengineers.com; Ramana Koti; Bldg-Sim<br><b>Subject:</b> Re: [Bldg-sim] ASHRAE 90.1 Baseline LPD and occupancy sensor credit<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Reviewing Table G3.1.6.g., I see more than one right answer. You can revise either the installed lighting power (LPD) OR the associated scheduling – I should think both approaches equally acceptable. I personally revise the LPD values.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>This is inherently a “clear as mud” sort of topic since you need to bounce between so many parts of 90.1 to get the full picture, so I’ll try to bullet the logic simply:<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span style='font-size:11.0pt;font-family:Symbol;color:#1F497D'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Prescribed LPD’s from chapter 9 are representative of what should be in the baseline. <o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span style='font-size:11.0pt;font-family:Symbol;color:#1F497D'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Prescribed baseline are representative of any applicable required occ. sensors. They should not be modified in any fashion in the baseline model.<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span style='font-size:11.0pt;font-family:Symbol;color:#1F497D'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Proposed lighting LPD’s as defined (using either the space-by-space or whole building method), may apply the prescribed reductions to the proposed installed LPD (10/15%) BUT ONLY against fixtures in spaces containing such controls that are not otherwise required to have them.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>A simple example for illustration:<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo4'><![if !supportLists]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Proposed office space and an employee lunch/break room each have a designed LPD of 0.80<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo4'><![if !supportLists]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Baseline model could use 1.0 W/SF for both spaces (whole building / 90.1-2007)<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo4'><![if !supportLists]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><span style='mso-list:Ignore'>3.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Since the break room is required to have an occ. sensor, the proposed break room stays at 0.80 W/SF.<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo4'><![if !supportLists]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><span style='mso-list:Ignore'>4.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Since an office space is not required to have an occ. sensor, the proposed office space gets a reduction: 10% of 0.80 = 0.08, so the revised LPD is 0.72 W/SF.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>~Nick<o:p></o:p></span></p><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><img border=0 width=119 height=37 id="Picture_x0020_1" src="cid:image003.jpg@01CCB013.CED53C10" alt="cid:489575314@22072009-0ABB"></span><b><span style='font-size:11.0pt;font-family:"Stylus BT","sans-serif";color:#2D4D5E'><o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Stylus BT","sans-serif";color:#2D4D5E'><o:p> </o:p></span></b></p><p class=MsoNormal><b><span style='font-family:"Stylus BT","sans-serif";color:#2D4D5E'>NICK CATON, P.E.<o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:7.5pt;font-family:"Calibri","sans-serif";color:#CC9900'>SENIOR ENGINEER<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:7.5pt;font-family:"Calibri","sans-serif";color:#CC9900'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#2D4D5E'>Smith & Boucher Engineers</span><span style='font-size:7.5pt;color:#CC9900'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#2D4D5E'>25501 west valley parkway, suite 200<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#2D4D5E'>olathe, ks 66061<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#2D4D5E'>direct 913.344.0036<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#2D4D5E'>fax 913.345.0617<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="www.smithboucher.com" title="blocked::www.smithboucher.com"><span style='font-size:10.0pt'>www.smithboucher.com</span></a></span><u><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:blue'> </span></u><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";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"'> bldg-sim-bounces@lists.onebuilding.org [mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Steven Savich<br><b>Sent:</b> Thursday, December 01, 2011 11:35 AM<br><b>To:</b> 'Ramana Koti'; 'Bldg-Sim'<br><b>Subject:</b> Re: [Bldg-sim] ASHRAE 90.1 Baseline LPD and occupancy sensor credit<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Ramana,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>90.1-2007 Table G3.1 section 6 under Baseline Building Performance states: " . . . No automatic lighting controls (e.g. programmable controls or automatic controls for daylight utilitzation) shall be modeled in the <i>baseline building design</i>, as the lighting schedules used are understood to reflect the mandatory control requirements in this standard."<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>You should not be adjusting the power density number to simulate lighting controls, but adjusting the schedules to reflect occupancy sensor operation. For example, say there are a number of offices and conference rooms in the proposed building that will have occupancy sensor controls. This should be simulated by inputting the LPD or actual connected load, and creating a schedule with a 10% - 15% reduction for each hour of operation per Table G3.2. In the LEED baseline model, the schedule for the offices would be not have the occupancy sensor reduction, but the conference room and other spaces required by 90.1 to have occupancy sensor control would use the reduced schedule. Clear as mud?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Steven<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><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"'> bldg-sim-bounces@lists.onebuilding.org [mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Ramana Koti<br><b>Sent:</b> Thursday, December 01, 2011 8:21 AM<br><b>To:</b> Bldg-Sim<br><b>Subject:</b> [Bldg-sim] ASHRAE 90.1 Baseline LPD and occupancy sensor credit<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>All,<o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal>This question pertains to a LEED energy model per the ASHRAE 90.1 Appendix G. Occupancy sensors are required in spaces such as conference rooms and employee lunch/break rooms per Section 9.4.1.2 and no lighting power density credit can be taken for their use in the proposed design model.<o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal>My question is, do the baseline maximum LPDs prescribed by ASHRAE, say 1.3 W/sf for conference rooms, already account for the power 10 or 15% adjustment for occupancy sensor use or does the credit have to be manually applied on top of the 1.3 W/sf in the Baseline model?<o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal>Thank you,<o:p></o:p></p></div><div><p class=MsoNormal>Ramana Koti.<o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div></div></body></html>