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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-US link=blue vlink=purple id=compText><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Debra,<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'>My first reaction is that if you break out the demand charges from the utility rates you use for Connecticut you are going to reward any demand reduction with EAc1 energy cost savings, negating the need or justification for an ID point.<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'>Regarding how to calculate peak demand savings - assuming you are doing an energy model for the building, and you are modeling the peak-reduction measures, the model will provide results for monthly peak demand reduction. I don’t think average hourly demand reduction and average monthly peak demand values are appropriate when looking at demand savings. It would be more appropriate to compare 12 monthly peak values for the baseline and 12 (lower) peak values for the proposed design that coincide with the same 15 minute period of the month as each of the 12 monthly peaks of the baseline. It could be tricky to determine exactly when these 15 minute periods should occur if you are not modeling the measures. A good guestimate for summer months would be to take the peak demand periods for each month provided by your model (without the demand-saving measures) and subtract the PV output and daylighting savings contributions at that time of day for full sunlight. I suggest reviewing the LEED guidelines for CHP to determine how to get credit for it, but that is also already covered and I doubt it falls into ID credit territory.<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'>Regards,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Bill<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><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><img width=486 height=116 id="Picture_x0020_1" src="cid:image001.jpg@01CC6CAF.53D7CCF0" alt="Senior Energy Engineer"><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>dlombard@earthlink.net<br><b>Sent:</b> Tuesday, September 06, 2011 3:46 PM<br><b>To:</b> bldg-sim@lists.onebuilding.org<br><b>Cc:</b> debra lombard<br><b>Subject:</b> [Bldg-sim] Innovation-In-Design credit for Peak Demand Reduction NOT demand response<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><blockquote style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt;margin-left:0in;margin-top:5.0pt;margin-bottom:5.0pt'><blockquote style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt;margin-left:0in;margin-top:5.0pt;margin-bottom:5.0pt'><blockquote style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt;margin-left:0in;margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'>Hi Everyone,<br><br>I am working on a LEED-NC v2.2 project which is small but has three technologies that reduce peak demand which is critical here in Connecticut.<br><br>My question is how to calculate that % reduction in peak demand to go for an Innovation-In-Design credit for Peak Demand Reduction NOT demand response as seen in Pilot Credit 8.<br><br>We feel that the Calculation should be as follows:<o:p></o:p></span></p><p><b><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#60BF00'>Calculations: </span></b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Total average hourly electricity demand reduction (TAHEDR) of building</span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>OVER</span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Avg. Monthly peak demand of the building WITHOUT the MCHP, PV, or Daylighting </span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p><p><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>AND</span></b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> the energy use reduction of the building </span><u><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:red'>from the energy model</span></u><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>OVER</span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>the total energy use of the building WITHOUT the MCHP, PV, or Daylighting.</span><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:10.0pt;color:black'>The focus of this credit is to show how much energy is being offset by the sustainable power systems and how they are the reducing burden of the utility in terms of pollution reductions. (lbs/CO2, NOx, SOx, etc.).</span><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'><br><br>Anyone feel otherwise or agree? Please let me know.<br><br>Thank you very much!<br>Debra Lombard, LEED AP, EMIT, EIT<br>dlombard@earthlink.net<o:p></o:p></span></p></blockquote><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p></blockquote></blockquote></div></body></html>