<p class="MsoNormal"><span lang="EN-US">Hi, I’ve found
the attached figure showing “potential impact/benefit” of energy modeling and “degree
of effort” <span> </span>along the different <span> </span>stages of design in various publications, an
in none of them it was properly explained.</span></p>

<p class="MsoNormal"><span lang="EN-US">Maybe
someone can help me understand the following:</span></p>

<p class="MsoListParagraphCxSpFirst" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"></p><ol><li><span lang="EN-US" style="font-family:Symbol;mso-fareast-font-family:Symbol;mso-bidi-font-family:
Symbol;mso-ansi-language:EN-US"><span><span style="font:7.0pt "Times New Roman"">         </span></span></span><span lang="EN-US">Why
are there local maximums of “impact/benefits” at the end of the “Construction Documents”
and “Construction management” faze?</span></li><li><span lang="EN-US" style="font-family:Symbol;mso-fareast-font-family:Symbol;mso-bidi-font-family:
Symbol;mso-ansi-language:EN-US"><span><span style="font:7.0pt "Times New Roman"">         </span></span></span>Why
does degree of effort decreases during “Construction documents” and “construction
management”</li><li><span lang="EN-US" style="font-family:Symbol;mso-fareast-font-family:Symbol;mso-bidi-font-family:
Symbol;mso-ansi-language:EN-US"><span><span style="font:7.0pt "Times New Roman"">         </span></span></span><span lang="EN-US">Units
at vertical axis? What are they measuring?<span> 
</span>“Degree of effort”, meaning time and $$; “potential impact/benefit” <span> </span>meaning %of energy saving?</span></li></ol><p></p>





<p class="MsoNormal"><span lang="EN-US">I’ve
tracked down this figure to this two ASHRAE publication, still seems not to be
the “developing” source.</span></p>

<p class="MsoNormal"><span lang="EN-US"><br></span></p><p class="MsoNormal"><span lang="EN-US">ASHRAE
Journal September 2004, “Integrated design for sustainable buildings”</span></p>

<p class="MsoNormal"><span lang="EN-US"><br></span></p><p class="MsoNormal"><span lang="EN-US">ASHRAE
Green Guide, Second Edition. Page 73, chapter 5.:</span></p><p class="MsoNormal"><span lang="EN-US"><br></span></p>

<p class="MsoNormal" style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal;mso-layout-grid-align:none;text-autospace:none"><span lang="EN-US" style="font-size:10.0pt;font-family:"Times New Roman","serif";mso-ansi-language:
EN-US">“Figure 5-1 conceptually shows the impact of providing design input at
succeeding</span></p>

<p class="MsoNormal" style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal;mso-layout-grid-align:none;text-autospace:none"><span lang="EN-US" style="font-size:10.0pt;font-family:"Times New Roman","serif";mso-ansi-language:
EN-US">stages of a project relative to the cost and effort required. The solid
curve shows</span></p>

<p class="MsoNormal" style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal;mso-layout-grid-align:none;text-autospace:none"><span lang="EN-US" style="font-size:10.0pt;font-family:"Times New Roman","serif";mso-ansi-language:
EN-US">that it is much easier to have a major impact on the performance
(potential energy savings, water efficiency, maintenance costs, etc.) of a
building if you start at the very</span></p>

<p class="MsoNormal" style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal;mso-layout-grid-align:none;text-autospace:none"><span lang="EN-US" style="font-size:10.0pt;font-family:"Times New Roman","serif";mso-ansi-language:
EN-US">earliest stages of the design process; the available impacts diminish
thereafter as you</span></p>

<p class="MsoNormal" style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal;mso-layout-grid-align:none;text-autospace:none"><span lang="EN-US" style="font-size:10.0pt;font-family:"Times New Roman","serif";mso-ansi-language:
EN-US">proceed through the subsequent design and construction phases. A
corollary to this</span></p>

<p class="MsoNormal" style="margin-bottom:0cm;margin-bottom:.0001pt;line-height:
normal;mso-layout-grid-align:none;text-autospace:none"><span lang="EN-US" style="font-size:10.0pt;font-family:"Times New Roman","serif";mso-ansi-language:
EN-US">is that the cost of implementing changes to improve building performance
rises at</span></p>

<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;line-height:115%;
font-family:"Times New Roman","serif";mso-ansi-language:EN-US">each successive
stage of the project (cost is shown as the dotted curve of this graph).”</span><span lang="EN-US"> </span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;line-height:115%;
font-family:"Times New Roman","serif";mso-ansi-language:EN-US"><br></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;line-height:115%;
font-family:"Times New Roman","serif";mso-ansi-language:EN-US">Thanks!</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;line-height:115%;
font-family:"Times New Roman","serif";mso-ansi-language:EN-US"><br></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;line-height:115%;
font-family:"Times New Roman","serif";mso-ansi-language:EN-US">Regads,</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;line-height:115%;
font-family:"Times New Roman","serif";mso-ansi-language:EN-US">Santiago. </span></p>

<p class="MsoNormal"><span lang="EN-US"> </span></p><p class="MsoNormal"><span lang="EN-US"><br></span></p>