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To help refine the original prompt: This is a little bit like asking "is a ball-peen hammer an accurate choice for hitting a nail?" </div>
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In the hands of a skilled craftsman, this hammer option presents as an excellent choice for many situations. In the hands of someone still learning the trade, using this hammer will result in sub-optimal outcomes over other purpose-built options and of course
any hammer will inevitably miss the nail sometimes based on user error. It may be tempting to blame the hammer, but there's the old adage "a good craftsman never blames his tools."</div>
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Rounding back, eQuest/doe2 is one of many platforms that can do most things very well (depending on the skill/experience of the wielder). It does have shortcomings in specific circumstances over alternatives, but then like any craftsman I prefer to wear more
than one tool on my belt to cover different challenges ;-).</div>
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~Nick</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Equest-users <equest-users-bounces@lists.onebuilding.org> on behalf of jra_sac via Equest-users <equest-users@lists.onebuilding.org><br>
<b>Sent:</b> Sunday, May 9, 2021 6:31:38 AM<br>
<b>To:</b> Fred Betz <fbetz@aeieng.com>; equest-users@lists.onebuilding.org <equest-users@lists.onebuilding.org>; Saroj Lamichhane <213saroj@gmail.com><br>
<b>Subject:</b> Re: [Equest-users] Accuracy of eQUEST</font>
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<p><span style="color:#ff0000">[External email: Use caution with links and attachments]</span></p>
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<div dir="auto">Good points, Fred. I still do not understand the fist of the question !@</div>
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<div dir="auto" style="font-size:85%; color:#575757">Sent from my T-Mobile 4G LTE Device</div>
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<div>-------- Original message --------</div>
<div>From: Fred Betz <fbetz@aeieng.com> </div>
<div>Date: 5/8/21 2:23 PM (GMT-08:00) </div>
<div>To: John Aulbach <jra_sac@yahoo.com>, equest-users@lists.onebuilding.org, Saroj Lamichhane <213saroj@gmail.com>
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<div>Subject: RE: [Equest-users] Accuracy of eQUEST </div>
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<p class="x_MsoNormal">Garbage in, garbage out. </p>
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<p class="x_MsoNormal">If the model inputs accurately reflect what’s is really happening, then yes it’s fairly accurate. Which is true for a lot of modeling tools.
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<p class="x_MsoNormal">Things like weather, schedules (occupancy, lights, equipment, etc.) can frequently be very different than reality, which can lead to a pretty wide range of results.
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<p class="x_MsoNormal">If you only want to use default inputs and typical weather and compare that to a real building data, then be prepared to have a 50% difference or more from what’s measured.
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<p class="x_MsoNormal">Hope that helps. </p>
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<p class="x_MsoNormal">Fred</p>
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<p class="x_MsoNormal" style="line-height:12.75pt"><b><span style="font-size:10.0pt; font-family:"Verdana",sans-serif; color:#282826">Fred Betz</span></b><span style="font-size:10.0pt; font-family:"Arial",sans-serif; color:#282826">,
</span><span style="font-size:10.0pt; font-family:"Arial",sans-serif; color:#282826">PhD,</span><span style="font-size:10.0pt; font-family:"Arial",sans-serif; color:#282826"> LEED® AP
</span><span style="font-size:10.0pt; font-family:"Arial",sans-serif; color:#282826">BD+C</span></p>
<p class="x_MsoNormal" style="line-height:12.75pt"><b><span style="font-size:8.5pt; font-family:"Verdana",sans-serif; color:#282826">Building Performance</span></b><span style="font-size:8.5pt; font-family:"Verdana",sans-serif; color:#595954"><br>
</span><span style="font-size:7.5pt; font-family:"Arial",sans-serif; color:#595954">(D) 608-236-1175</span><span style="font-size:8.5pt; font-family:"Verdana",sans-serif; color:#595954"> </span><span style="font-size:8.5pt; font-family:"Verdana",sans-serif; color:#FF422D">|</span><span style="font-size:8.5pt; font-family:"Verdana",sans-serif; color:#595954"> </span><span style="font-size:7.5pt; font-family:"Arial",sans-serif; color:#595954">(M)
608-444-4857</span><span style="font-size:8.5pt; font-family:"Verdana",sans-serif; color:#595954"> </span><span style="font-size:8.5pt; font-family:"Verdana",sans-serif; color:#FF422D">|</span><span style="font-size:8.5pt; font-family:"Verdana",sans-serif; color:#595954"> </span><span style="font-size:7.5pt; font-family:"Arial",sans-serif; color:#595954">(O)
608-238-2616</span><span style="font-size:8.5pt; font-family:"Verdana",sans-serif; color:#595954"><br>
</span><u><span style="font-size:7.5pt; font-family:"Arial",sans-serif; color:#282826"><a href="https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Faeieng.com%2F&data=04%7C01%7CNicholas.Caton%40se.com%7C1aefa7388d5f4522456108d91268b473%7C6e51e1adc54b4b39b5980ffe9ae68fef%7C0%7C0%7C637561063183460069%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0&sdata=A4%2BARtzb4GY3lIt%2Fkk4nXbpmW9ZhXBzB%2BLJrxLdACV8%3D&reserved=0" originalsrc="https://aeieng.com/" shash="QLZF9s1/3aKhghqaCQnNI8Nj/AwFQW/7sk/MQ1j6+BdwtgaNAeM06jD4gl6sVMLyzs6fs9R9easw3nlV8nXMPVTYzEqjA6yI9r7dPdbxndF+AGbGKm4R/JMPCcSvvHAijU+H+1LS0FypbQH3u27Qkn4KmFNMgri2aORJxTJ00+s="><span style="color:#282826">Affiliated
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</span><span style="font-size:7.5pt; font-family:"Arial",sans-serif; color:#595954">5802 Research Park Boulevard
</span><span style="font-size:8.5pt; font-family:"Verdana",sans-serif; color:#FF422D">|</span><span style="font-size:7.5pt; font-family:"Arial",sans-serif; color:#595954"> Madison, WI 53719</span><span style="font-size:8.5pt; font-family:"Verdana",sans-serif; color:#595954"></span></p>
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<p class="x_MsoNormal"><b>From:</b> John Aulbach <jra_sac@yahoo.com> <br>
<b>Sent:</b> Saturday, May 8, 2021 12:30 PM<br>
<b>To:</b> equest-users@lists.onebuilding.org; Saroj Lamichhane <213saroj@gmail.com><br>
<b>Subject:</b> Re: [Equest-users] Accuracy of eQUEST</p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Verdana",sans-serif">Hello:</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Verdana",sans-serif">Not sure about the question you are asking.</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Verdana",sans-serif">DOE-2 (the engine of eQuest) has been around since the late 1970s. I know the creators and researchers have done countless benchmarking simulations against existing buildings
to make the program viable. I myself have done runs against buildings with sub metering and the tracking has always been excellent.</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Verdana",sans-serif">Also, when I have run EEMs against a Base model, and had those modifications M&V'd later, they always seem to match.</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Verdana",sans-serif">So I think there should not be a worry of the accuracy of eQuest/DOE-2.</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Verdana",sans-serif">John R. Aulbach, PE</span></p>
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<p class="x_MsoNormal"><span style="font-size:10.0pt; font-family:"Helvetica",sans-serif; color:#26282A">On Friday, May 7, 2021, 07:58:33 PM PDT, Saroj Lamichhane via Equest-users <<a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a>>
wrote: </span></p>
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<p class="x_MsoNormal"><span style="font-size:10.0pt; font-family:"Helvetica",sans-serif; color:#26282A">Hello everyone,</span></p>
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<p class="x_MsoNormal"><span style="font-size:10.0pt; font-family:"Helvetica",sans-serif; color:#26282A">Does anybody have information about the effective modeling capability (Accuracy) of eQUEST with respect to the building parameters? Have a nice weekend!</span></p>
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<p class="x_MsoNormal"><span style="font-size:10.0pt; font-family:"Helvetica",sans-serif; color:#26282A">Thank you!</span></p>
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<p class="x_MsoNormal"><span style="font-size:10.0pt; font-family:"Helvetica",sans-serif; color:#26282A">Saroj Lamichhane</span></p>
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