<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body dir="auto">I would follow the IPMVP protocol, which is a statistical correlation. My experience - you'll spend a lot of time working on schedules.<div dir="auto"><br></div><div dir="auto">Shaun</div><div><br></div><div align="left" dir="auto" style="font-size:100%;color:#000000"><div>-------- Original message --------</div><div>From: Ahmad Fraij via Equest-users <equest-users@lists.onebuilding.org> </div><div>Date: 8/25/23 5:56 PM (GMT-08:00) </div><div>To: equest-users@onebuilding.org </div><div>Subject: [Equest-users] eQUEST Model Calibration Against Hourly Data </div><div><br></div></div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;" class="yahoo-style-wrap"><div data-setdir="false" dir="ltr">Hello,</div><div data-setdir="false" dir="ltr"><br></div><div data-setdir="false" dir="ltr">I have been asked by one of my clients to do calibration of eQUEST model against hourly energy data of different systems. They will send me 60 to 90 days energy data for various equipment such as pumps, cooling towers, air conditioning units, lighting...etc and they want me to calibrate the model against these hourly data. These hourly data will be collected during ASHRAE Level III energy audit.</div><div data-setdir="false" dir="ltr"><br></div><div data-setdir="false" dir="ltr">I have done many calibration against the monthly energy data from the actual bills but this is the first time I have been asked to do it against the hourly data so, can you please explain to me how to do it against the hourly data? Thanking you in advance.</div><div data-setdir="false" dir="ltr"><br></div><div data-setdir="false" dir="ltr">Is it done by adding up the hourly data from the energy audit measurements to make it monthly data and then compare it against the data for each system in PS-F simulation report? But how we can do that if the customer providing only 60 to 90 days hourly data and not for a full year?</div><div data-setdir="false" dir="ltr"><br></div><div data-setdir="false" dir="ltr">Your help will be highly appreciated.</div><div data-setdir="false" dir="ltr"><br></div><div data-setdir="false" dir="ltr">Regards</div><div data-setdir="false" dir="ltr"><br></div><div data-setdir="false" dir="ltr">Ahmad</div><div data-setdir="false" dir="ltr"><br></div></div></body></html>