[Equest-users] Electric Peak Demand

[Harmon, Amy]

Hi Nick:
I’ve attached two screenshots of the graphical reports for this project.
The “elec consumption.jpg” graphical report matches with the BEPU report.  This is what I used as the “energy use” input on the LEED template.
As I look at the “elec demand.jpg”, I see where the max kw equals 34.022 with the total being 408.1 kw.  The reviewer did comment that the PS-F report said the max kw for lights was 34.022 kw.
Are you saying I should be using the “elec demand.jpg” graphical report to input the “demand” on the LEED template?  I assume I would I use the 408.1 kw total and not 34.0 kw that’s used per month.   Correct?
Thanks,


Amy Harmon
Mechanical Engineer
Scheeser Buckley Mayfield LLC
1540 Corporate Woods Parkway
Uniontown, OH 44685
Phone: (330) 896-4664 ext. 107
Direct: (330) 526-2707
Fax: (330) 896-9180

From: Nicholas Caton [mailto:ncaton at catonenergy.com]
Sent: Monday, March 02, 2015 2:56 PM
To: Harmon, Amy; Steve Jacobs; equest-users at lists.onebuilding.org
Subject: RE: [Equest-users] Electric Peak Demand

Amy:  Sounds like a simple mix-up.

The BEPU report displays annual consumption totals for each meter.  The PS-F reports by contrast include both consumption sums and demand values corresponding to the hour of maximum draw for each end-use (scroll to the bottom for annual peaks and consumption totals).

You might find it easier for documenting your first few LEED models to reference the graphical end-use reports for consumption and demand – that’s how I started out:
[cid:image001.png at 01D054FF.E3243920]
[cid:image002.png at 01D054FF.E3243920]



NICK CATON, P.E.
Owner

Caton Energy Consulting
  1150 N. 192nd St., #4-202
  Shoreline, WA 98133
  office:  785.410.3317
www.catonenergy.com

From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org<mailto:equest-users-bounces at lists.onebuilding.org>] On Behalf Of Harmon, Amy
Sent: Monday, March 02, 2015 10:38 AM
To: Steve Jacobs; equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>
Subject: Re: [Equest-users] Electric Peak Demand

I used the values found in the BEPU report to put in the online template.

From: Steve Jacobs [mailto:sjacobseng at gmail.com]
Sent: Monday, March 02, 2015 1:14 PM
To: Harmon, Amy; equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>
Subject: RE: [Equest-users] (no subject)

This doesn’t sound like an issue with your electric rates. They are saying that the actual peak demand that you reported in the LEED template does not match the peak demand by end use stated in the PS-F report. What was the source of the values you inputted in Table EAp2-5?




From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Harmon, Amy
Sent: Monday, March 2, 2015 2:48 PM
To: equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>
Subject: [Equest-users] (no subject)

I received the following comment back from USGBC and was hoping someone could help shed some light on this for me.

Table EAp2-5 indicates peak demands have been reported for the Baseline and Proposed cases; however, these values do not coincide with the energy modeling outputs provided.  For example, Table EAp2-5 indicates the Proposed Case lighting peak is 879.8 MBH (257.8 kWh); however, the PS-F report indicates the peak Proposed Case lighting power is 34.022 KW.  Review the energy modeling output reports and remove any demand value inconsistencies.

The project was designed around a uniform electric rate of $0.0703/kWh and this amount was entered in the Electric Utility Charge screen 4 of 7 in the wizard mode (photo attached).

Is the USGBC comment aimed at the utility rate or is it something that needs addressed back in Wizard mode?  If so, how do I go about fixing it?

Any help / guidance is much appreciated.
Thanks!


Amy Harmon
Mechanical Engineer
Scheeser Buckley Mayfield LLC
1540 Corporate Woods Parkway
Uniontown, OH 44685
Phone: (330) 896-4664 ext. 107
Direct: (330) 526-2707
Fax: (330) 896-9180
aharmon at sbmce.com<mailto:aharmon at sbmce.com>
www.sbmce.com<http://www.sbmce.com/>

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Thank you

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