[Equest-users] BEPS report not jiving with total energy consumption in LEED template

[David Reddy]

Amy,
Have you double-checked the billing units of the STEAM-METER (i.e. the 
ENERGY/UNIT)?
David

On 3/20/2015 1:04 PM, Nathan Miller wrote:
>
> Bruce,
>
> Don’t you have that reversed? In the BEPS report MBTU = 1,000,000 BTU, 
> which would more commonly be MMBTU in industry jargon…  Just do the 
> math to convert kWh -> MBTU in some of the electric usage entries.
>
> Example:
>
> I have a job with 4.4 MBTU of electric usage for HP Supplement in the 
> BEPS. 4.4 MBTU * 1,000,000 BTU/MBTU * 1 kWH/3413 BTU = 1289 kWh, which 
> roughly lines up with the 1277 kWh reported in BEPU.
>
> You might find the LV-M report useful when looking at the units eQUEST 
> uses, it shows 1 MWH = 3.412969 MBTU, but MWH most certainly DOES NOT 
> equal KWh… as it also has a conversion for 1 kWh = 3.412969 kBTU…
>
> **
>
> *Nathan Miller, PE, LEED AP BD+C**– */Mechanical Engineer/Senior 
> Energy Analyst/**
>
> *RUSHING*| *D*206-788-4577 |*O*206-285-7100
>
> *www.rushingco.com <http://www.rushingco.com/>***
>
> *From:*Equest-users 
> [mailto:equest-users-bounces at lists.onebuilding.org] *On Behalf Of 
> *Bruce Easterbrook
> *Sent:* Friday, March 20, 2015 3:47 PM
> *To:* Harmon, Amy; equest-users at lists.onebuilding.org
> *Subject:* Re: [Equest-users] BEPS report not jiving with total energy 
> consumption in LEED template
>
> Hi Amy,
> Old US units, MBTU in eQuest is 1,000 BTU's, ie kBTU.
> Bruce Easterbrook P.Eng.
> Abode Engineering
>
> On 20/03/2015 03:06 PM, Harmon, Amy wrote:
>
>     I received the following LEED reviewer comment.
>
>     /The annual energy consumption for purchased chilled water and
>     purchased steam has been reported in Table EAp2-4 and EAp2-5 in
>     units of kBtu, whereas the eQuest BEPS reports the energy
>     consumption in units of MBTU (million Btus).  As a result the
>     total annual energy consumption of 4,317 MMBtu for the Proposed
>     Case and 5,663 MMBtu for the Baseline Case does not agree with the
>     total energy consumption shown in the BEPS reports of 12,713 MMBtu
>     for the Baseline Case.  Please update the Form as required to
>     ensure that Tables EAp2-4 and EAp2-5 accurately reflect the
>     results reported in the eQUEST BEPS modeling output reports./
>
>     I believe it deals with units but for the life of me I can’t get
>     the numbers to jive.  This project utilizes district steam and
>     chilled water.  I calculated the DES virtual steam rate is
>     $16.57/MBtu and chilled water is $4.99/MBtu.  I assume that’s
>     1,000,000 Btus and not 1,000 Btus).  In the EAp2 template, I have
>     my units of Energy for these set to kBtu and demand as MBH.
>
>     Any help in troubleshooting this problem would be 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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>
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