why does LEED-CS EAc1 documentation have to be so @#%^$ confusing?!

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I've asked this question before, but never really got a good answer, so
I'm trying again in case anyone has new info.

Has anyone successfully submitted a LEED v3 Core and Shell Energy Model?

Under v2.0, there was a LEED-CS EAc1 calculator explained here:

https://www.usgbc.org/ShowFile.aspx?DocumentID=6926

Spreadsheet link:

http://www.usgbc.org/ShowFile.aspx?DocumentID=6927

It was a great way to subtract out energy loads that the Owner/Developer
did not have control over.

However, under the new v3 Green Building Reference guide (includes NC,
CS, etc), they appear to have gotten rid of the sliding Developer/Tenant
scale, and now award just a different quantity of points for CS vs NC.
It certainly looks that way, and the v3 online template couldn't
possibly be more confusing to me, so I can't really tell by looking at
that.

Is this true? If so, it's a shame, because if you have a Core and Shell
project where there is an Owner requirement to provide a mechanical
system capable of supporting 5 Watts / sq ft tenant plug loads, you can
no longer back out the plug loads as an energy consumer "not controlled
by the Owner/Developer". I could reduce the plug load density to help
shrink the numerator/denominator, but that's not really an accurate
thing to do in a C&S project, since the Developer HAS to provide cooling
for 5 W / sq ft because of things like SFOs, specific tenant
requirements, etc. C&S projects are a completely different animal than
an NC project where you already know and can guarantee tenant loads.

That sucks. Can anyone confirm?

James Hansen, PE, LEED AP

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James,

I have nothing constructive to offer, except to:

1. Copy this query over to [Bldg-rate], which has less overall
activity but a pertinent and distinct group of subscribers from
[bldg-sim] - you may get additional useful input via that list.

2. Agree wholeheartedly with the subject line.

Actually, I might strike "CS" and just lump all of LEED v3 into there
=). I expect I'm not the only one (blindly?) hoping the leadership
within GBCI/USGBC are actively steering us towards a day where LEED
documentation, and EAc1 with its prereq's in particular, can be a
relatively less time/patience-consuming experience for everyone
involved.

Best of luck - I'll look forward to reading some better responses than
this one!

NICK CATON, E.I.T.

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