[Bldg-sim] LEED 2012 Third Public Comment Now Open

Bishop, Bill bbishop at pathfinder-ea.com
Wed Mar 14 08:08:23 PDT 2012


The Third Public Comment period is open until March 20th.
I see that the option for calibrated modeling for M&V was removed from the second draft and is now included in Pilot Credit 27: Reconcile Projected and Actual Energy Performance:
http://www.usgbc.org/DisplayPage.aspx?CMSPageID=2104 (Pilot credits page)
http://www.usgbc.org/ShowFile.aspx?DocumentID=8202 (Pilot Credit 27)

ASHRAE 90.1-2010 is used for the EA credits.
The energy performance improvement levels required to achieve points for the Optimize Energy Performance credit have been lowered since the second draft, presumably because the goal of 90.1-2010 was to reduce energy costs 30% relative to 90.1-2004 and it will be considerably more difficult to demonstrate savings compared to 90.1-2007. For example, 16% energy cost savings is good for 3 points in LEED 2009 for New Construction, but is 6 points in LEED 2012.

Bill


-----Original Message-----
From: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Jason Glazer
Sent: Thursday, March 01, 2012 11:06 AM
To: bldg-sim at onebuilding.org
Subject: [Bldg-sim] LEED 2012 Third Public Comment Now Open

http://www.usgbc.org/DisplayPage.aspx?CMSPageID=2360

-- 
Jason Glazer, P.E., GARD Analytics, 90.1 ECB chair
Admin for onebuilding.org building performance mailing lists
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