There are several significant energy related changes proposed in LEED 2012 rating systems at http://www.usgbc.org/DisplayPage.aspx?CMSPageID=2516
Referencing ASHRAE 90.1-2010 was a foregone conclusion but it also gets into source energy use intensity, data center modeling guidelines and many more fascinating new areas.

Here is our second opportunity to comment and I do not believe they necessarily will offer us a third.

Paul Riemer
DUNHAM