This prerequisite is a big one, not only because it’s required for all projects, but also because it feeds directly into here on LEEDuser.

What’s New in the LEED v4.1 beta

The baseline ratchets up to ASHRAE 2016. This means that LEED is likely now ahead of most local energy codes.

What’s New in LEED v4

• ASHRAE 90.1-2007 has been updated to ASHRAE 90.1-2010.
• Process energy no longer has to make up 25% of the overall building energy for your baseline and proposed simulation models.
• USGBC now requires you to achieve prerequisite compliance without accounting for the cost of generating renewable energy onsite.
• For data centers, USGBC requires that building power and cooling infrastructure provides 2% of the required 5% energy cost reductions.
• For Option 2, LEED now includes a prerequisite that the standard for compliance uses the 50% savings version of the AEDG instead of the 30% savings version of the AEDG. This represents an expected savings of 50% over ASHRAE 90.1–2004.
• To achieve the prerequisites for Options 2 and 3, your project must follow ASHRAE 90.1–2010 mandatory and prescriptive requirements.