Date
Inquiry

It appears that most data centers that have recently pursued LEED certification have been successful using a \'mixed use\' model, in which the data center is a component of a larger office building. Based on this model and the definition of \'Process Load\' in ASHRAE Standard 90.1-99 ("energy consumed in support of a manufacturing, industrial or commercial process other than conditioning spaces and maintaining comfort and amenities for the occupants of a building"), it is our interpretation that the energy required to power and cool the data center electronics is not included in the baseline energy calculation under the Energy & Atmosphere credit category. (Ref: CIR 4/11/2003 and Ruling 5/5/2003). This leads us to believe that an appropriate venue for credit contribution associated with data center energy reduction initiatives is in the Innovation & Design category. With the rise in bandwidth requirements, optical fiber versus copper has significant energy savings advantages. Energy savings associated with power and cooling of a 10Gbyte/s optical network vs. 10G copper network can range from 75-85% depending on port count. Further, innovative high fiber count pre-terminated optical solutions vs. traditional patch-cord solutions reduce cabling congestion and optimize air flow in the server racks and raceways further reducing cooling energy requirements. Will Innovation & Design credits be considered for the following? 1. Installed cabling infrastructure that provides improved energy efficiency over another. 2. A Pre-Terminated high fiber count optical solution vs. Patch-Cord optical solution.

Ruling

The applicant is requesting confirmation whether the installation of more efficient network components (i.e., high fiber count pre-terminated optical connections) in data centers may be considered for an innovation in design credit. Copper based data transfer media is increasingly being replaced by fiber optic lines in the data transfer industry. As such, the proposed strategies are not innovative strategies for energy savings, and are therefore not eligible to achieve an innovation in design credit. Applicable Internationally.

Internationally Applicable
On
Campus Applicable
Off
Credits