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The University of Colorado is again taking a leadership role in promoting energy efficiency.��Recently an energy requirement of ≤0.31 kWh/day/cu.ft. has been placed on new Ultra-Low Temperature (ULT) freezers purchased within the CU system. CU Anschutz led this initial procurement effort which has now been adopted systemwide.��

Significant progress has been made to improve the energy efficiency of ULT freezers over the past 15 years and thus, fortunately, there are many ULT freezers from different manufacturers to choose from that meet CU’s energy requirement. Additionally, procurement has been reaching out to supplier representatives to minimize instances where researchers are quoted for units that do not meet the requirement. ��ñ���� scientists have been selecting energy efficient ULT freezers for many years now.�� As a result, nearly all ULT freezer purchases made by ��ñ���� in recent times are already meeting this requirement.

makes it possible to know if a particular ULT freezer of interest to your lab meets the requirement. For a particular make and model, simply look at the product details for that ULT freezer on the Energy Star site to see if the “Daily Energy Consumption” is 0.31 kWh/day/cu.ft. or less. �� Not all Energy-Star rated ULT freezers will meet the requirement.

This move by the CU system sets an example for other research campuses to adopt. The collective power of research dollar spending can shift markets towards improved resource efficiency and sustainability. Together we can make positive change!