Energy Efficiency

Farewell to Traditional Compressor-Based Refrigeration?

ULT freezers with a compressor-based cascade refrigeration system can use as much energy as a typical U.S. household annually. C Cascade systems use synthetic refrigerants which cause ozone depletion. The technology can achieve this degree of cooling by using 100% natural refrigerants. A freezer with a Stirling cooling system became the industry's first Energy Star Certified ultra-low temperature freezer, setting the standard. Some utilities and institutions are paying incentives for Stirling Cooling Freezers to influence the market. These systems contain only two moving parts (a piston and a displacer), have no valves, and No oil and gas bearings, which also reduces the maintenance costs. A 2015 My Green Lab Study, Market Assessment of Energy Efficient Opportunities in Laboratories identified that there are 440,000 to 890,000 ULT Freezers in the ULT freezer energy savings. California labs alone could save up to $59 million per year by replacing compressor based on estimated ULTFreezers.