ENERGY STAR Ice Makers
The RTF approved a new Small Saver UES for ENERGY STAR Ice Makers. The previous ice maker UES, approved in 2008, was deactivated in 2013 primarily due to a lack of regional interest. However, in light of a new ENERGY STAR specification that went into effect in January 2018 the RTF allocated resources to developing a new measure at the end of last year. There are two general categories of ice maker, batch and continuous. Batch-type icemakers operate with alternate freezing and harvesting periods and typically produce cube-type ice. Continuous-type ice makers continually freeze and harvest ice at the same time and primarily produce flake or nugget ice. For both types, energy saving opportunities arise from efficiencies in heat exchangers, compressors, fans and motors. An ENERGY STAR batch ice maker is ~10% more efficient than a standard model while an ENERGY STAR continuous ice maker is ~16% more efficient. For this new measure, identifiers are broken out to align with the ENERGY STAR specification. While there is some uncertainty around duty cycle, the RTF opted to assume a 60% duty cycle rather than ENERGY STAR’s 75%, the measure being a small saver means that no additional research is warranted.