This measure is for the purchase and installation of a new refrigerator meeting ENERGY STAR or ENERGY STAR Most Efficient criteria. An ENERGY STAR refrigerator must be at least 20 percent more efficient than the minimum federal government standard. The ENERGY STAR Most Efficient is a new certification that identifies the most efficient products among those that qualify for ENERGY STAR. ENERGY STAR Most Efficient refrigerators must be at least 30 percent more efficient than the minimum federal standard. Algorithms The general form of the equation for the ENERGY STAR Refrigerator measure savings algorithm is: Total Savings =Number of Refrigerators x Savings per Refrigerator To determine resource savings, the per-unit estimates in the algorithms will be multiplied by the number of refrigerators. The number of refrigerators will be determined using market assessments and market tracking. If the volume and configuration of the refrigerator is known, the baseline annual energy models’ consumption (kWhbase) may be are determined using Table 253. The efficient annual energy consumption (kWhEE or kWhME) may be determined using models’ test data for the given model. Where test data is not available the algorithms in manufacturers’ Table 253 and Table 255 for STAR and ENERGY STAR Most Efficient maximum “ENERGY energy usage in may be used to determine the efficient energy consumption for a kWh/year” conservative savings estimate. ENERGY STAR Refrigerator =kWhbase kWhEE ΔkWh – =(kWhbase- kWhEE)/Hours * CF ΔkWpeak ENERGY STAR Most Efficient Refrigerator =kWhbase kWhME ΔkWh – =(kWhbase- kWhME)/Hours * CF ΔkWpeak Definition of Terms kWhbase = Annual energy consumption of baseline unit kWhEE = Annual energy consumption of ENERGY STAR qualified unit
This measure is for the purchase and installation of a new refrigerator meeting ENERGY STAR or ENERGY STAR Most Efficient criteria. An ENERGY STAR refrigerator must be at least 20 percent more efficient than the minimum federal government standard. The ENERGY STAR Most Efficient is a new certification that identifies the most efficient products among those that qualify for ENERGY STAR. ENERGY STAR Most Efficient refrigerators must be at least 30 percent more efficient than the minimum federal standard. Algorithms The general form of the equation for the ENERGY STAR Refrigerator measure savings algorithm is: Total Savings =Number of Refrigerators x Savings per Refrigerator To determine resource savings, the per-unit estimates in the algorithms will be multiplied by the number of refrigerators. The number of refrigerators will be determined using market assessments and market tracking. If the volume and configuration of the refrigerator is known, the baseline models’ annual energy consumption (kWhbase) may be are determined using Table 253. The efficient models’ annual energy consumption (kWhEE or kWhME) may be determined using manufacturers’ test data for the given model. Where test data is not available the algorithms in Table 253 and Table 255 for “ENERGY STAR and ENERGY STAR Most Efficient maximum energy usage in kWh/year” may be used to determine the efficient energy consumption for a conservative savings estimate. ENERGY STAR Refrigerator ΔkWh =kWhbase – kWhEE ΔkWpeak =(kWhbase- kWhEE)/Hours * CF ENERGY STAR Most Efficient Refrigerator ΔkWh =kWhbase – kWhME ΔkWpeak =(kWhbase- kWhME)/Hours * CF Definition of Terms kWhbase = Annual energy consumption of baseline unit kWhEE = Annual energy consumption of ENERGY STAR qualified unit
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