抄録
Currently, the only way to know the power consumption of a residential refrigerator is to check the data listed in the product catalog. However, there are many reports that this value differs from the actual value. Therefore, in this study, I developed a statistical model to estimate the amount of electricity consumed by refrigerators from utility bill data. To create the statistical model, this study collected 72 sets of refrigerator data that were operating from 1995 to 2018 and conducted statistical analysis.
As a result, it was found that the annual electricity consumption of refrigerators had a high correlation with the quarterly electricity consumption of four types. Therefore, we define the refrigerator power index (IRx), which is an index of QEx based on QE1 By using this value as a variable in the RSVD (Regularized Singular Value Decomposition) method, we were able to obtain a more accurate value than the catalog value. Finally, we analyzed approximately 40,000 individual surveys using the RSVD method and created a statistical model formula for the annual power consumption of refrigerators.
