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A full or part test in accordance with the relevant Standard to verify the performance or energy consumption, or both, of an individual brand and model bearing an energy label.
The estimate of energy used by a model or single unit during one year's use. It assumes a particular number of uses in one year (refrigerators and freezers are assumed to run continuously). (Units: kilowatt hours/year)
A factor used to calculate clothes dryer star ratings that takes account of the over-drying that occurs in timer and manual clothes dryers compared to autosensing dryers.
The nominal energy consumption of an appliance. For all appliances, except air conditioners, it is based on the average projected annual energy consumption for the appliance. (Units: kilowatt hours/year) For air conditioners it is based the estimate of energy used by a single unit per hour of use at rated power for cooling and/or heating as applicable. (Units: kilowatt hours/hour). The Comparative Energy Consumption appears on the energy label.
The nominal energy consumption of an appliance of a given rated capacity with a Star Rating of 1.00. (Units: kilowatt hours/year)
The number of stars displayed on the energy label. Available stars are between a minimum of one and a maximum of six, shown in half star intervals. The star rating is calculated from the Star Rating Index and is always rounded down to the nearest half star.
An indication of the claimed energy efficiency of an appliance. A higher Star Rating Index indicates higher energy efficiency. The Star Rating Index is a decimal version of the star rating. Simply speaking this is a more exact version of the star rating. Whereas a star rating is always stated in half stars (or whole numbers on the old label), the SRI is given to one decimal place. For example, one appliance may have an SRI of 4.1 whilst a comparable appliance may score 4.4, both units would be labelled as 4 star rated but the unit with the higher SRI would in fact be more efficient.
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