in relation to energy efficiency, the combination of an outdoor temperature or ambient temperature (Tj) and bin hours (hj)

hours per season or per year at which an outdoor temperature or ambient temperature occurs for each bin

coefficient of performance specific for every binj with outdoor temperature Tj in a season or in the year, derived from the part load, declared capacity or declared cooling demand and declared coefficient of performance (COPd(Tj)) for specified bins (j) and calculated for other bins through interpolation/extrapolation, when necessary corrected by the degradation coefficient

cooling demand for every bin in the year, calculated as the rated cooling capacity multiplied by the part load ratio, expressed in kW to two decimal places