Figure

Cooling degree days

Figure Created 29 Oct 2021 Published 20 Jan 2022 Last modified 20 Jan 2022

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The cooling degree days index represents a proxy for the energy demand for cooling buildings. It is computed from the outdoor air temperature as cumulated daily deviation above a given base temperature threshold from April to September (see the ETC-CCA Technical Paper for details). The temperature threshold, period and formulation of this index can vary according to the local climate and applications. A base temperature of 22 °C is considered here as representative for assessing the energy demand at the pan-European scale and daily minimum, mean and maximum temperature values are used as input ECVs.