»årlige ækvivalente varmepumpetimer« (HHP) det skønnede antal timer pr. år, hvor en varmepumpe skal levere varme ved nominel ydelse for at levere den samlede brugbare varme fra varmepumper, udtrykt i h
‘annual equivalent heat pump hours’ (HHP) means the assumed annual number of hours a heat pump has to provide heat at rated capacity to deliver the total usable heat delivered by heat pumps, expressed in h;