How do you calculate heat pump efficiency? To ensure energy-efficient and eco-responsible practices, assessing your heat pump performance is a must! Their efficiency is calculated using 3 key indicators, namely COP, ETAS and SCOP. COP This stands for ‘coefficient of performance’, with a focus on evaluating heat pumps in heating mode at a precise temperature. It is the ratio between the amount of energy produced and consumed or used. In short, the higher the COP rating, the more efficient your heat pump. ETAS Expressed as a %, ‘theoretical seasonal energy efficiency’ (or ‘ETAS’) is calculated by converting the SCOP into primary energy, i.e., dividing the SCOP by approximately 2.5. Introduced under the European ErP directive on eco-design for heating appliances, ETAS serves to benchmark the performance of heat pumps against alternative heating systems, particularly boilers. To obtain a French energy savings certificate (CEE), heat pumps must score an ETAS greater than or equal to: 111% medium- to high-temperature heat pumps 126% low-temperature heat pumps Did you know? According to France’s National Environmental Agency, Ademe, a minimum of ‘3’ represents a solid COP score. How is COP calculated? Heating mode output/electrical power use. Example: COP = 3.5 kW/1 kW = 3.5 SCOP This HP Keymark-certified metric measures heat pumps’ ‘seasonal coefficient of performance’ in heating mode. Unlike COP, it factors in energy consumption throughout a heating season. As a result, SCOP is regarded as a more reliable indicator of performance since it more accurately represents real-life operating conditions. SCOP temperatures tend to be either 35°C, which is best suited to heat pumps installed with underfloor heating, or 55°C to better reflect radiators. Alfea Monobloc SCOP at 35°C: 4.79 to 4.94 Alfea Extensa A.I. SCOP at 35°C: 4.45 to 4.53 This performance index helps to rate an appliance in terms of its energy class: Between 3.4 and 4 Between 4 and 4.6 Between 4.6 and 5.1 > 5.1 In SCOP terms, our heat pumps achieve outstanding performance, ranging from 4.12 to 4.94. This applies to: 19 Heat pumps
RkJQdWJsaXNoZXIy NTAwMTk1