Project typeRenovation
Location31840 Hessisch Oldendorf
ClientHarperath Masuch GbR
Year of construction2022
System capacity8.8 kWp
Energy savings7,200kWh/h kWh/year
DescriptionThis property underwent an energy efficiency renovation. New insulation and windows reduced energy consumption by 60%. The remaining heating demand of the existing building is met by a heat pump from CTC. The heat pump features an excellent COP of 4.4, a high flow temperature and a modulating output of between 4 and 22kW. The electricity required is generated primarily by the new photovoltaic system. A 12kWh battery storage system with a backup power function and a 1000l thermal store with hygienic hot water preparation store surplus energy from the photovoltaic system for periods when the sun is not shining. This covers 70% of the existing building's energy needs (electricity and heating). Together with the savings achieved through modernisation, this amounts to total savings of approximately 90%.