Highly efficient energy solution for a detached house
A holistic, future-oriented energy concept was realised for a spacious detached house near Seevetal, which PVT hybrid collectors, heat pump technology and seasonal storage intelligently with each other.
Project type: Detached house
Location: Maschen (Nds.)
Modules: 48 × PRISMA® PVT 3.0
Heat pump: M-Tec brine/water heat pump
Thermal storage: 100,000 litre swimming pool (winter operation)
System design: Bivalent with log boiler
Modern energy system with PRISMA® PVT technology
Double energy production with PRISMA® PVT
The 48 PRISMA® PVT 3.0 modules generate simultaneously electricity and usable heat. While the solar power contributes to the house's self-supply and supports the operation of the heat pump, the thermal energy generated is fed directly to the source side of the heat pump system. This combined utilisation increases solar efficiency by more than three times compared to conventional photovoltaic systems.
This project is an example of how professional regenerative energy solutions can be realised at the highest technical level, even in single-family homes.
Swimming pool as seasonal heat storage
A special feature of the project is the utilisation of the 100 m³ Swimming pool as seasonal storage heating season. This solution improves the source temperatures and increases the efficiency of the entire system. The heat pump extracts the thermal energy fed into the swimming pool in summer and autumn. This ensures high source temperatures and a high COP for a long time during the heating season. Even during the winter on sunny days, brine temperatures from the PVT system of up to +15°C can be extracted into the swimming pool via the plate heat exchanger. This is a special feature of insulated PRISMA® PVT 4.0 collectors.
Efficient heat pump as the system core
An M-Tec brine/water heat pump utilises the environmental energy provided by the PVT modules as a heat source. This creates stable and particularly efficient operating conditions - even in the cold season. At the same time, the even temperature control of the heat source contributes to reliable performance throughout the year.
Bivalent support for maximum safety
The system is bivalent executed. A Log boiler supplements the heat pump and provides additional heating output at very low outside temperatures or peak loads. The result is a robust and sustainable combination of renewable energy and regionally available fuel.
