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Egeothermal heat pumps
highly efficient and consistent performance all year round
Free geothermal energy is used for heating and domestic water heating via the thermodynamic heat pump process.
Geothermal heat pump with geothermal probes
Geothermal heat pumps - also brine water heat pumps called - use the heat stored in the earth and available free of charge. The geothermal heat pump is particularly powerful and offers convincing advantages, both for owners and for the environment. As a rule, it is sufficient to penetrate just a few meters into the ground in order to gain temperatures there that can be converted into heating heat with the help of the heat pump. Those who opt for a geothermal heat pump can also benefit from various subsidies - this makes the switch to geothermal energy immensely easier.
Further technology of geothermal heat pumps
The geothermal basket
The patented BetaTherm geothermal basket is used in the area of so-called near-surface geothermal energy and is considered to be a comparatively inexpensive solution that can be implemented quickly.
Compared to air heat pumps, brine-to-water heat pumps have a significantly longer service life, use less energy (electricity) and have lower operating costs. In addition, in contrast to the air heat pumps, the geothermal heat baskets and brine-water heat pumps are not visible from the outside and there are no noise emissions.
The surface collector
Geothermal collectors are part of the brine-water heat pump and are laid in the ground to recover the heat stored there for heating and hot water.
The ground collectors of the brine-water heat pump use the heat stored in the0.8 m to 1.6 m deep soilfor theHeatingand the hot water. The collectors of the brine-water heat pump are average, toogeothermalcalled, at a depth of 1.5 m. The heat energy in the ground caused by thisheat pumpcan be obtained comes from solar radiation, precipitation and the interior of the earth. At this depth there is one almost all year roundconstant temperature of 10 °C. It is therefore well suited for the use of horizontally laid ground collectors
groundwater heat pump
Groundwater can also be a useful energy source for the operation of a heat pump. Even on the coldest days, groundwater temperatures are constant at around 10°C, which enables extremely efficient operation of a heat pump. If groundwater is available in sufficient quantity, temperature and quality and not too deep, this heat source can be tapped with a water-water heat pump.
In summer, this technology can be used for passive cooling in an energy-saving way. In passive operation, the heat pump remains switched off and the heat is only extracted from the house by the operation of a circulation pump and discharged into the groundwater via the intake well. This cools your house down by a few degrees in summer.
Promotion of well construction:
Ground source heat pumps get a high subsidy, especially for ground drilling. Here's an example
Additionally on the funding from BAFA, KfW, BEG, the city of Cologne, etc.
further funding from the "funding program: progres-nrw-climate protection technology (near-surface geothermal well system)" can be applied for via the district government of Arnsberg.
Well construction for the heat supply of a water-water heat pump is funded with a flat-rate grant in the amount of the delivery rate (deep well pump) and the delivery rate from the water law application with:
1 euro per liter / hour flow rate of the deep well pump
Funding example:
- Heat output heat pump 20kW
- 1kW ≙ min. 250l/h (volume flow deep well pump)
- 20kW x 250l/h = min. 5,000l/h (a higher flow rate may be required depending on the heat pump manufacturer and system configuration)
- Sponsored by progress.nrw
- at least 5,000 euros