Projectsheet

Klima, das sich rechnet
Monovalentheat supply in
the energy-saving house
Storage Tank
Drinking water
Heat pump
Heating
Borehole heat
exchanger
Cooling
Energy-saving house in Berlin-Mitte
9 residential units on 1300 m²
Completed in: 2010
Geo-Enservice
Planning, construction and management
GeoSave energy system
Heat pump,
groundwater circulation well 61 kW heating,
29 kW cooling
Mains current
Geothermal
energy
Heat
Electricity
Cold
Gas
The modern energy-saving house combines maisonette and regular apartments as well as a commercial unit on the ground floor for art
and culture professionals. The monovalent energy system heats through a heat pump which supplies geothermal heat through two
Geo-Engroundwater circulation wells. The location in Berlin-Mittehas a powerful aquifer and thus, is well-suited for groundwater
geothermal energy. The groundwater circulation wellextracts groundwater, feeds it into the heat pump and back into the aquifer. The
suction and injections wells are placed approximately twenty meters apart from one another in the groundwater circulation well and are
only located in a single borehole. In summer the groundwater is directly used for cooling the building. This so-called passive cooling
manages without operating a cooling machine and delivers the comfort of air-conditioning almost free of cost.Thehigh performance of
the groundwater circulation wells and of coaxial structure of both well systems enables the construction of this large geothermal system
on such a limited available space.