Zero Balance – CO2 neutral energy supply
Thoroughly thought out building can completely generate its energy itself. Whether for hot water production, heating or cooling, with the IMMOSOLAR “Zero – Balance” concept, the object can be completely supplied with renewable energy CO2-neutral (see graphic).

Beside the structural-physical aspects, the intelligent conjunction of energy generators, storage tanks and consumers is the key to energy efficiency.
Above all, the direct coupling of solar thermal energy, geothermal energy and photovoltaic systems make CO2-neutral urban development possible.
The EnergyManagementSystem (EMS) is the central control- and hydraulic unit. The EMS makes sure that all energy flows are utilized depending on temperature and demand. Solar energy is directly forwarded to the loads on demand, or stored intermediately for later utilization. Here, service water storage tank, buffer storage tank, coolant storage tank and closed underground brine systems are loaded or unloaded according to priority.
The solar collectors cover the largest part of the hot water production and a part of the heating energy. Furthermore, the solar energy is supplied with temperatures below 30°C, which cannot be used for hot water and heating, thermoactive component systems, underground brine storage tanks or drill probes and stored intermediately. The stored energy is lifted in the heating period by means of the heat pump to a temperature level usable for heating purposes. By the solar temperature increase in the heat source, the COP of the heat pump is essentially higher in comparison with traditional systems.
The energy transfer to the rooms takes place by low temperature area systems and/or thermoactive component systems.
This not only clearly increases solar output and the efficiency of the total systems, but also the well-being by comfortable room climate. The electrical energy required to run compressors, pumps etc. is generated by an accordingly dimensioned photovoltaic-system. The energy generated from the solar cells is directly fed into the network of the energy supplier and sold. Due to supply laws and attractive supply tariffs, the photovoltaic systems not only pay off, but also generate an appealing return beside the power– last but not least, a further contribution to the profitability of the total investment.