Geothermal ORC-power - GEOCAL®

GEOCAL®-„geological caloric"describes our organic rankine cycle product line for the use of geothermal energy. The name GEOCAL® stands for power plants that offer the technological solution to raise vast geothermal potentials based on the organic rankine cycle process. By help of this process it is made possible, to tap reservoirs of geothermal energy in temperature ranges from 100°C up to 250°C (212°F up to 482°F) for the generation of electricity which are unable to be developed with the water steam cycle.

In competition with other thermodynamic cycle processes GEOCAL®-geothermal -organic rankine cycle-modules achieved the highest theoretical electrical efficiency in temperature ranges typical for the geological formations in middle Europe because of their sophisticated construction properties and data of chemical media.

1. Verdampfer
1. Evaporator
2. Frischdampfleitung
2. Fresh steam pipe
3. ORC-Turbine
3. ORC-turbine
4. Generator
4. Generator
5. Rekuperator
5. Recuperator
6. Kondensator
6. Condenser
7. Speisepumpe
7. Feed pump
8. Nasskühlturm
8. Cooling tower
9. öffentliches Netz
9. Power grid
10. Thermalwässer
10. Thermal water
11. Bohrloch
11. Drill hole
Key figures waste heat recovery
Electrical power output:0.5 - 5.0 MW
Thermal power output:3.0 - 35.0 MW
Operating period:7,500 h p.a.
Manpower requirements:0.1 - 4.0 persons
GEOCAL® geothermal ORC-power

GEOCAL® animation

Geothermal energy in Germany

  • The ORC-working fluid GL 160 (geothermal liquid) that had been patent protected by GMK is eco-friendly, free of any fluorine, non toxic and therefore offers the ideal premises for an area covering use in geothermal ORC-power plants.

  • The known geothermal resources of Germany are vast. They are sufficient to provide Germany's annual electrical base load of 300,000 GWh over a timeframe of 600 years.*