There are many EGS power generation solutions commercially available:
Condensing plants (high temp. fluids)
Binary plants (low temp. fluids)
- ORC Organic Rankine Cycle (commonly isobutane)
- Kalina Cycles (NH3+ H2O)
Combined Cycles (steam + binary)
Open System
Closed System (OCR)
Closed System (Kalina)
Combined Cycle
Other design solutions
Axial flow turbines – most common
Radial inflow turbines – may be more efficient for low enthalpy fluids
Air cooled condensation
Water cooled condensation – especially in plants with CHP (combined heat/cold and power generation), and where water is abundant.
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