Slide 1: ORC Module – Our solution at a glance
ORC Module – Our solution at a glance March 2026 Siemens Energy is a trademark licensed by Siemens AG. Siemens Energy, 2026 Geothermal Standard Presentation
Slide 2: What is an Organic Rankine Cycle?
ORC technology What is an Organic Rankine Cycle? Organic Rankine Cycle Organic Rankine Cycle • The Organic Rankine Cycle (ORC) is named after the Scottish engineer and physics 2 William John Macquorn Rankine (1820 – 1872) 1 G • Instead of water-steam, the ORC system vaporizes an organic, high molecu
Slide 3: How does the power plant work?
ORC technology How does the power plant work? Process flow scheme Benefits ORC vapor ORC turbine and generator to use ORC Geothermal technology water supply • No use of water Superheater • Simple and compact design Air cooled • Outdoor arrangement possible condenser • Recuperated and non- Evaporator
Slide 4: Siemens Energy ORC module: clean and efficient renewable baseload power plant
Siemens Energy ORC module The clean and efficient renewable baseload power plant Attractive CAPEX and low LCoE Combining the simplicity of the ORC-design and the ORC turbine based on SE proven steam turbine technology result in a cost-effective binary power plant. Environmentally sound solution No w
Slide 5: Features of ORC-technology
Features of ORC-technology Efficient Low investment costs • Highly efficient ORC-Turbine based on proven Siemens • Simple and compact plant design Energy steam turbine portfolio • Lower temperatures and pressures compared • Good part Ioad efficiency to conventional steam applications Reliable Low op
Slide 6: ORC Module (up to 20 MWe) 3D view
ORC Module (up to 20 MWe) 3D view Air cooled condenser Main features of the arrangement concept • Binary cycle ORC system (geothermal water as heat carrier) • Outdoor arrangement of the main equipment Recuperator • Electrical and control system containerized • Weather roof for turboset (rain & sun p
Slide 7: SST-600 ORC Turbine Up to 20 MWe same DNA as our Steam Turbines
SST-600 ORC Turbine Up to 20 MWe same DNA as our Steam Turbines LP vapor inlet (as option) High Synergy between SE Steam Turbine Technology and ORC Axial exhaust • Reaction Blading Technology • >90% turboset efficiency (@ Generator terminal) HP vapor inlet • In-between bearing concept • Axial exhaus
Slide 8: SST-600 ORC Turbine Generator Set: Technical Data & Layout Arrangement
SST-600 ORC Turbine Generator Set Up to 20 MWe Technical Data & Layout Arrangement Technical Data • Inlet Parameters • Pressure: up to 40 bara • Temperature: up to 300°C • Exhaust Pressure: based on cycle design Generator • Speed: 3000 RPM with gear box • Power Range: 10 – 20 MWe gross • Inlet Conne
Slide 9: ORC Module (up to 60 MWe) 3D view
ORC Module (up to 60 MWe) 3D view Fin-fan coolers Main features of the (optional) arrangement concept Electrical • Binary cycle ORC system system PCC1 (geothermal water as heat carrier) Control room • Outdoor arrangement of main equipment Air cooled condenser • Electrical and control system containe
Slide 10: ORC Module (up to 60 MWe) 3D views
ORC Module (up to 60 MWe) 3D views March 2026 Siemens Energy, 2026 Geothermal Standard Presentation 10