Combined Cycle Power Plants
General Information
- Description
- Benefits
As in simple cycle applications the gas turbine is the main drive for power generation. To improve overall efficiency, exhaust heat from the gas turbine is used to produce steam for the generation of additional electricity by a steam turbine.
Reference Power Plants for Combined Cycle Application
Our Siemens combined cycle (SCC®) reference power plants (RPP) provide flexibility for easy selection of options to meet specific site and customer needs. This, together with a pre-designed balance of plant, results in short project lead times. It provides an optimum balance between capital cost, plant performance, and operational and maintenance considerations. Pre-engineered modular options have been developed to further address individual needs, as well as life-cycle cost enhancements.
- High efficiency
- Superior reliability and availability
- Low life-cycle costs
- Optimized profitability
- Rapid implementation
- Environmental compatibility
Our Portfolio (6)
Power Plant SCC6-5000F 1x1 Flex-Plant™ 10
- Description
- Benefits
The SCC6-5000F 1x1 Flex-Plant™ 10 is designed around the SGT6-5000F, which is the only frame gas turbine-generator that can generate 150 MW in less than 10 minutes, reaching full load in 12 minutes without imposing additional maintenance impacts. The power plant uses a simplified single-pressure non-reheat bottoming cycle with an air-cooled heat exchanger for backpressure steam condensing to provide a net efficiency of over 48%. Through the use of air cooling, the SCC6-5000F 1x1 Flex-Plant™ 10 uses minimal water to operate. It is the only combined cycle power plant to qualify for the non-spinning reserve market.
Main Components
- A Siemens gas turbine (SGT®): SGT6-5000F
- A Siemens steam turbine (SST®): SST-800
- A Siemens generator (SGen®): SGen6-1000A
- A heat recovery steam generator (HRSG). single-pressure non-reheat drum with standard SCR/CO catalytic reactor
- An air-cooled heat exchange for stream condensing
Performance Figures and Boundary Conditions
- Efficiency: 48.9%
- Capacity: 275 MW
- Design point: 85 °F
- Air-cooled heat exchanger for steam condensing
- High efficiency peak to intermediate load
- Fast start plant with high efficiency
- Very low plant water consumption
- Low startup emissions
- Qualifies for non-spinning reserve market