SGT6-2000E heavy duty gas turbine with low NOx emissions
The SGT6-2000E gas turbine is a proven, robust engine for the 60 Hz market used in simple cycle or combined cycle processes with or without combined heat and power supply. It is suitable for all load ranges, including peak load. The SGT6-2000E offers outstanding fuel flexibility. It can be fired with low calorific gases or gases containing CO2, H2S, and N2, as well as with crude oil and other liquid fuels with high viscosity.
It provides low NOx emissions, even in the part load range. Today, more than 132 turbines have been sold, resulting in a fleet experience of over 12 million equivalent operating hours. The SGT6-2000E series fleet´s overall best-in-class reliability constantly exceeds 99.5%.
Key benefits of the SGT6-2000E gas turbine technology
The extensive fleet operating experience of the SGT6-2000E lets you benefit from best-in-class fleet reliability of > 99%. Its robust turbine design is continuously enhanced by high-performance upgrades.
Thanks to its fast start-up capability, you will achieve full load in only about 10 min. With its fast load change capability, in turn, you will meet the most stringent grid requirements for optimal frequency stabilization.
The SGT6-2000E offers dual-fuel capability and excellent fuel flexibility: It can be fired with low calorific gases or gases containing CO₂, H₂S and N₂, as well as with crude oil and other liquid fuels with high viscosity. The engine, equipped with DLE burners, is capable to burn up to 30 vol% of hydrogen (H2). It provides reliable start-up and changeover between fuels. The automatic changeover from the primary to the secondary fuel can be carried out at reduced base load.
This robust engine is suitable for a wide range of ambient conditions such as cold climates, hot and dry or dusty environments.
For hot and dry conditions, we offer these options to increase your power output:
An evaporative cooler or an inlet air chiller with heat exchangers to avoid performance degradation
A Wet Compression (WetC) system to enhance turbine performance by reducing compressor inlet temperatures and increasing the mass flow throughout the turbine
The SGT6-2000E is designed for easy maintenance to reduce outage times:
Rotor de-stacking/re-stacking on site
Blades can be individually replaced without rotor lifting
Vane carriers can be removed without rotor lifting
Minor inspections can be done through the spacious combustion chambers
SGT6-2000E technical features and power plant integration
Core engine
Package solutions
Power plants
Service
Fuels
Emissions
Ingenious design to the core
The SGT6-2000E core engine has a horizontally split casing and two walk-in combustion chambers, equipped with individually replaceable ceramic tiles. This design allows a hot-gas-path inspection without cover lift. The 17-stage axial-flow compressor with variable-pitch inlet guide vanes enhances peak load operation and supports frequency stabilization.
The robust 4-stage turbine incorporates the latest blade and vane design for stable, improved performance. The hybrid burners are able to operate in premix and diffusion mode with natural gas, fuel oil and special fuels such as heavy oil and refinery residues. The Low-NOₓ combustion system, single-digit NOₓ emissions can be achieved.
Superior fuel flexibility
Due to its external silo-type combustion chambers, the engine even runs on ash-forming fuels like crude or heavy-fuel oil (HFO).
Excellent part load performance
High part load efficiency and quick load changes due to fast-acting variable inlet guide vane.
Short installation times
The SGT6-2000E gas turbine package consists of the core turbine, the generator (SGen6-100A-2P) and auxiliary systems. It offers you a standardized basic design with options geared to your specific requirements. By using standard components and preassembly or prepackaging we achieve short installation times, with staggered delivery and early shipment of main components. We group subsystems and install them in separate auxiliary packages to minimize field assembly..
SGT5-2000E package layout
Designed for short installation times, all package piping is prefabricated to minimize pipe cleaning and welding on site.
Package footprint:
Length: 47 m (155 ft)
Width: 30 m (100 ft)
GT enclosure height: 9 m (30 ft)
Package auxiliaries
The package auxiliaries include the air intake system, exhaust gas system, power control center, instrumentation and control, fuel and lube oil system and electrical systems.
The SGT6-2000E fires up
We offer both simple cycle and combined cycle power plants with or without cogeneration. SGT6-2000E-based combined cycle plants (SCC6-2000E) have a fast-start capability. You can achieve combined cycle base load within only 8.5 min for start-up until full load with a start-up gradient of 27 MW/min. High load gradients allow for fast load changes. With excellent peaking capability, and high part load efficiency complying with emission regulations down to lower part load, this is your profitable solution for competitive energy markets with fluctuating power demand.
SGT6-2000E simple cycle power plant
SGT6-2000E simple cycle power plants are your ideal solution for peak load or standby. They can be commissioned and installed fast and cost-efficiently. The plants enable quick start-ups and fast load-following.
SGT6-2000E multi-shaft combined cycle plants
The SCC6-2000E multi-shaft combined cycle plants are based on one, two or more SGT5-2000E gas turbine packages and a steam turbine.
Optimized for short outages to maximize availability
We offer Long Term Programs (LTP), overhaul services, field service, spare parts, reconditioning of components and modernization upgrades. Whether scheduled service or short-term support, our specialists are there for you, on-site all over the world.
The SGT6-2000E generator package is optimized for short outages. Multiple borescopic inspection ports allow inspection of compressor and turbine blades without lifting covers. The heat shields on the combustion chamber are individually replaceable. All stationary and moving blades and all stationary blade and vane carriers can be replaced individually with the rotor in place.
Service-friendly design reduces maintenance outage time
The built disc-type rotor with radial Hirth serrations and one central tie bolt allows for on-site de-stacking and repair. Horizontal casing joints ensure good accessibility of all components.
Easy combustion chamber on-site maintenance
Manholes at the combustion chambers permit easy access for inspection and maintenance activities.
Fuel flexibility matters
The SGT6-2000E offers outstanding fuel flexibility: It burns natural gas, LNG, syngas, blast furnace gas, biogas, ethane, propane, condensate, distillate oil, heavy and crude oils, biodiesel, alcohols, naphtha or kerosene.
The gas turbine can also be fired with low-calorific gases or gases containing CO2, H2S and N2,or with up to 30 vol% of hydrogen (H2), as well as with crude oil and other liquid fuels with high viscosity.
Robust combustion system with silo chamber
The large-space silo combustion chambers enable the combustion of fuels with high viscosity.
Fast fuel switchover
Quick online fuel changeover from gas to oil and vice versa enhances operational flexibility.
Low emissions
The SGT5-2000E provides low NOₓ emissions, even in the partload range or using liquid fuels. NOₓ emissions at 15% O₂ dry:
Emissions on fuel gas at 15% O2, without water injection: NOX ≤ 25 ppmvd | CO ≤ 10 ppmvd
Wet fuel oil operation
For fuel oil operation, the SGT5-2000E uses water injection to control NOX emissions.
NOX emissions on fuel oil at 15% O2, with water injection: ≤ 42 ppmvd
Part load emission compliance
The SGT6-2000Ecomplies with NOX and CO emission standards even in 50% part load operation.
SGT6-2000E technical specifications and performance benchmarks
Simple cycle power generation
Combined cycle power generation
Physical dimensions
Performance data for simple cycle power generation
Gross power output
119 MW
Fuel (examples)
Natural gas, LNG, sour gases, distillate oil, biodiesel, crude oil, heavy fuel oil (HFO), kerosene, jet fuel, condensate. Other fuels on request
Frequency
60 Hz
Gross efficiency
35.5%
Gross heat rate
10,140 kJ/kWh (9,611 Btu/kWh)
Turbine speed
3,600 rpm
Pressure ratio
12.0 : 1
Exhaust mass flow
368 kg/s (811 lb/s)
Exhaust temperature
532°C (990°F)
NOₓ emissions
≤ 25 ppmvd at 15% O₂ on fuel gas (without water injection for NOₓ control),
≤ 42 ppmvd at 15% O₂ on fuel oil (with water injection for NOₓ control)
NOₓ emissions at 15% O₂ at ISO ambient conditions.
SCC6-2000E: Performance data for combined cycle power plant
Siemens combined cycle power plant
SCC6-2000E 1x1
SCC6-2000E 2x1
Gross power output
178 MW
356 MW
Gross plant efficiency
53.7%
53.7%
Gross heat rate
6,704 kJ/kWh (6,354 Btu/kWh)
6,704 kJ/kWh (6,354 Btu/kWh)
Number of gas turbines
1
2
Pressure/reheat
Dual/No
Dual/No
Physical dimensions and weight
Core engine
Approx. weight
108,000 kg (238,000 lb)
Length
9.1 m (30 ft)
Width
3.3 m (11 ft)
Height
3.3 m (11 ft)
Dimensions exclude combustion chambers.
Find out more about Siemens Energy gas turbine offerings
Experience the SGT6-2000E in commercial operation, worldwide
Today, more than 132 turbines have been sold, resulting in a fleet experience of more than 12 million equivalent operating hours. The SGT6-2000E fleet's overall best-in-class reliability constantly exceeds 99.5%.
Shoaiba II, Saudi Arabia (2013, upgrade to CC 2015)
Customer: Saudi Electricity Company
Power output: 1,200 MW
Scope: 2 x SCC6-2000E 5x1 with 10 x SGT6-2000E, 2 x SST6-4000, and 12 x SGen6-100A-2P
Hsinta, Taiwan (1998–1999)
Customer: Taiwan Power Company
Power output: 2,410 MW
Scope: 5 x SCC6-2000E 3x1 with 15 x SGT6-2000E , 5 x SST6-4000 , 20 x SGen6-1000A , Omnivise T3000
Manchester Street, United States (1995)
Customer: Dominion Energy Inc.
Power output: 450 MW
Scope: 3 x SGT6-2000E, and 3 x SGen6-100A-2P
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