The SGT-800 is a powerful and flexible industrial gas turbine from Siemens Energy with a power output of up to 62 MW, designed for a wide range of applications like industrial power generation, oil and gas operations, and combined cycle plants.

What are the main applications of the SGT-800 gas turbine?

The SGT-800 is ideal for both industrial power generation and oil and gas applications. It supports combined cycle, cogeneration (CHP), and grid support functions—whether for base, intermediate, or peaking loads.

How efficient is the SGT-800 in combined cycle and CHP plant configurations?

In a 2x1 combined cycle setup, the SGT-800 achieves a net plant efficiency of over 60%. In CHP (cogeneration) cycles with supplementary firing, efficiencies greater than 92% are attainable.

What makes the SGT-800 environmentally friendly?

It features world-class low emission levels, with single-digit CO emissions and NOx as low as 9 ppm. Low emissions are possible with both gas and liquid fuels, without water injection, and the system meets stringent global and regional regulations.

How reliable is the SGT-800 gas turbine fleet?

The average fleet reliability of core engine and auxiliary systems is 99.1% (2024), attributed to its simple, robust technical solutions and long-proven record worldwide.

What fuels can the SGT-800 use?

The SGT-800 offers maximum flexibility, running on natural gas, Diesel No.2, or dual fuel (with on-load fuel changeover). It’s also capable of burning up to 75% hydrogen by volume and supports high biofuel content.

What maintenance options are available for the SGT-800?

A modular, compact design ensures easy maintainability, with long intervals between overhauls and robust service concepts—including 48-hour core engine exchange to maximize uptime.

Is the SGT-800 “H2-Ready”?

Yes, Siemens Energy is the first manufacturer to receive TÜV SÜD’s independent “H2-Ready” certification for a power plant concept based on the SGT-800, ensuring hydrogen integration and investment security for the future.

How does the SGT-800 perform in extreme climates?

There are standard options for both hot and cold environments, ensuring reliable performance and efficiency even in harsh ambient conditions.

What successful projects feature the SGT-800?

Examples include the Leipzig CHP plant in Germany (2 x SGT-800 with SIESTART battery storage) and the SeaFloat barge-mounted plant for Seaboard Corporation, which combines SGT-800 turbines, an SST600 steam turbine, and battery storage.

What support and services are offered for SGT-800 operators?

Siemens Energy provides a comprehensive, global service portfolio, including preventive maintenance, fast core swaps, and expert support, with teams available 24/7 in English, Spanish, and German.

SGT-800 gas turbine: substantial steam-raising capability

With a proven record of 620 successful installations and over 20 million operating hours worldwide, demonstrating an industry-leading reliability rate of 99.1%, the SGT-800 gas turbine is well-suited for industrial power generation as well as oil and gas applications.

This outstanding gas turbine delivers efficiency, reliability, and environmental compatibility, resulting in low lifecycle costs and optimal return on investment. The SGT-800 is compatible with both combined cycle and cogeneration configurations due to its outstanding efficiency and substantial steam-raising capability. Designed for operational flexibility, it is suitable for base load, intermediate load, and grid support operations.

Decarbonization pathways for gas turbines

Did you know that gas turbines will play a major role in ensuring a secure power supply in the age of decarbonization? Find out more in our white paper! Read more

The combustor and burner designs offer world-class emission performance over a wide load range with single-digit CO emission levels and capable of down to 9 ppm NOx emissions. Low emissions are also achieved with liquid fuel without the need of water injection.
Designed to reduce environmental impact, the SGT-800 gas turbine will help you meet even the strictest emission regulations worldwide.

The SGT-800 features a compact, modular, maintenance-friendly design. This maintainability combined with the turbine’s robust single-shaft arrangement, long time between overhauls and long lifetime ensures its high operational availability.
Flexible service concepts for on-site or off-site maintenance with possibility for 48-hour core engine exchange will maximize the availability even further.

Green biofuels: A proven fuel for gas turbines

SGT-800 classic package

The classic package comprises preassembled modules with the gas turbine and gearbox on a single base frame.
Mechanical auxiliary systems are mounted on a separate skid within the enclosure.
A modular package allows for easy transportation and straightforward on-site installation.
On-site maintenance, inspections, and overhauls are conveniently performed within the enclosure, providing added ease and efficiency.

(Image: Configuration depending on rating)

SGT-800 single-lift package

The single-lift package is a preassembled unit available in two configurations: as a single-lift driver unit(i.e. gas turbine, gearbox and mechanical auxiliary systems on a single base frame) with the generator on the foundation, or as a complete skid-mounted train for 3-point mount installations, e.g. for power barges (SGT-800 SeaFloat).
It offers a small footprint and the potential for a 48-hour core engine exchange.
The single-lift operation of the driver unit or complete train results in a short installation and commissioning time on site.
A special US-adapted option is available for specific requirements.

(Image: Configuration depending on rating)

SGT-800-based power plants

Flexibility and efficiency are key for your power plant solutions. The excellent efficiency and steam-raising capability of the SGT-800 gas turbine make it outstanding in cogeneration – also called combined heat and power (CHP) – and combined cycle installations.

Siemens Energy offers a wide variety of power plant configurations, based on one or more SGT-800 gas turbines. The standard plant configurations offer a high degree of flexibility. This allows for the optimization of plants to suit specific requirements, such as island-mode operation or multiple power blocks.

Flexible maintenance – high availability

The comprehensive service portfolio ensures low life cycle costs and optimal performance throughout the turbine’s life cycle, including:

Long Term Programs (LTP)
Overhaul service
Field service
Spare parts
Service exchange
Remote diagnostic service
Modernization and upgrades

The SGT-800 offers high operational availability, providing up to 60,000 equivalent operating hours (EOHs) between major overhauls, and offering flexible, standardised maintenance concepts based on either time or cycles. Package solutions offer on-site maintenance or modular overhaul, while the single-lift package provides off-site maintenance and the option of a 48-hour core engine exchange.
Designed for easy maintenance, the compact and modular setup of the SGT-800 allows for convenient access. The vertically split compressor casing enables straightforward on-site component replacement, and the burners can be swiftly removed for maintenance inspections.

Fuel flexibility matters

The SGT-800 offers gas-only, liquid-only (diesel No. 2) or dual-fuel (gas/liquid) options, with on-load fuel-changeover capability. Its excellent fuel flexibility allows for a high content of inert gases, hydrogen and heavy hydrocarbons in the gas fuel composition with no impact on maintenance. The engine, which is equipped with DLE burners, can burn up to 75 vol% hydrogen (H₂).

The low gas supply pressure requirement (27–31 bar(a)/390–450 psi(a)) reduces the need for a gas compressor on site.

Best-in-class NOₓ and CO emission levels

All SGT-800 units are equipped with a robust dual-fuel Dry Low Emission (DLE) combustion system to minimize NOₓ and CO emissions. The combustor and burner designs offer world-class emission performance over a wide load range with single-digit CO emission levels and capable of down to 9 ppm NO_x emissions. With this gas turbine you will comply with both global and regional regulations.

H2-Readiness - TÜV SÜD certificate

TÜV SÜD has developed a guideline for defining the “H2-Readiness” of power plants and is offering an independent certification to original equipment manufacturers and engineering, procurement, and construction (EPC) companies. The certification increases investment security for utilities. Siemens Energy is the first company worldwide to receive this certification for its “H2-Ready” power plant concept for the SGT-800. The guideline for obtaining certification was developed in collaboration with subject matter experts from Siemens Energy.

Visit the hydrogen power plant webpage

	62 MW rating	57 MW rating	56 MW rating	50 MW rating	45 MW rating
Gross power output	62.5 MW(e)	57.0 MW(e)	55.6 MW(e)	49.9 MW(e)	45.3 MW(e)
Fuel¹	Natural gas, liquid fuel, dual fuel	Natural gas, liquid fuel, dual fuel	Natural gas, liquid fuel, dual fuel	Natural gas, liquid fuel, dual fuel	Natural gas, liquid fuel, dual fuel
Frequency	50/60 Hz	50/60 Hz	50/60 Hz	50/60 Hz	50/60 Hz
Gross efficiency	41.1%	40.1%	39.5%	39.4%	38.4%
Gross heat rate	8,759 kJ/kWh (8,302 Btu/kWh)	8,970 kJ/kWh (8,502 Btu/kWh)	9,123 kJ/kWh (8,647 Btu/kWh)	9,147 kJ/kWh (8,670 Btu/kWh)	9,381 kJ/kWh (8,892 Btu/kWh)
Turbine speed	6,600 rpm	6,600 rpm	6,600 rpm	6,600 rpm	6,600 rpm
Pressure ratio	21.1 : 1	22.0 : 1	22.0 : 1	19.8 : 1	18.3 : 1
Exhaust mass flow	135.5 kg/s (298.7 lb/s)	136.6 kg/s (301.1 lb/s)	137.7 kg/s (303.6 lb/s)	124.7 kg/s (274.9 lb/s)	115.1 kg/s (253.7 lb/s)
Exhaust temperature	596 °C (1,104 °F)	565 °C (1,049 °F)	564 °C (1,047 °F)	560 °C (1,041 °F)	574 °C (1,065 °F)
NOₓ emissions²	15 – 25 ppmvd	15 – 25 ppmvd	15 – 25 ppmvd	15 – 25 ppmvd	15 – 25 ppmvd

	62 MW rating	57 MW rating	56 MW rating	50 MW rating	45 MW rating
Gross plant output	89 MW(e)	81.5 MW(e)	80.0 MW(e)	71.9 MW(e)	66.5 MW(e)
Gross plant efficiency	59.6%	58.5%	57.9%	57.7%	57.2%
Gross plant heat rate	6,040 kJ/kWh (5,725 Btu/kWh)	6,154 kJ/kWh (5,833 Btu/kWh)	6,218 kJ/kWh (5,893 Btu/kWh)	6,239 kJ/kWh (5,914 Btu/kWh)	6,294 kJ/kWh (5,965 Btu/kWh)
Number of gas turbines	1	1	1	1	1

	62 MW rating	57 MW rating	56 MW rating	50 MW rating	45 MW rating
Gross plant output	182 MW(e)	164.8 MW(e)	162.1 MW(e)	145.3 MW(e)	134.5 MW(e)
Gross plant efficiency	60.6%	59.1%	58.6%	58.3%	57.8%
Gross plant heat rate	5,941 kJ/kWh (5,631 Btu/kWh)	6,091 kJ/kWh (5,774 Btu/kWh)	6,143 kJ/kWh (5,823 Btu/kWh)	6,175 kJ/kWh (5,853 Btu/kWh)	6,228 kJ/kWh (5,903 Btu/kWh)
Number of gas turbines	2	2	2	2	2

	62 MW rating	57 MW rating	56 MW rating	50 MW rating	45 MW rating
Gross plant output	273 MW(e)	247.5 MW(e)	243.1 MW(e)	217.9 MW(e)	201.7 MW(e)
Gross plant efficiency	60.6%	59.1%	58.6%	58.3%	57.8%
Gross plant heat rate	5,941 kJ/kWh (5,631 Btu/kWh)	6,091 kJ/kWh (5,774 Btu/kWh)	6,143 kJ/kWh (5,823 Btu/kWh)	6,175 kJ/kWh (5,853 Btu/kWh)	6,228 kJ/kWh (5,903 Btu/kWh)
Number of gas turbines	3	3	3	3	3

	Standard package 45 / 50 / 57 MW rating	Standard package 62 MW rating	Single lift package** 56 MW rating
Approx. weight	300,000 kg (661,400 lb)	300,000 kg (661,400 lb)	305,000 kg (672,400 lb)
Length	22.4 m (74 ft)	25.4 m (83 ft)	22.0 m (72 ft)
Width	7.2 m (24 ft)	7.2 m (24 ft)	4.7 m (16 ft)
Height	6.6 m (22 ft)	6.6 m (22 ft)	5.3 m (17 ft)

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SGT-800 gas turbine: substantial steam-raising capability

Decarbonization pathways for gas turbines

Key benefits of the SGT-800 gas turbine technology

Lowest lifecycle cost, best return on investment

World-class emission performance

Proven reliability

Flexible solutions

Maximized availability

Excellent performance

Green biofuels: A proven fuel for gas turbines

SGT-800 technical features and power plant integration

H2-Readiness - TÜV SÜD certificate

SGT-800 technical specifications and performance benchmarks

Download more information about Siemens Energy

Gas turbine portfolio brochure (interactive PDF)

SGT-800 package poster

SGT-800 gas turbine poster (imperial units)

SGT-800 gas turbine poster (metric units)

SCC-800 power plant poster

Hydrogen power plants service and solutions brochure

More than 620 SGT-800 units sold worldwide: reference highlights

HKW Leipzig Süd, Germany (2023)

Estrella der Mar III, Dominican Republic (2021)

Holland, Michigan, USA (2017)

Chonburi / Rayong, Thailand (2012-2018)

Diamantina, Australia (2014)

Hassi R’Mel, Algeria (2011)

Gothenburg, Sweden (2006)

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What is SGT-800?