Jenbacher Type 6 Gas Engines
High-efficiency, ‘Ready for H₂’* industrial engines delivering 2 – 4.5 MW of resilient, scalable power for complex energy projects.
Power, Performance & Reliability
INNIO Group’s Jenbacher Type 6 represents the pinnacle of high-output gas engine technology. Continuously refined and proven in thousands of installations worldwide, the Type 6 delivers excellent performance in the 2 to 4.5 MW power range. With a 1,500 rpm engine speed providing high power density and low installation costs, the Type 6 achieves high electrical and total efficiencies through its advanced pre-combustion chamber design. Enhanced components and a robust construction support reliability and long service intervals—up to 60,000 operating hours before major overhaul.
High Efficiency
The Jenbacher Type 6 engine series achieves electrical efficiencies of up to 47.1% and total efficiencies more than 90% in CHP applications, increasing fuel utilisation while reducing operating costs.
Lower Emissions
With advanced LEANOX® lean burn combustion control and a centrally located pre-combustion chamber, the Type 6 can deliver lower NOₓ emissions and stable operation even under challenging load conditions.
Proven Reliability
Type 6 engines have been delivered since 1989, reflecting decades of continuous improvement. Its robust design and enhanced components support dependable operation and extended service life.
Technical Highlights
Combining advanced thermodynamic and control features, the Jenbacher Type 6 provides reliable, high-efficiency performance:
- Centrally located purged pre-combustion chamber allows for enhanced ignition conditions and stable combustion.
- Spark plug ignition energy amplified in the pre-combustion chamber for improved ignition timing and efficiency.
- Miller valve timing supports reduced compression temperature and increased safety margin against knocking.
- Flexible heat recovery options, including two-stage oil plate heat exchangers, enhance thermal performance.
- Electronically controlled gas dosing valve enables precise air-fuel ratio management for responsive control.
- Low-pressure air/fuel mixture charging before turbocharging improves mixture uniformity and fuel flexibility.
- Two-stage turbocharging technology (J624) delivers superior efficiency and flexibility under variable ambient conditions, enhancing output across the full operating range.
- ‘Ready for H₂’* design allows for future conversion to operate on up to 100% hydrogen.
Model Specifications
| Model | Electrical Output (kWe) | Cylinders / Arrangement | Combustion | Speed (rpm) | Gen-set Dimensions (L x W x H mm) |
|---|---|---|---|---|---|
| J612 GS | 1,818 – 2,007 | 12 / V 60° | Lean burn | 1,500 (50Hz) | 7,600 x 2,200 x 3,000 |
| J616 GS | 2,430 – 2,677 | 16 / V 60° | Lean burn | 1,500 (50Hz) | 8,300 x 2,200 x 3,000 |
| J620 GS | 3,041 – 3,360 | 20 / V 60° | Lean burn | 1,500 (50Hz) | 9,500 x 2,200 x 3,000 |
| J624 GS | 4,507 | 24 / V 60° | Lean burn, 2-stage turbocharged | 1,500 (50Hz) | 12,800 x 2,500 x 3,100 |
Discover More
Renwable Gases and ‘Ready for H₂’*
Scope of Supply
Applications
Renwable Gases and ‘Ready for H₂’*
Jenbacher Type 6 engines are designed to operate on a wide variety of renewable and lower-carbon gases, including biogas, landfill gas, and sewage gas. All units are ‘Ready for H₂’*, allowing future conversion to operate on up to 100% hydrogen—supporting customers on the path toward net-zero energy solutions.
Scope of Supply
The Jenbacher Type 6 engine is available as a generator set, combined heat and power (CHP) module, or within a containerised package. Typical CHP module configurations include the engine and alternator, control panel, gas train, and exhaust gas heat exchangers. Systems can be installed indoors or in dedicated enclosures and integrated with site heat recovery infrastructure to enhance total efficiency.
Applications
The Type 6 range is suited for large-scale industrial, municipal, and utility applications requiring reliable baseload or cogeneration performance. Common uses include manufacturing facilities, data centres, greenhouses, district heating schemes, and waste-to-energy plants. Its scalability and efficiency make it a choice for decentralised power generation projects.
Find the latest information and product fact sheets on INNIO’s Jenbacher Type-6 engine here.
Explore the Full Jenbacher Range
Jenbacher Type 2
249 – 360 kW
Jenbacher Type 3
393 – 1155 kW
Jenbacher Type 4
749 – 1562 kW
Jenbacher Type 6
1818 – 4507 kW
Jenbacher Type 9
10606 kW
Clarke Energy Lifecycle Service Support
Commissioning
Engines expertly commissioned by localised Clarke Energy service engineers.
Maintenance Agreements
Long term agreements to enhance operational reliability and customer peace-of-mind confidence.
Technical Training
Empower your workforce with theoretical and practical training in multiple languages.
Remote Monitoring & Diagnostics
Increase asset uptime and reduce operational costs with advanced engine remote monitoring.
Field Service
Rapid response and local expertise through comprehensive network of engineers.
Spare Parts
Genuine manufacturer approved spare parts for optimal engine performance levels.
Repairs & Overhauls
Scheduled and unscheduled maintenance for highest levels of engine availability.
Conversions, Modifications & Upgrades
Extend engine life, boost output, improve efficiency and reduce emissions through upgrades.
Case Studies
Clarke Energy and INNIO Collaborate on Landmark Project with Statera Energy to Support UK Grid Stability
Thurrock Power, a 450MW flexible generation plant, will support grid stability and power up to 1 million UK homes once fully operational.
Triton Power and Clarke Energy Sign Contract for 49MWe Hydrogen-Ready Gas Peaking Plant at Deeside Power Station
The facility, scheduled to begin construction in June 2025, represents a key milestone in supporting the UK’s energy transition and grid resilience.
Powering Energy Independence in Morocco with Tendrara Gas Project
Italfluid Geoenergy and Clarke Energy are collaborating to advance Morocco’s energy independence, supplying efficient power solutions for the Tendrara gas field.
Frequently Asked Questions about Jenbacher Type 6 Engines
Technical and Engineering
What efficiency levels can be achieved with the Jenbacher Type 6 series?
The Type 6 can achieve electrical efficiencies of up to 47.1% and total CHP efficiencies more than 90%, ensuring dependable high-output performance.
How does the J624’s two-stage turbocharging improve operation?
Dual turbocharging boosts output and efficiency while maintaining stable performance in a wide range of ambient conditions.
Financial and Commercial
What makes the Jenbacher Type 6 a cost-effective choice for large installations?
High efficiency, robust engineering, and long service intervals reduce fuel and maintenance costs, supporting a strong return on investment.
How can the Type 6 engine reduce installation costs?
Modular design and pre-engineered interfaces simplify installation and can lower balance-of-plant expenses.
Environmental and Sustainability
Can the Jenbacher Type 6 operate on renewable gases?
The engine is configured for renewable fuels such as biogas and landfill gas, reducing emissions and enhancing sustainability.
How does the Jenbacher Type 6 support hydrogen-transition goals?
All new Jenbacher Jenbacher Type 6 engines are “Ready for H2”*, supporting zero-carbon energy initiatives.
* In general, “Ready for H2” Jenbacher units can be converted to operate on up to 100% hydrogen in the future. Details on the cost and timeline for a future conversion may vary and need to be clarified individually.
Operational and Implementation
What ongoing support is provided for Jenbacher Type 6 engines?
Clarke Energy delivers full lifecycle management—covering installation, servicing, overhauls, and spare-parts support.
How does predictive maintenance improve uptime for Type 6 installations?
Real-time engine data and predictive analytics through myplant™ allow proactive servicing, reducing downtime and maintaining high efficiency.
Interested in installing a Jenbacher Gas Engine?
Speak with our experts to discuss your project requirements, explore system configurations, or arrange a site assessment.
