Whether you’re seeking full power at high efficiency levels or a unit capable of start-up in less than 3 minutes, GE’s Jenbacher J920 FleXtra gas engine is a reliable solution for large gas engine power generation plants. This Jenbacher gas engine is designed to support a broad variety of multiple-engine power plant solutions–from remote power supply to combined heat and power (CHP) generation.

2-Stage Technology

The 2-stage turbocharger design of the J920 Flextra allows for no deration at higher altitudes and higher cooling water temperatures-perfect for hot ambient conditions.

Modular Design for Flexibility

Modular gas engine design allows for seamless installation with any multiple-engine configuration and offers flexible size options.

Superior performance

Operating a Jenbacher J920 FleXtra at 49.9% electrical efficiency level has the capacity to produce approximately 68 million kWh of electricity.
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JENBACHER J920 FLEXTRA OVERVIEW

The newest and largest Jenbacher gas engine has, at 49.9 percent, the highest electrical efficiency of any Jenbacher gas engine.

  • A smaller carbon footprint and an ecomagination* certification, helping it to be more energy-efficient. 
  • High power density at low investment costs.
  • Stable power output and reliable efficiency in any ambient condition.
  • Quick startup for grid stabilization and easy maintainability.

    DID YOU KNOW?

    With more than 90% overall efficiency compared to the separate production of heat and electricity, a J920 FleXtra as a CHP solution is designed to achieve over 130 millions kWh primary energy savings over the course of a year, equivalent to the energy contained in more than 76,000 barrels of oil.

J920 Features

GE’s J920 FleXtra Jenbacher engine is designed for durability, simple installation, and maintainability. The GenSet consists of three modules, including a generator, engine, and a turbocharger module, providing a high quality, pre-fabricated, standardized generator-set module. Each module is factory-tested, then shipped separately and assembled onsite, offering reduced installation time. In addition, the modules have highly standardized interfaces that work well with balance of plant (BOP) systems, and ultimately simplify BOP installations and total plant erection time. To maximize plant availability, the J920 FleXtra is optimized for operation and maintainability in the following ways:

Power Unit

The J920 FleXtra power unit concept ensures low maintenance downtime as the complete power unit consisting of cylinder head, water jacket, cylinder liner, piston and con-rod can be exchanged with one assembly.

Fast Load and Fast Transients

With the Jenbacher J920, 10.4 MW of electric power can be provided from demand in less than 5 minutes. Newest model-based control technology ensures lowest engine-out emissions during engine start. Together with integrated after-treatment systems and controls overall NOx emissions are minimized over the full load range and even during fast transient operations.

Divided Camshaft

The J920 FleXtra is equipped with a segmented camshaft to support fast maintenance of individual segments through a service window at the top of the crankcase instead of disassembly of the whole camshaft.

J920 SERVICES: FROM START TO FINISH

Planning

Based on our modular plant concept and your specific requirements, our highly experienced system engineers guide you through every critical planning phase (including the feasibility study, power plant engineering, and design) to tailor the best solution for your plant.

Plant Realization

GE's trained project and system engineers offer project management expertise to support you during the plant realization phases. Construction and commissioning procedures are standardized to minimize risks and assure a successful implementation. As part of our construction and plant installation services, GE provides worldwide engineering and procurement, and construction support through its qualified EPC-network. Our start-up and commissioning service also includes a series of tests performed by our experienced service technicians to ensure the optimum installation and functionality of the J920 gas engine in your plant.

Operation

Our contractual service agreements are designed to provide flexible and optimum care for your plant during operation. Through our global service network, you’ll have dedicated personnel that help ensure predictable operating costs of the Jenbacher J920 and risk mitigation. Remote diagnostics provide you with online access to your plant and J920 FleXtra equipment, thereby minimizing downtime, increasing plant availability, and lowering expenses for corrective maintenance. All work on your J920 FleXtra gas engine system — including upgrade, repair, and overhaul — is performed at your plant, saving you time and updating your engine with the latest technology.

 

Jenbacher Gas Engine Technical Specifications

A new standard with its 2-stage turbocharger, GE’s Jenbacher J920 FleXtra gas engine supplies game-changing gas engine technology. Read below for the Jenbacher gas engine specifications.

Performance Data

50Hz/1,000 rpm 60Hz/900 rpm
Electrical Output 10,400 kW 9,350  kW
Electrical Efficiency 49.1% 49.9%
Heat Rate *per ISO-3046 with +/-5% tolerance, LHV 7,332 kJ/kWh - 6,949 BTU/kWh 7,214 kJ/kWh - 6,837 BTU/kWh
Thermal Output  8,600+kWth 7,510+ kWth
Total Efficiency >90% >90%

Installed Dimensions

Length Width Height Weight

8.4 m

27.5 ft

3.2 m

10.5 ft

3.4 m

11.2 ft

91 t

201,000 lb

5.2 m

17.1 ft

2.5 m

8.2 ft

2.9 m

9.5 ft

59 t

130,000 lb

3.2 m

10.5 ft

3.9 m

12.8 ft

5.1 m

16.7 ft

26 t  

57,300 lb  

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