The LM2500+ DLE in a 1x1 combined cycle configuration—one gas turbine, one heat recovery steam generator (HRSG), and one steam turbine—delivers significantly higher efficiency, exceeding 50% in combined cycle mode.

Designed for high thermal efficiency, fast start capability, and reduced emissions, the LM2500 family is widely used across onshore and offshore environments, including industrial plants, pipeline stations, CHP systems, and utility-scale power production.

The DLE combustion system enables the LM2500+ to maintain low NOx and CO emissions without the need for water or steam injection—simplifying operations and reducing water-related maintenance.

Key features include:

• Triple annular combustor design for even temperature distribution and lower emissions across the power range
• Electrically actuated DLE fuel valves replacing traditional electro-hydraulic SAC valves for better control
• 75 pre-mixers in 30 external modules, creating a consistent lean fuel/air mixture
• NOx emissions ≤15–25 ppm and CO emissions ≤25 ppm (on natural gas, full load)

With fast ramp-up—achieving base load from cold start in under five minutes—the LM2500 is an ideal choice for fast-start and cycling applications. This performance makes it well suited to dynamic grid environments and industrial use cases requiring quick responsiveness.

The LM2500+ DLE gas turbine is designed to provide reliable, efficient while meeting strict environmental rules. Ideal for power plants where emissions limits and water availability are critical concerns, the LM2500+ DLE provides clean, flexible, and high-performance power generation.

Using advanced Dry Low Emissions (DLE) technology, it reduces nitrogen oxide (NOx) and carbon monoxide (CO) emissions without requiring water or steam injection. This makes it especially valuable for facilities aiming to minimize environmental impact and avoid the operational complexity and maintenance costs associated with water-based emissions control systems.

The turbine’s ability to maintain NOx emissions below 25 ppm on natural gas—and as low as 15 ppm under certain conditions—ensures compliance with tough air quality standards.

With a power output exceeding 31 megawatts and thermal efficiency above 40%, the LM2500+ DLE suits a broad range of applications, from utility-scale electricity generation to industrial cogeneration and offshore power. Its fast start capability and robust cycling performance enable it to respond quickly to fluctuating grid demands, making it an excellent partner for integrating renewable energy sources.

Fuel flexibility extends the LM2500+ DLE’s usability across different operational contexts. It runs smoothly on natural gas, diesel, aviation fuels, and even hydrogen blends—offering operators confidence and versatility regardless of fuel availability or market conditions.

Maintenance is simplified thanks to the turbine’s modular design, allowing rapid access and part replacement. This reduces downtime and keeps plants running efficiently, enhancing overall productivity.

Combining power, efficiency, emissions control, and fuel flexibility, the LM2500+ DLE supports effective and compliant power generation in a variety of operational settings.

The LM2500XPRESS gas turbine is a compact and modular power system designed for fast installation and quick delivery of power when speed matters. It comes prepackaged in 10 simplified modules, which makes installation easier and faster, with only 27 electrical interconnects to manage.

This turbine is based on the proven LM2500 aeroderivative gas turbine, known for its reliability and versatility. It can be used in a wide range of power generation setups, including baseload, peaking, simple cycle, combined cycle, and cogeneration (combined heat and power) applications. The system offers dry low emissions (DLE) and can operate on gas or dual fuel.

One important feature of the LM2500XPRESS is its ability to handle daily starts and stops without increasing maintenance frequency or costs. Its free-spinning power turbine design allows it to act as a synchronous condenser without needing a clutch between the turbine and generator, which helps reduce maintenance needs and downtime.

The turbine can ramp from a cold start to full base load in about five minutes, making it ideal for situations where fast power availability is critical. Its plug-and-play design allows industrial users or grid operators to connect and begin generating electricity quickly and efficiently.

In summary, the LM2500XPRESS combines a reliable aeroderivative gas turbine with a smart, modular package designed for rapid deployment and flexible power generation.

The LM2500+G4 SAC 50Hz Combined Cycle 2x1 is a high-performance gas turbine system designed for large-scale, high-efficiency power generation, particularly suited to the needs of oil and gas operations. This configuration links two LM2500+G4 gas turbines with a single steam turbine in a combined cycle layout—capturing waste heat from the gas turbines to produce steam and generate additional power. This approach significantly improves overall thermal efficiency while maintaining operational flexibility.

The Single Annular Combustor (SAC) with optional water injection helps the system meet emissions rules while keeping combustion stable and efficient. The LM2500+G4 improves on the previous +G4 model by increasing airflow, using better materials, and adding improved cooling. This allows it to produce about 10% more power without reducing the lifespan of critical hot parts. It can be equipped with either a two-stage or six-stage power turbine to fit different needs. Even with the higher power output, the +G4 keeps its modular, two-spool design, which makes maintenance easier and ensures reliable performance in many environments.

In the 2x1 configuration, the system delivers approximately 41% more power than a single gas turbine unit. The use of combined cycle technology ensures better fuel utilization, helping to reduce overall emissions and lower lifecycle operating costs.

The LM2500+G4 SAC 50Hz Combined Cycle 2x1 offers higher power, improved efficiency, and a flexible design, making it well-suited for large-scale oil and gas operations that demand reliable and efficient power generation. Its “50Hz” designation means the turbine is specifically optimized to supply electricity to grids operating at 50 cycles per second, ensuring seamless integration with regional power systems.

The 6″ Butterfly Bleed Air Valve is designed to regulate the flow of compressed bleed air from the compressor section of large gas turbines, such as the LM2500. This valve uses a butterfly-shaped disc permanently attached to a robust shaft, allowing precise control over airflow to reduce pressure and temperature within the turbine system.

With an effective flow area of 19.1 square inches max, this valve accommodates higher volumes of bleed air, making it suitable for turbines with greater airflow requirements. It features a fast response time—less than 320 milliseconds for a full stroke—ensuring timely adjustments to changing operating conditions. The valve’s bearings are engineered for high cycle service, providing durability and reliability even under frequent opening and closing cycles.

The 6″ valve helps protect turbine components by managing thermal loads and maintaining optimal compressor performance, which in turn improves overall turbine efficiency and extends equipment life. It is commonly used in oil and gas applications where maintaining safe, efficient, and reliable turbine operation is critical. This valve also serves as a drop-in replacement in existing turbine systems, requiring no hydraulic or electrical modifications, simplifying installation and reducing downtime.

The LM2500+G4 SAC 50Hz Simple Cycle is a fourth-generation aeroderivative gas turbine of the LM2500. Designed for industrial power applications, including those in the oil and gas sector, it delivers more output and greater thermal efficiency while retaining the ease of maintenance and high reliability the LM2500 series is known for.

In a simple cycle configuration, the gas turbine generates power directly by expanding hot gases through the turbine stages, without recovering heat for additional power generation. This design is favored for its simplicity, lower capital cost, faster start-up, and suitability for mobile or remote applications.

The LM2500+G4 improves upon its predecessor by increasing airflow and turbine cooling capacity, allowing for higher operating temperatures. These changes result in up to 40% thermal efficiency in simple cycle mode—an impressive figure for this class of turbine. This translates to improved fuel usage and reduced operational costs over time.

The engine features a Single Annular Combustor (SAC), which supports stable combustion with low emissions of nitrogen oxides (NOx) and carbon monoxide (CO). The combustor is also designed for durability and long life, with easily replaceable fuel nozzles and a thermal barrier coating for resistance to high temperatures and corrosion.

Its two-spool design means the engine has no cold start limitations, making it well-suited for harsh or variable environments. The power turbine and gas generator can be separated, allowing for easier in-module repairs and less downtime.

Overall, the LM2500+G4 SAC 50Hz Simple Cycle offers a balance of power, efficiency, and maintainability, making it an attractive solution for power generation and mechanical drive needs in industrial, onshore, and offshore oil and gas operations.

The Single Annular Combustor (SAC) version of the LM2500+G4 is designed for oil and gas applications that prioritize consistent performance, fuel flexibility, and emissions control—such as LNG facilities, gas processing plants, and pipeline compression, both onshore and offshore.

What makes the SAC version different is its simpler combustor design compared to dual annular or premix types. The SAC uses a through-flow, venturi swirler to ensure an even temperature profile at the turbine inlet, helping extend hot section life. It features individually replaceable fuel nozzles, a durable machined-ring liner, and a thermal barrier coating for better resistance to high temperatures and corrosion. This design supports both dry operation (with higher emissions) and water or steam injection to reduce NOx when needed—making it adaptable to site-specific emission regulations.

The LM2500+G4 SAC builds on the proven LM2500+ design, with approximately 10% more power. This gain comes from increased airflow, improved internal cooling, and material upgrades—while keeping the same number of compressor and turbine stages. The 17-stage high-pressure axial compressor and the basic engine layout remain unchanged, making it easy to maintain and service.

The engine can run on a wide range of liquid and gas fuels, allowing flexibility in remote or supply-constrained locations. It achieves up to 40% thermal efficiency in simple cycle mode. Water-injected operation enables NOx emissions as low as 25 ppm (gas) and 42 ppm (liquid).

In short, the LM2500+G4 SAC is well-suited for high-power mechanical drive and power generation in harsh or remote oil and gas environments, offering a balance of power output, fuel versatility, and emissions control.