Proven performance

Our turbine legacy

From higher efficiency and lower costs to faster, cleaner, higher quality power generation, aeroderivative gas turbines have many advantages over reciprocating engines.

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The aero advantage over reciprocating

50 years and counting

GE has been in the aeroderivatives business for 50 years, with more than 150 million operating hours and more than 3,000 units in operation.

Aeroderivative turbines can be installed quickly—in as little as a few weeks—to help alleviate frequent outages, making them especially well-suited for utility and industrial applications.

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Aeroderivatives vs. reciprocating: power savings

Higher efficiency leads to lower costs

Lower lube oil costs

A highly efficient aeroderivative gas turbine in combined cycle like the LM2500 consumes only about 2 mL/MWh of lube oil per year—200 times less than a reciprocating engine. That can translate to a savings of more than $1 million per year for a 100 MW aeroderivative power plant.

Less maintenance

Aeroderivative gas turbines need maintenance only once a year, or when they have been in operation for 4,000 hours. Compared to high-speed reciprocating engines—which require 50 times more maintenance events per year—aeroderivative engines save more than 13,000 man-hours over a 3-year maintenance cycle.

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Gas turbines yield higher quality power

Plant availability and fuel flexibility

High availability

Aeroderivative gas turbines have the highest availability of any thermal power technology. An aeroderivative gas turbine can be replaced in a power plant, such as a utility or power plant, within a few days for a major inspection, which translates to higher availability—98.2% as compared to power generated by reciprocating engines, which average 93% availability.

Diverse fuel options

With the ability to operate on a wide spectrum of fuels—including natural gas, LPG (propane and butane), isopentane, ethanol, diesel, and Coke Oven gas—aeroderivative gas turbines can allow power customers to switch between fuels to save money, all without stopping, and without a reduction in power. Using diverse fuel sources doesn’t just increase reliability, it also results in significant fuel savings—from $12 million up to $43 million per year—as compared to the fuel costs of a high-speed reciprocating engine.*

*Fuel savings range based on a natural gas price of $1 – 4/MMBTU and a diesel gas price of $6 – 12/MMBTU.

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Gas turbines create faster power

Getting power to the grid, wherever it’s needed

Fast installation

Because they are small and modular, aeroderivative engines can be transported, installed and commissioned in as little as 3 months, as compared to 12 – 18 months for reciprocating engines. They can be installed outdoors with minimal foundation requirements, making them an advantageous energy solution for any region across Africa that needs fast, clean, reliable power.

Fast response rate

GE’s aeroderivative gas turbines feature a power turbine and high-pressure shaft that work together to respond quickly to grid frequency fluctuations, helping create a more stable and reliable grid than that of reciprocating engines.

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Aeroderivatives yield cleaner power

Smaller and more stable

Lower emissions

Equipped with best-in-class combustion systems, aeroderivative gas turbines can offer 15 or 25 ppm NOx without needing SCRs (selective catalytic reduction) or the use of ammonia.

Enabling renewables

Aeroderivative gas turbines allow renewables to operate when needed, saving fuel and maintenance—and maintaining a stable grid to allow the integration of more renewables in the future.

Smaller footprint

Because they have about 22 times more power output per unit than comparable high-speed diesel reciprocating engines, GE’s aeroderivative gas power plants take up less space—a real advantage where real estate is expensive. *

*Comparison based on a 3x1 cc LM2500 and a 115 MW reciprocating plant

Featured video

Aeroderivative turbines vs. reciprocating engines: see for yourself

Curious to learn more about how aeros compare to reciprocating engines? Check out our video to see them go head-to-head.