GE introduces new 4.8MW onshore wind turbine


GE Renewable Energy has introduced a new 4.8MW turbine, which has been designed for use in low to medium wind speed on-shore wind sites.

The new technology is the company's largest wind turbine to date, featuring a 158m rotor and a range of tip heights up to 240m.

It was developed in collaboration with LM Wind Power, Blade Dynamics and GE’s Global Research Centre, and is designed to improve annual energy production (AEP) and reduce the cost of energy for customers.

GE Onshore Wind Business president and CEO Pete McCabe said: “The 4.8MW, 158m design is an important next step in turbine technology and efficiency, and we're excited to introduce this turbine at this moment in time.

“It is well suited for low to medium wind speed regions worldwide, examples include Germany, Turkey and Australia, as well as for mechanisms like auctions, as countries around the world are putting an increased emphasis on lowering the cost of energy.”

The 4.8MW turbine incorporates a larger rotor and tall towers than previous variants in order to allow the use of higher wind speeds and facilitate a greater energy production capacity.

"The 4.8MW, 158m design is an important next step in turbine technology and efficiency, and we're excited to introduce this turbine at this moment in time."

The turbine includes 77m-long carbon blades, which feature the industry’s smallest bolt circle diameters to reduce the manufacturing and logistical costs. It also features improved loads and controls.

Additionally, the 4.8MW turbine includes GE's doubly fed induction generator (DFIG) and drivetrain architecture.

The turbines are capable of achieving 104dB of noise during normal operations.

GE also noted that it has designed the new turbine on the basis of data collected from more than 30,000 wind turbines that have been installed by the company worldwide.


Image: GE’s new 4.8MW onshore wind turbine. Photo: courtesy of General Electric.