Energy Sector / Renewable Energy Division
Siemens launches new gearless wind turbine for low to moderate wind speeds
The SWT-2.3-113 is the second gearless wind turbine launched by Siemens. Like the SWT-3.0-101, the 3-MW direct drive wind turbine launched by Siemens in April 2010, the new SWT-2.3-113 features only half of the parts required for a conventional geared wind turbine and a significantly smaller number of moving parts. “The first prototypes of our SWT-3.0-101 have been running for more than a year and fulfilling all expectations in terms of reliability and performance,” said Henrik Stiesdal, CTO of the Siemens Wind Power Business Unit. “The design of the new SWT-2.3-113 is based on the same platform as the revolutionizing SWT-3.0-101 wind turbine we launched last year. The new SWT-2.3-113 benefits from experiences accumulated to date,” added Stiesdal. “With its proven lightweight design it’s a secure and profitable investment. Because gearless technology is low-maintenance, it maximizes our customers’ returns.”
Together with the SWT-2.3-113 Siemens is introducing the Quantum Blade, a new generation of rotor blades. The new blade is lighter than previous models but retains the superior strength of earlier generations. The new B55 Quantum Blade used for the new wind turbine is 55 meters long and features a redesigned tip and root section. The root section uses Siemens “flatback” profiles to minimize root leakage and provide greater lift. The blade tip has also been redesigned to minimize loads and reduce noise levels. With a noise level of only 105 decibels (dB) the SWT-2.3-113 is one of the quietest wind turbines on the market.
To date, Siemens has installed and commissioned a total of five gearless SWT-3.0-101 wind turbines in Denmark and Norway. Further projects with Siemens direct drive wind turbines are planned in the U.S., Denmark and Germany. In addition to these two new wind turbines with ratings of 3 MW and 2.3 MW, further turbines are already at the planning stage. “This year we’ll launch our 6-MW direct drive wind turbine, which will be particularly suitable for large offshore wind power plants,” Stiesdal stated.
Wind power is part of Siemens’ Environmental Portfolio. In fiscal 2010, revenue from the Portfolio totaled about EUR28 billion, making Siemens the world’s largest supplier of ecofriendly technologies. In the same period, our products and solutions enabled customers to reduce their carbon dioxide (CO2) emissions by 270 million tons, an amount equal to the total annual CO2 emissions of the megacities Hong Kong, London, New York, Tokyo, Delhi and Singapore.
Download SWT-2.3-113 wind turbine Spec Sheet Here cut in Wind Speed is 3mph just what was needed for our Wind Speeds in the St Louis Area!