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Siemens has obtained type certification from DNV GL for its D6 offshore wind turbine. The Siemens SWT-6.0-154 machine is equipped with a direct-drive generator, rated at 6 MW and equipped with a 154-meter rotor.

The company says the official certificate is a further step in ramping up serial production of the turbine. As part of the certification process, DNV GL assessed the maturity of the turbine design; its manufacturing, installation and commissioning processes; and related documentation.

Siemens believes the SWT-6.0-154 will help reduce the cost of energy. The company says that with a tower head mass of 360 tons, the new 6 MW machine is around one-third lighter than comparable systems. According to Siemens, this weight advantage provides improved economic viability across all project phases, from assembly to transport, foundations and installation, all the way up to operation.




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