The company is planning to install 76 turbines at the Hollandse Kust Zuid 1&2 wind farm, which is located off the Dutch coast.
Vattenfall wind business area vice-president and head Gunnar Groebler said: “This is a very important development for us.
“We are proud to have teamed up with Siemens Gamesa , the company has been a strong and reliable partner in other projects and we are happy to extend our collaboration to Hollandse Kust Zuid.”
Vattenfall also intends to install the 10MW wind turbines at the Hollandse Kust Zuid 3&4 windfarms, if it secures the contract to build it.
Overall the windfarm will feature 152 wind turbines upon completion. The project will be the world’s first zero subsidy offshore wind farm.
The wind turbines will have the capacity to generate enough energy to power up to 1.5 million households annually.
Groebler further added: “Due to the increased capacity, we require fewer turbines to be placed at Hollandse Kust Zuid which clearly reduces the environmental impact of this wind farm compared to earlier ones.
“Larger turbines and greater availability also lead to major advantages in terms of electricity generation, which is particularly important in a subsidy-free environment. Having fewer turbines to install also means lower costs and fewer risks during the installation process.”