Vattenfall’s HKZ 1&2 Wind Farms to Feature SGRE’s 11 MW Turbines

Vattenfall’s HKZ 1&2 Wind Farms to Feature SGRE’s 11 MW Turbines

SGRE has announced that it will install its new 11 MW offshore wind turbines for Vattenfall’s entire HKZ wind zone

SGRE 11 MW Turbines

Siemens Gamesa Renewable Energy (SGRE) and Vattenfall have announced that they have extended the Hollandse Kust Zuid (HKZ) turbine supply agreement to now cover the entire wind farm zone, making this the largest turbine collaboration to date for Vattenfall. Under the agreement, Siemens Gamesa will install its new and most powerful 11 MW offshore wind turbines for Vattenfall.

The announcement was made at the ongoing WindEurope Offshore 2019 Conference & Exhibition in Copenhagen. The two firms announced that they have agreed to extend the HKZ turbine supply, subject to certain conditions including Vattenfall’s final investment decision (FID), to now also include HKZ 1&2 in addition to HKZ 3&4.

The HKZ wind farm zone is planned to be fitted with approximately 140 units of SGRE’s upgraded version of its Direct Drive offshore wind turbine, which now features the ability to reach a capacity of 11 MW.

This capacity upgrade, available under certain site conditions, means that fewer turbines are needed to generate the same amount of energy. This will reduce installation, operations and maintenance costs and thereby contribute to further reductions in Levelised Cost of Energy for offshore wind. Furthermore, it significantly reduces the environmental impact of the installation and operation of the wind farm, the joint release revealed.

Andreas Nauen, CEO of the Siemens Gamesa Offshore Business Unit said that the firms’ robust cooperation with Vattenfall becomes even more powerful with this conditional order. The newest version of our largest offshore Direct Drive machine is now setting the benchmark for turbines in subsidy-free offshore wind power projects.

“We’re thankful for the trust Vattenfall has placed in us to deliver the high levels of safety, reliability, and performance which they value so highly. Delivering clean energy for generations to come at a low Levelized Cost of Energy is a joint target which we’re committed to achieving together.”

In July 2019, Vattenfall won the tender to build HKZ 3&4. In March 2018, a permit had already been awarded to Vattenfall to build HKZ1&2. Both tenders were won by Vattenfall with a zero-subsidy bid. Once fully operational, HKZ will generate enough power to supply up to three million households with green electricity. The development of the wind farm is subject to certain conditions, including Vattenfall’s final investment decision.

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Ayush Verma

Ayush is a staff writer at and writes on renewable energy with a special focus on solar and wind. Prior to this, as an engineering graduate trying to find his niche in the energy journalism segment, he worked as a correspondent for