Sweden’s Vattenfall is set to invest over €200m ($233m) in a Dutch windfarm modernization project, the company has announced.

The project, which represents Vattenfall’s largest investment in its Dutch wind assets to date, will include repowering and expansion of the 295 MW Wieringermeer windfarm, located 60 km north of Amsterdam.

Older turbines will be replaced with new technology by 2019 and six new turbines will be added, bringing the central windfarm’s capacity to 180 MW, Vattenfall said. The firm has also acquired the adjacent 115 MW Wieringermeer extension.

By 2020, the ‘mega’ windfarm is expected to generate around 1 TWh.

The company’s Dutch subsidiary Nuon will carry out the work and will operate the revamped plant.

In September, Vattenfall acquired an additional 32 of the windfarm’s 100 turbines, adding to the 50 it already owned. The turbines were purchased from the joint venture that built the farm, which included the Energy Research Centre of the Netherlands (ECN), Nuon and Windcollectief Wieringermeer.  

ECN will still own 17 of the turbines after the modernization and one turbine will be made available to supply power to local residents, Vattenfall said.

Magnus Hall, Vattenfall’s CEO, called the project “another step in our ambition to expand our wind power portfolio, underlining our strategic ambition to become fossil-free within one generation”.

And Gunnar Groebler, head of Vattenfall’s wind business, said the project “underlines our competence in repowering and can now be transformed into our most modern onshore windfarm in the Netherlands”.