TenneT awards engineering contracts for 2GW Dutch land stations

TenneT has signed a framework agreement with Dura Vermeer, BAM Infra Nederland and Visser & Smit Bouw for engineering works for the construction of the 2GW land stations in the Netherlands.

The land stations will link offshore wind farms with the high-voltage grid and will be built according to TenneT's new 2GW standard.

At the land station, the direct current will be converted to alternating current and the voltage transformed from 525kV to 380kV, making it suitable for the Dutch grid.

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Dura Vermeer, BAM Infra Nederland and Visser & Smit Bouw will be responsible for the building and installation of the eight land-based stations, after which the framework agreement can be extended for new 2GW projects.

Work on the land stations will start in 2024 with the first delivery of the civil engineering work expected in 2026.

According to TenneT, the basic design of the land stations is already in place, with the parties making tweaks to the more detailed design and selecting the right solutions to support the design.

"By working jointly on the designs, we can make choices at a much earlier stage. This contributes to the standardisation of the concept and ensures that we will face fewer surprises later in the process," said Marco Kuijpers, director of large projects offshore at TenneT.

TenneT stated that its new 2GW standard's larger capacity reduces the number of grid connections required and is designed to facilitate system harmonisation and standardisation.

Furthermore, the partners are working to minimise the environmental footprint, using wood and recycled concrete, as well as low-emission vehicles and equipment during construction.