Annual report 2019

34

BOSKALIS SHOWS VERSATILITY ON BORSSELE PROJECT

Boskalis is currently completing the installation of the last of the four 220 kV export cables that connect the Borssele offshore wind farms in the North Sea to the high-voltage grid in the Netherlands. “The project is a showcase of versatility and teamwork between various disciplines of our company,” project director Hans Veth said.

The Borssele wind farms are being developed in the North Sea, 55 kilometers off the Dutch coast. They are designed to generate more than 1,400MW of energy. Four export cables connect the offshore high-voltage platforms Alpha and Beta to the Dutch electricity grid in Borssele via the Western Scheldt estuary. The four cables have a combined length of 250 kilometers. Boskalis also installed the interlink cable between the platforms. The work was executed for client TenneT in a consortium with cable manufacturer NKT Cables. The project consisted of offshore and nearshore sections, each with their own specifc challenges. Nearshore, dredging work had to be carried out at extremely varied depths. The navigation