A joint venture consisting of Engie Solutions and Iemants and TenneT have signed a contract for the construction and installation of offshore transformer substation Hollandse Kust (west Alpha).
Earlier this year the consortium already won the contract for the construction and installation of the offshore transformer substation Hollandse Kust (north).
Both contracts are the result of a European call for tenders issued by TenneT earlier this year. The transformer substation for Hollandse Kust (west Alpha) is scheduled to be commissioned in 2024.
The contract includes the engineering, procurement, construction, offshore installation, connection and testing of the offshore transformer substation. The topside and the jacket will be built separately on land and installed at sea on site using a crane ship.
TenneT’s transformer substations form an essential part of the offshore grid. Standardization of these 700 MW platforms substantially reduces costs for development, construction and maintenance. According to the design, the jacket is 49 meters high and consists of 1,930 tons of steel. This steel structure will be firmly anchored in the seabed with piles at a depth of 28 meters.
On top of this, the topside will have three (inner) floors and an outer deck. This topside weighs approximately 4,300 tons and is 47 meters long, 35 meters wide and 25 meters high (excluding antenna tower and upper deck crane).