As a result of the energy agreement, the Dutch government has designated TenneT for the connection of new offshore wind farms. TenneT has set up a programme to deliver a single platform and connection to the Dutch electricity grid, one each year between 2019 and 2023.

About the project

TenneT will build five offshore high-voltage stations and connections (Borssele Alpha and beta, Dutch coast South Alpha and Beta and Dutch coast North) which connect each two 700MW offshore wind farms to the land with two 220 kV (AC) cables. On land the cables are connected to the national high-voltage grid. In this programme, TenneT has a high standard of standardisation and repetition of the five projects.

Contract management

Aratis supports TenneT’s Offshore NL team in the field of contract management for the realisation of the Grid at Sea programme since 2015. The team of Aratis at TenneT has grown along with the programme.

Project Borssele Tender

Aratis carried out the contract management for support in the implementation of FIDIC as a contract form and the drafting of the programme of requirements for EU procurement for the platforms and sea cable for the Borssele offshore wind plots. Aratis also implemented the interface management for the preparation of this programme of requirements. The FIDIC knowledge and systematics are being carried over at different levels during trainings to TenneT’s Offshore NL team. Aratis performs contract management at various levels for the execution of the Borssele Sea cable and platform tenders.

Project Borssele Implementation

Aratis also strengthens the execution team of Borssele. Not only has the senior contract manager continued his role in the execution phase after the award, also two other professionals from Aratis have been added to this team.

Project Dutch Coast (south) tender

After the tenders for Borssele, Aratis has supported the ‘ lessons learned ‘ to implement it in the tender documentation for the Dutch coast (south) (HKZ). Aratis has set up the process for adjusting the Borssele ITT to the HKZ ITT and supported it with two contract managers.

The experts involved in this project:

Michel Stoelinga

With the establishment of Aratis Groep in 2007, Michel followed his ambition to manage contract risks for clients in various markets. As a senior...

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Hans Sleper

Hans has realised various projects as a site manager during the construction of onshore wind farms. His knowledge is...

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Bastiaan Burger

Bastiaan is a result driven civil engineer with a typical hands-on approach. He has extensive experience in the development, engineering and...

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Matthijs Knollenburg

Matthijs is a maritime construction specialist, used to work under pressure on offshore and onshore projects. He has a preference for the...

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Olav Hoekzema

Olav is an allround EPC Procurement & Contract manager with extensive knowledge of procurement and contract management...

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Steve Ellis

Strongly operating on strategies and structures in various technical disciplines, Steve is a result driven and decisive strategist...

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Magchiel van Os

As a Procurement and Sustainability advisor, Magchiel is an all-round advisor. With extensive experience in greening the construction economy and...

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Tijs van Haasteren

With his background in both mechanical engineering and in the procurement of energy projects, Tijs developed broad knowledge and...

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