TenneT’s 2GW Offshore Grid Platforms Take Shape in Singapore and Batam

10 November 2026
Edited By: Haley McQueen

Construction of TenneT's next generation of offshore grid infrastructure is progressing in Singapore and on the Indonesian island of Batam. Together with Seatrium and GE Vernova, TenneT is working on four 2 GW offshore platforms that will connect future wind farms in the North Sea to the onshore electricity grid.

TenneT, Seatrium, and GE Vernova are advancing construction of four 2 GW offshore HVDC platforms in Singapore and Batam, Indonesia. (Image credit: TenneT)

The platforms for IJmuiden Ver Beta, IJmuiden Ver Gamma, and Nederwiek 2 are under construction, while preparations for BalWin 5 are under way. Each platform will form the heart of a grid connection capable of bringing 2 GW of offshore wind power from the North Sea to shore.

The move from the company’s existing 700 MW connections to 2 GW marks a significant step in the development of offshore grid infrastructure. But the program is not simply about building larger platforms. We are standardizing the design and applying lessons learned from one project directly to the next.

Building and Learning Together

Delivering infrastructure of this scale requires close cooperation across companies, countries, and disciplines. Seatrium is responsible for the construction and integration of the platforms, while GE Vernova provides the high-voltage direct current (HVDC) technology needed to transport large volumes of electricity efficiently over long distances. The TenneT project teams work closely with both partners to ensure the platform, technology, and engineering come together as one integrated system.

This long-term cooperation also makes it possible to learn across projects. Experience gained on IJmuiden Ver Beta is applied to Gamma, Nederwiek 2, and BalWin 5, allowing teams to improve as the program progresses.

Astrid Hoetmer, Executive Director Offshore at TenneT, said: “Our project teams take ownership, solve problems and use what they learn from one project to make the next one even better. The close cooperation between TenneT, Seatrium and GE Vernova, across countries, cultures and organizations, is essential. That cooperation, combined with the teams’ expertise and commitment, is what turns our ambitions into reality.”

From Construction to Integration

Work is progressing across both locations. Components are being fabricated, assembled, and integrated in Batam. In Singapore, work is moving further towards the installation and testing of the HVDC technology. Each step brings the platforms closer to their eventual destination in the North Sea.