# 50Hertz Completes On-Schedule Installation of OSS Darß and OSS Zingst for Gennaker

> 50Hertz installed OSS Darß and OSS Zingst for the OST-6-1 grid connection, carrying up to 927 megawatts from 63 Gennaker turbines.

- Published: 2026-10-16T16:45:22+00:00
- Section: Expansion
- Author: News Desk
- URL: https://newsforagent.com/news/2026-10-16/50hertz-gennaker-offshore-platforms-installed
- Source: [EuropaWire](https://news.europawire.eu/press-releases-tagged-with/50hertz-completes-key-offshore-platform-installation-for-gennaker-wind-farm-connection/)

## Key takeaways

- 50Hertz completed the on-schedule installation of OSS Darß and OSS Zingst under the OST-6-1 grid connection project.
- The platforms will transmit up to 927 megawatts from 63 Gennaker turbines to the Gnewitz substation.
- Commissioning of the Gennaker connection system is planned for 2028.

50Hertz has completed the on-schedule installation of OSS Darß and OSS Zingst, the two offshore substations for the Gennaker wind farm's grid connection in the Baltic Sea, with commissioning of the Gennaker connection system planned for 2028. EuropaWire [reported](https://news.europawire.eu/press-releases-tagged-with/50hertz-completes-key-offshore-platform-installation-for-gennaker-wind-farm-connection/) the installation as part of the OST-6-1 grid connection project.

## How the Gennaker Platforms Fit the OST-6-1 Project

[50Hertz](https://akta.pro/company-profiles/0003bsg/50hertz) is a regulated German transmission system operator headquartered in Berlin and owned by Belgium's Elia Group, operating the 380 kV extra-high-voltage grid across eastern Germany. The company connects offshore wind in the Baltic and North Seas to onshore demand through HVDC and extra-high-voltage projects.

The two platforms, OSS Darß and OSS Zingst, will transmit up to 927 megawatts from 63 turbines to the Gnewitz substation. The installation was completed on schedule, and commissioning of the Gennaker connection system is planned for 2028.

## 50Hertz's Gennaker and Grid Investment Figures

According to akta.pro [company records](https://akta.pro/company-data), 50Hertz signed a platform cooperation agreement with Skyborn Renewables in January 2026 for the Gennaker offshore wind farm, establishing the legal framework for two converter platforms totaling up to 927 megawatts. The same records describe Gennaker as the first project connected under Germany's territorial waters regulation.

50Hertz quintupled its five-year investment plan to EUR 23 billion by 2028 to improve and expand its offshore grid, covering both onshore and offshore grid expansion across its control area.

## Earlier 50Hertz Baltic and Grid Moves

On October 2, 2026, 50Hertz Transmission GmbH said it would start preliminary construction works in October 2026 for the Ostwind 4 grid connection at the Vierow landfall and Stilow substation, EuropaWire reported. On September 24, 2026, ABL was appointed by 50Hertz to provide marine warranty survey services for the 2 GW Ostwind 4 offshore grid connection in the German Baltic Sea, Offshore News reported.

On October 7, 2026, 50Hertz began construction to expand the Wustermark substation, adding 380 kV infrastructure and upgraded systems, EuropaWire reported. That project will enable a secure 300 MW grid connection for the VIRTUS data center and is scheduled for completion by 2028.

## What Comes Next for the Gennaker Connection

Commissioning of the Gennaker connection system is planned for 2028, the same year the Wustermark substation expansion is scheduled for completion.

## Companies in this story

- [50Hertz company profile](https://akta.pro/company-profiles/0003bsg/50hertz) · website: http://www.50hertz.com

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