Posts Tagged ‘50Hertz’
”Offshore Power Plant” Baltic Sea significantly increases power generation
The offshore wind farms in the Baltic Sea fed around 5,400 gigawatt-hours (GWh) of electricity into the eastern German extra-high-voltage grid via the 50Hertz grid connection systems last year – about ten percent more than in the previous year. Over the course of 2025, the six currently operating offshore wind farms generated enough electricity to cover the annual consumption of the city of Leipzig and its surrounding region.
The reason for this increase is the continuous expansion of wind energy off the coast of the island of Rügen. Since last year, the Baltic Eagle wind farm (approx. 450 MW) has been feeding its full capacity into the grid via the Ostwind 2 connection system. Prior to that, the Arcadis Ost 1 wind farm (approx. 250 MW) went online. Wind yield amounted to 4,300 GWh in 2023 and 4,900 GWh in 2024.
Read full announcement (external link)
Originally published on 9 Feb
Read More50Hertz und Skyborn Renewables pave the way for the commissioning of the largest offshore wind project in the German Baltic Sea
By signing a contract governing the legally compliant cooperation for the construction and operation of the two offshore platforms required for the Gennaker offshore wind farm, transmission system operator 50Hertz and wind farm developer Skyborn Renewables (Skyborn) have cleared the way for commissioning the entire system by mid‑2028. The agreement resolves legal and regulatory uncertainties and sets a pioneering precedent for grid connection of an offshore wind farm located in territorial waters.
The Gennaker offshore wind farm, comprising 63 turbines of the 15‑MW class, will be built in German territorial waters (within the so‑called 12-nautical-mile zone) off the coast of the Fischland-Darß-Zingst peninsula. The project received full approval from the state of Mecklenburg-Western Pomerania in December last year. Installation of the wind turbines is scheduled to begin in late summer 2027. The cooperation agreement between 50Hertz and Skyborn now concluded represents an essential addition and prerequisite for the planned commissioning of the grid connection system in July 2028.
Read full announcement (external link)
Originally published on 27 Jan
Read MoreAgreement on the Bornholm Energy Island project: “Strong european signal in geopolitically difficult times.”
The agreement on the wind farms for the Bornholm Energy Island project is the decisive building block for the realisation of this particular German-Danish infrastructure undertaking.
Stefan Kapferer, CEO of 50Hertz: “The agreement be-tween Germany and Denmark has an impact on the offshore industry across Europe, extending far beyond the Baltic Sea project Bornholm Energy Island. It is furthermore a strong european signal in geopolitically difficult times. Both countries are breaking new regulatory ground and are therefore pio-neering the way forward. 50Hertz and Energinet will jointly contribute their expertise and experience and, as those responsible for the electricity hub on Bornholm and for the direct current connections to Denmark and Germany, will play their part in the success of the project overall.”
Read full announcement (external link)
Originally published on 26 Jan
Read MoreEight Baltic Sea electricity TSOs publish offshore system study to promote coordinated sea basin planning
The electricity Transmission System Operators (TSOs) of eight countries bordering the Baltic Sea today published the first comprehensive regional system study for offshore network infrastructure and offshore wind, marking a significant step toward coordinated sea basin planning in Europe.
The TSOs of Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland and Sweden – organised in the Baltic Offshore Grid Initiative (BOGI) – developed a study that moves from electricity transmission corridors to potential projects for the 2040-time horizon. The results show that the Baltic Sea region can become a clean energy hub, with around 13 GW of new cross-border interconnectors and up to 50 GW of additional offshore wind identified by 2040. These connections include point-to-point links between countries and strategic offshore nodes such as Bornholm, which could serve as future hybrid hubs. The market modelling indicates that these interconnectors would operate with high utilisation throughout the year and significantly reduce system costs, price peaks and CO₂ emissions.
Read full announcement (external link)
Originally published on 22 Jan
Read MoreOstwind 3 grid connection project on the home stretch: Offshore platform precisely installed in the sea off Rügen
The expansion of the grid connection systems for connecting offshore wind farms in the Baltic Sea is progressing well. 40 kilometres northeast of the island of Rügen, an important stage in the 50Hertz Ostwind 3 project has now been successfully completed – the installation of the Jasmund offshore platform. It is to collect 300 megawatts from the Windanker wind farm from October, transform it to the voltage level of 220 kilovolts and transmit the electricity via a submarine land cable connection to the new Stilow substation in the Vorpommern-Greifswald district, which is still under construction.
Stefan Kapferer, Chairman of the Management Board of 50Hertz: “After Ostwind 1 and 2, Ostwind 3 is the next project in the sea area northeast of Rügen, which we will complete on time and within budget. We are also on track with the next OST-6-1 project with a transmission capacity of 927 MW, which serves to connect the Gennaker wind farm north of the Fischland-Darß-Zingst peninsula. Two offshore platforms are already under construction, the laying of protective pipes has begun, and a new substation near Gnewitz is taking shape. Overall, 50Hertz is making a significant contribution to reliably tapping the great wind energy potential of the Baltic Sea – in German waters, but also beyond in cooperation with Energinet from Denmark and, in the future, with other partners in the Baltic region.”
Read full announcement (external link)
Originally published on 12 Jan
Read MoreApproval procedures for the Bornholm Energy Island project launched
An important milestone has been reached for the hybrid interconnector Bornholm Energy Island (BEI): first public consultations have started in both countries.
The transmission system operators 50Hertz and Energinet have jointly submitted an application to start the environmental impact assessment (EIA) to the Danish Environmental Agency SGAV for the “BEI Interconnector Bornholm-Germany.” To this end, in November 2025, the public on Bornholm and relevant stakeholders were invited to the first public consultation. In Germany, the first public consultation took place in April 2025.
Bornholm Energy Island is a European PCI project (project of common interest), and the approval procedures are therefore being carried out according to the European TEN-E regulation.
Read full announcement (external link)
Originally published on 28 Nov
Read MoreLarge-scale order for Siemens Energy to realise Danish-German Bornholm Energy Island project
The joint Danish-German Bornholm Energy Island project is moving from the planning and development stage to the implementation stage. The two transmission system operators Energinet (Denmark) and 50Hertz (Germany) placed a joint order with Siemens Energy for the construction and turnkey delivery of four converter systems in total as well as other technical components on the Danish island Bornholm and the Danish island Zealand as well as on the German mainland. This marks the end of a six-month transition phase during which the joint project had to be paused due to the need for political regulation between the two countries involved.
The contract that is now concluded between Energinet, 50Hertz and Siemens Energy covers the design, the completion, transport, installation, testing as well as commissioning of the systems by the mid-2030s.
Read full announcement (external link)
Originally published on 4 Sep
Read More