Alstom

Under a turnkey contract, Alstom was responsible for the technical development, design and supply of the electrical components, platform construction, transport as well as the offshore installation of a high voltage offshore substation for the wind farm.

Alstom equipped the Baltic 2 platform with GIS substation, which will transfer the electrical energy generated by the wind turbines to the onshore connection point of the network in Bentwisch near Rostock through a 150KV-submarine cable.

The offshore wind platform is built on a pre-installed jacket and its buoyant and self-erecting design enabled a high degree of flexibility and independency from crane ships for the hassle-free transportation and installation of the offshore substation.

The closed platform layout also protects the electrical components from oceanic climate, Alstom said.

Alstom Grid Central & Eastern Europe and Russia region vice president Gerhard Seyrling said: "The integration of renewable energies plays a key role in the successful implementation of the energy transition.

"With the installation of the offshore substation for EnBW Baltic 2, Alstom has made an important contribution to this transition in Germany thanks to its technical expertise and leadership in connecting offshore wind farms to the grid. The project opens up another direct access point for wind energy in Germany."

EnBW Baltic 2, which is Germany’s second offshore wind farm in the Baltic Sea, features 80 units of Siemens SWT-3.6-120 wind turbines.

The clean electricity generated at the offshore wind facility will be enough to power close to 340,000 households while curbing 900,000 tons of CO2 emissions annually.

Besides Baltic 2 wind farm, Meerwind, Borkum West II, Global Tech 1 and Alpha Ventus wind farms in the North or Baltic Sea also have offshore-substations featuring Alstom’s AC-technology.


Image: Alstom AC offshore substation in the EnBW Baltic 2 wind farm. Photo: courtesy of ALSTOM.