Siemens is committed to further up its current efforts to achieve real-world decarbonization along its whole value chain. By doing this, the corporation is pursuing the science-based reduction strategy that the Science Based Targets initiative (SBTi) promotes. Siemens was one of the first multinational industrial corporations to declare its ambition to achieve carbon neutrality in its running operations by 2030 back in September 2015. They’ve kept working on a lot of initiatives, which has aided in the expansion of the business. DolWin4 and BorWin4 are the most recent.
With the help of two new power lines, DolWin4 and BorWin4, Siemens Energy will be able to efficiently transfer up to 1.8 gigawatts (GW) of green wind energy from various wind farms facilities in the German North Sea to the land. This order for grid connection is in the high 3-digit million-euro range. They can provide for the needs of a large city like Hamburg, which has 1.8 million residents. The technology required for the converter stations of Amprion Offshore GmbH’s initial grid connection projects will be provided by Siemens Energy. The deal’s value is the highest offshore grid connection order that Siemens Energy has ever received.
“By 2030, the proportion of renewable energies in the power supply of Germany is expected to climb to 80 percent,” stated Tim Holt, who is a member of Siemens Energy’s Managing Board. Building more wind farms is crucial, but ultimately useless if users cannot get the energy. We also require substantial investment in our power grid in order to provide reliable sustainable electricity to the country.”
The range of Siemens Energy’s supply comprises two linked stations on land and 2 converter platforms at sea. The platforms change the alternating power generated by wind turbines into DC (direct current). A high-voltage DC (direct current) transmission cable (HVDC cable) is then used to transfer the direct current for transportation. The electricity is then changed back into alternating current at a second converter station on land. Large amounts of energy can only be transported in this manner without suffering substantial losses over distances of roughly 215 km (DolWin4) and 280 km (BorWin4) (low-loss). The two connections are going to be set up simultaneously and are expected to commence working in the year 2028. Thus, BorWin4 would even be linked to the grid a year early than anticipated.
The connection sites for the linkages are positioned further inland because the transmission infrastructure in Lower Saxony’s coastline region is already being actively utilized by multiple wind farms. The land converter stations will be built by Siemens Energy close to Amprion’s Hanekenfähr substation in Lingen, southern Emsland. The Emsland nuclear power plant’s connection to the transmission system is currently made by the grid hub, which is slated to be shut down at the close of 2022. With 1.8 GW of offshore wind energy, BorWin4 and DolWin4 is going to substitute the generation capacity that was thereby destroyed. Siemens Energy will not only provide the technology but will also assume total responsibility for the converter solutions’ maintenance for a 10-year initial period. Siemens Energy in Europe will produce all of the high-voltage components for the two connecting systems, including transformers, switchgear, and converter technology.