With the commissioning of BorWin3, Siemens has handed over the fifth North Sea grid connection to its customer TenneT. After completion of successful test runs, the German/Dutch grid operator accepted the project. Siemens was responsible for the grid connection system including an onshore converter station. The grid connections HelWin1 and HelWin2, BorWin2, SylWin1, and BorWin3 – for which Siemens supplied all the technology for direct current transmission – are thus now in commercial operation and are transmitting power. Siemens was awarded the contract for BorWin3 in the spring of 2014. Being the fifth North Sea grid connection, it provides power to over a million German households. Siemens won the orders for the grid connections DolWin6 and BorWin5 in July 2017 and August 2020, respectively. They are scheduled to go into operation in 2023 and 2025. A total of about seven million households will be supplied with electricity generated from wind power via these seven links.
Clean electricity for up to one million Scottish households
is leading the market for the grid connection of offshore wind power
In a world’s first, Siemens Energy is connecting
three Offshore Transformer Modules® (OTM®), its range of AC offshore substation
platforms, and will transmit the power generated from the 950MW Moray East
Offshore Windfarm project, located 22km off the Aberdeenshire coast in Scotland.
The three largest thermoelectric
power plants in Bolivia are now upgraded to efficient combined cycle mode and have
been officially inaugurated. Together the expanded power plants Termoeléctrica
del Sur, de Warnes, and Entre Ríos are adding more than one gigawatt of
electrical power to the Bolivian national grid.
The expansion of the three power
plants is an important milestone in the Bolivia 2025 vision, which aims to expand
the country’s energy sector. By the year 2025 the country’s power generation
capacity will be increased to 6,000 megawatts (MW), of which 3,000 MW will be
designated for export.
In many areas of the world, existing power infrastructure is stretched to the limit by growing demand for electricity. Reliable power supply systems are a major enabler of economic development, yet needs are growing at a pace faster than the ability to erect conventional power plants. The task at hand in these regions is to deploy efficient mobile power generating capacity quickly to fuel economic development. In some cases the need is temporary, and after some time the mobile power plant might be relocated to a different location to perform a similar duty.
Siemens has now specially developed its SGT-A45 TR gas turbine for this rapidly growing market – a new aero-derivative gas turbine integrated into a mobile unit that delivers an electrical output of up to 44 megawatts, can be installed and commissioned in less than two weeks and begin generating electricity immediately. This light-weight gas turbine offers outstanding power density, high fuel efficiency and good operational flexibility, making it an ideal choice for customers who urgently need power and regions with less developed infrastructures.
The wind service operation vessel (SOV) for the Dutch Gemini project has been christened "Windea la cour" today in Hamburg. The vessel is to set sail to start operations at the Gemini offshore wind power plant this summer. This is the third Siemens-chartered SOV which is supporting Siemens and its offshore service operations. Since June 2015, 'Esvagt Faraday' is supporting service operations at the Butendiek offshore wind power plant in North Sea and 'Esvagt Froude' is utilized for service at the EnBW Baltic II wind farm in the Baltic Sea. A fourth SOV will be utilized for service operations by Siemens at the Sandbank and Dan Tysk wind projects. SOVs are part of innovative approaches in the sector of service for offshore wind power of Siemens anc can make a vital contribution in the future to further reducing the costs for electricity generated by offshore wind farms.
In May 2014 Siemens, together with the public utilities of Mainz, Linde and the RheinMain University of Applied Sciences, has laid the foundation stone for a new type of energy storage system. Now, time has come: By pressing a symbolic button, the Chairman of the Board of Linde Group, Dr. Wolfgang Büchele, Siemens board member Professor Siegfried Russwurm, two board members of Stadtwerke Mainz AG, Detlev Höhne and Dr. Tobias Brosze, and Professor Dr. Detlev Reymann, President of RheinMain University, officially launched a hydrogen production plant at the Energiepark Mainz on July 2, 2015. With the support of the German Federal Ministry of Economics and Technology as part of the Energy Storage Funding Initiative the 17-million-project could be realized. The system, equipped with an electrolyzer from Siemens, will convert surplus electricity from wind farms to hydrogen from now on. In this way, it will be possible to store electricity from renewable sources over longer periods of time. With a peak rating of up to 6 megawatts the plant is the largest of its kind in the world.
The principle of electrolysis has been tried and tested for decades. What is special about the Mainz system is that it involves highly dynamic PEM high-pressure electrolysis which is particularly suitable for high current density and can react within milliseconds to sharp increases in power generation from wind and solar sources. In this electrolyzer a proton exchange membrane (PEM) separates the two electrodes at which oxygen and hydrogen are formed. On the front and back of the membrane are precious-metal electrodes that are connected to the positive and negative poles of the voltage source. This is where the water is split. The system in Mainz will thus have a capacity relevant for bottlenecks in the grid and small wind farms.