Siemens Energy has reached a cooperation with TenneT, a German and Dutch grid operator, and will provide three grid stabilization systems for the German grid, two of which are synchronous camera systems and one is the world’s first reactive power compensation system equipped with supercapacitors ( Static reactive power compensation + frequency stabilizer, referred to as “SVC PLUS FS”), this is the first application of the new technology of this system.
The synchronous camera system is mainly composed of a generator and a flywheel. The generator spins the flywheel and stores kinetic energy, which then feeds active power into the grid when needed to ensure power system stability. Siemens Energy will build the synchronous camera systems in Grossenburg, Hesse, Germany, and Vergassen, North Rhine-Westphalia. Currently, TenneT is modernizing the substation in Vergassen, while the modernization of the substation in Grossenburg will take place in the next few years. The two transformed substations will become important grid hubs to meet the needs of energy transition.
The third system, SVC PLUS FS, enables short-term energy storage via supercapacitors. Supercapacitors can be quickly charged and discharged in a short period of time. They can not only extract up to 200 megawatts of power from the grid, but also feed the stored power into the grid, so that the entire system has the ability to respond quickly, so as to play a role in the “frequency stability of the system”. device” function. Compared with conventional battery storage solutions, SVC PLUS FS can respond more quickly to grid fluctuations, and the system takes up only one-third of the space of battery storage solutions. Siemens Energy plans to build the system at the Mehrum power plant in Lower Saxony, Germany. At present, the German state of Lower Saxony produces the largest onshore wind energy in Germany, so grid expansion in this state is an important prerequisite for a reliable power supply.
Tim Holt, Member of the Executive Committee of Siemens Energy AG, said: “The resilience of the European grid is a major advantage, which can effectively ensure the safe supply of electricity and promote regional prosperity. To ensure that the European grid will continue to use this advantage in the future, Investing in the stable operation of the grid is crucial. We must do this as soon as possible, because the energy transition is not just about replacing fossil fuels with renewables, but delivering electricity reliably to final consumers is the ultimate goal. That’s what this project is all about.”
In addition to generating electricity, traditional power plants can automatically stabilize the grid through physical behavior, thereby improving the stability of the grid system. With the advancement of energy transition, more and more traditional power generation is replaced by distributed renewable energy generation. Therefore, transmission system operators must find alternatives to ensure grid stability while delivering more power. The three systems provided by Siemens Energy are scheduled to be commissioned and commissioned in 2025.
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