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Press Release16 March 2021Siemens Energy and Amprion
Mülheim
Siemens Energy and Amprion seal technology partnership for reliable and innovative grid management
“The increased feed-in of renewable, volatile energy, for example from wind and sun, will lead to
noticeable changes in the power grids in the future. We must take precautions by implementing
stabilization mechanisms. I am pleased, that with this promising pilot project the two companies
are making a significant contribution to the energy transition in Germany and are thus
strengthening this location for innovative energy technology,” said Minister Pinkwart.
Due to the increase of renewable energy sources with fluctuating feed-in, the operational
requirements of the transmission networks in Germany and Europe are changing. So-called reactive
power is essential for maintaining voltage in the power grid
“Until now, the reactive power was mainly provided by generators in large power plants. In the
course of the energy transition many of them are going offline. Therefore, Amprion is now
investing more and more in innovative alternative solutions for grid stabilization, such as ARESS,”
emphasized Dr. Neumann.
ARESS, the first rotating asynchronous phase shifter for a mains frequency of 50 Hz, is a holistic
solution for grid stabilization. An essential technological component of the asynchronous phase
shifter system ARESS is an innovative frequency converter and a new, double-fed asynchronous
machine with an optional flywheel.
"Siemens Energy has extensive expertise in various technology areas, which is crucial for the
development of this pioneering combination of converter technology and rotating machines," said
Dr. Eickholt. "With today's signature, we and Amprion are sealing our joint project to further
advance the energy transition in Germany".
From the left to the right: Mülheim site manager Nevzat Oezcan, Dr. Beatrix Natter, Executive Vice President and member of the Managing Board Jochen Eickholt (all from Siemens Energy), Dr. Hendrik Neumann, Technical Director of Amprion and North Rhine-Westphalia’s Minister of Economic Affairs, Innovation, Digitalization and Energy, Prof. Dr. Andreas Pinkwart.
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Siemens Energy is one of the world’s leading energy technology companies. The company works with its customers and partners on energy systems for the future, thus supporting the transition to a more sustainable world. With its portfolio of products, solutions and services, Siemens Energy covers almost the entire energy value chain – from power generation and transmission to storage. The portfolio includes conventional and renewable energy technology, such as gas and steam turbines, hybrid power plants operated with hydrogen, and power generators and transformers. More than 50 percent of the portfolio has already been decarbonized. A majority stake in the listed company Siemens Gamesa Renewable Energy (SGRE) makes Siemens Energy a global market leader for renewable energies. An estimated one-sixth of the electricity generated worldwide is based on technologies from Siemens Energy. Siemens Energy employs more than 90,000 people worldwide in more than 90 countries and generated revenue of around €27.5 billion in fiscal year 2020. www.siemens-energy.com.
AMPRION CONNECTS
Amprion GmbH is one of four transmission system operators in Germany. Our extra-high-voltage network is 11.000
kilometres long and transports electricity across an area that extends from Lower Saxony to the Alps. Around a third of
Germany’s economic output is generated there. Our power lines are lifelines of society: They secure jobs and quality of life
for 29 million people. We keep the network stable and safe – and prepare the way for a climate-compatible energy system
by expanding our network. Around 2.000 employees in Dortmund and at more than 30 other sites help make sure the
lights never go out. We also perform overarching operations for integrated grid systems in Germany and Europe.