Qnetic build world's largest test facility for 200 kWh flywheel energy storage | heise online
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US company Qnetic has begun constructing what it claims is the largest test facility for flywheel energy storage at the Qnetic Technology Center in Shanghai. The facility will first house and validate a Qnetic Pulsar flywheel energy storage system at its original scale. The flywheel energy storage system is designed to have a storage capacity of 200 kWh and is already in assembly.
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Qnetic's technology center is located in Shanghai. With the construction of the test facility for flywheel energy storage, it will also become the main site for validating the performance, safety, and reliability of Qnetic's flywheel energy storage systems. Systems of the next generation will be tested there before the technology is gradually introduced to the market. Excavation and foundation work are currently underway at the site.
Kinetic Energy Storage
Flywheel energy storage systems are brought to extremely high rotation, for example, with renewable energy during periods when it is excessively available. The rotors run in a vacuum housing to minimize resistance that slows down rotation. The energy is stored kinetically. Chemistry, as found in battery storage systems, is not required. Qnetic estimates that it is therefore possible to operate such systems for decades without significant wear and tear or loss of performance. However, it is still unclear whether the technology will actually work reliably and be durable.
Furthermore, the technology is said to be responsive, allowing stored energy to be accessed immediately at any time. As soon as electricity is needed, the rotating mass drives a generator, which feeds the generated electricity into the grid.
A first Qnetic Pulsar flywheel energy storage system is already being assembled. It is designed to store up to 200 kWh of electricity and, in addition to a long service life, offer unlimited cycle stability, ensuring the system operates sustainably and predictably economically.
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The Pulsar flywheel energy storage system can store significantly more energy than previous Qnetic systems, according to spin tests. Consequently, building a test facility that meets the necessary safety requirements is a particular challenge. Qnetic is not yet disclosing when the facility will be completed.
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This article was originally published in
German.
It was translated with technical assistance and editorially reviewed before publication.
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