Energy Storage

Mechanical Energy Storage | Project StenSea - unloading of the marine pumped storage at the Lake Constance.

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Mechanical Energy Storage

In addition to pumped-storage power plants, compressed air energy storages have become well-established as industrial plants for stationary electromechanical storage of energy. Experts of the Fraunhofer Energy Alliance develop applications for the usage of this technology at a smaller scale (5-50MWel).

Competences »Mechanical Energy Storage« | Fraunhofer Energy Alliance

Compressed Air Energy Storage (CAES)

Electricity can be (thermo-)mechanically stored in so-called CAES (Compressed Air Energy Storage) or compressed air (energy) storage systems. In addition to pumped-storage power plants, existing CAES plants with fossil co-firing become well-established as industrial plants for stationary energy storage. Experts of the Fraunhofer Energy Alliance are developing applications for using the technology without fossil fuel firing and on a smaller scale (<50MWel), currently for example a modular low-temperature compressed-air energy storage system (LTA-CAES®) with reversible machine sets.

Projects

 

KompEx LTA-CAES®

With “KompEx LTA-CAES® modular”, Fraunhofer UMSICHT and BOGE KOMPRESSOREN are developing a system technology that enables compressed air energy storage to be used regardless of location.

Marine Pumped-Storage

The use of marine pumped storage facilities enables the offshore storage of large amounts of electrical energy. The sea itself is used as the upper reservoir, while the lower reservoir is formed by a hollow body on the sea floor. In a comprehensive project, Fraunhofer researchers are working on the development and testing of a novel marine pumped storage concept. There is great potential for the application of the technology in coastal locations, especially in front of large, densely populated regions.

Projects

 

StEnSEA

The project comprises the development and testing of a novel pumped storage concept for storing large amounts of electrical energy offshore. This marine pumped storage concept utilizes the sea itself as upper storage reservoir.