LIQHYSMES—size, loss and cost considerations for the SMES—a conceptual analysis

A new energy storage concept for variable renewable energy, LIQHYSMES, has been proposed which combines the use of liquid hydrogen (LH sub(2)) with superconducting magnetic energy storage (SMES). LH sub(2) with its high volumetric energy density and, compared with compressed hydrogen, increased oper...

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Bibliographic Details
Published in:Superconductor science & technology 2011-10, Vol.24 (10), p.105008-1-6
Main Authors: Sander, Michael, Neumann, Holger
Format: Article
Language:English
Subjects:
Applied sciences
Carrier density
Cost analysis
Devices
Energy
Energy density
Energy storage
Energy. Thermal use of fuels
Exact sciences and technology
Hydrogen storage
Magnesium
Superconductors
Transport and storage of energy
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Summary:A new energy storage concept for variable renewable energy, LIQHYSMES, has been proposed which combines the use of liquid hydrogen (LH sub(2)) with superconducting magnetic energy storage (SMES). LH sub(2) with its high volumetric energy density and, compared with compressed hydrogen, increased operational safety is the prime energy carrier for large scale stationary energy storage. But balancing load or supply fluctuations with hydrogen alone is unrealistic due to the response times of the flow control. To operate the hydrogen part more steadily, additional short-term electrical energy storage is needed. For this purpose a SMES based on coated conductors or magnesium diboride MgB sub(2) operated in the LH sub(2) bath, is proposed. Different solenoidal and toroidal SMES designs for the 10 GJ range are compared in terms of size and ramping losses. Cost targets for different power levels and supply periods are addressed, taking into account current developments in competing short-term storage devices like super-capacitors, batteries and flywheels.
ISSN:0953-2048
1361-6668
DOI:10.1088/0953-2048/24/10/105008