Structure and cost scaling for intermediate size superconducting magnetic energy storage (SMES) systems

Author

Lubell, M.S. ; Lue, J.W.

Author_Institution

Oak Ridge Nat. Lab., TN, USA

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

345

Lastpage

349

Abstract

The Superconducting Magnetic Energy Storage (SMES) Engineering Test Model (ETM) was sized to be extrapolated to a full-scale utility system and only warm structural support was practical. If this constraint is removed, then smaller systems structurally reinforced with cold mass are more cost effective than supported with warm mass. Higher field is also more advantageous and thus the bore of a 20 MWh magnet is an order of magnitude smaller than an ETM. Both aluminum and stainless steel supports were considered and the weight of 1-100 MWh systems were determined. The cost of the SMES magnet scales as 0.5 power of stored energy. The cross over in stored energy where magnets supported by warm structures becomes cheaper was also determined.<>

Keywords

costing; economics; superconducting magnet energy storage; 1 to 100 MWh; Al; Engineering Test Model; Superconducting Magnetic Energy Storage; aluminum; cold mass; cost scaling; intermediate size systems; stainless steel; structural reinforcement; structural support; structure; utility system; warm mass; weight; Aluminum; Boring; Coils; Costs; Current density; Samarium; Solenoids; Steel; Superconducting magnetic energy storage; System testing;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.402560

Filename

402560