Berlin 2012 – scientific programme

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DF: Fachverband Dielektrische Festkörper

DF 17: Focus Session: Alternative energies – Compensation of long- and short-term fluctuations (jointly with DY)

DF 17.6: Topical Talk

Thursday, March 29, 2012, 17:10–17:40, EB 107

High Tc Superconducting Energy Storage Systems — •Frank Werfel — Adelwitz Technologiezentrum GmbH (ATZ), Arzberg-Adelwitz, Germany

Electric energy is basic to heat and light our homes, to power our businesses and to transport people and goods. Powerful storage techniques like SMES, Flywheel, Super Capacitor, and Redox - Flow batteries are needed to increase the overall efficiency, stability and quality of electrical grids. High-Tc superconductors (HTS) possess superior physical and technical properties and can contribute in reducing the dissipation and losses in electric machines as motors and generators, in electric grids and transportation. The renewable energy sources as solar, wind energy and biomass will require energy storage systems even more as a key technology. We survey the physics and the technology status of superconducting flywheel energy storage (FESS) and magnetic energy storage systems (SMES) for their potential of large-scale commercialization. We report about a 10 kWh / 250 kW flywheel with magnetic stabilization of the rotor. The progress of HTS conductor science and technological engineering are basic for larger SMES developments. The performance of superconducting storage systems is reviewed and compared. We conclude that a broad range of intensive research and development in energy storage is urgently needed to produce technological options that can allow both climate stabilization and economic development.