TECHNOLOGY

WE ARE AN HTS AND STELLARATOR COMPANY


Superconductors are special materials that, under special conditions (e.g., low enough temperature), conduct electricity without any resistance. High-Temperature Superconductors (HTS) exhibit this property at comparatively higher temperatures (but still much lower than room temperature). Compared to conventional superconductors, they are able to carry higher currents and thus generate stronger magnetic fields, opening up new opportunities in medical imaging, levitated trains, magnetic confinement fusion and several other technologies.

Stellarators (like Wendelstein 7-X in Germany, pictured) are devices for the magnetic confinement of fusion plasmas, vaguely shaped like a doughnut. Tokamaks (like the ITER experiment under construction in France) are also doughnut-shaped. Tokamaks are relatively simple to build, but difficult to operate (pulsed and subject to “disruptions”, “ELMs” and other instabilities). By contrast, stellarators are simple to operate (steady-state and quiescent) but difficult to build, due to their complex shape.

Tokamaks are the most mature plasma-confinement technology, and stellarators rank second, but are rapidly catching up. If their construction could be simplified, stellarators would be a strong candidate for a demonstrative (DEMO) fusion power-plant.

RENAISSANCE FUSION AIMS AT


  • Demonstrating a new HTS manufacturing technique with potential benefits for medical imaging and stellarator simplification.
  • Building the first high-field (10 T) HTS stellarator with thick, flowing liquid metal walls.
  • Putting fusion electricity in the grid within 13 years.

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