New research tackles key challenge for commercial fusion energy - How is it possible to protect superconducting magnets at -250°C from a fusion plasma at over 100 million degrees - It turns out that scientists at UNSW Sydney have the answer and Tokamak Energy, a UK company developing commercial fusion energy, is excited about the technology News provided by Share this article Share this article OXFORD, England, April 14, 2021 /PRNewswire/ -- Tokamak Energy is one of the world-leaders in the race for commercial fusion energy. The company is combining novel and robust high temperature superconducting magnets with the highly efficient and well-proven design known as a 'Spherical Tokamak'.