Technology Collaboration Programme

Advancing the research, development and commercialisation of energy technologies

The IEA Technology Collaboration Programme supports the work of 38 independent, international groups of experts that enable governments and industries from around the world to lead programmes and projects on a wide range of energy technologies and related issues.

More about collaboration on

Spherical Tori (ST)

Created in 2007, the ST TCP aims to enhance the effectiveness and productivity of fusion energy science and technology by strengthening co-operation among spherical torus research programmes and facilities; contributing to and extending the scientific and technology database of toroidal confinement concepts to the spherical torus physics regime; and providing a scientific and technological basis for the successful development of fusion power using the spherical torus.

Main areas of work

Key activities and accomplishments (2017-18)

  • Ten new projects funded for collaborative research on upgrade of the Mega Amp Spherical Tokamak Upgrade (MAST-U)
  • Construction of the MAST-U completed
  • Proto-Sphera produced its first confined toroidal plasma
  • NSTX-U recovery project completed major technical milestones
  • LTX-beta device made plasmas with plasma currents of about 40kA
  • Understanding of non-inductive ST plasma start-up 

Priorities and projects (2019-20)

  • Continue and extend bilateral and multilateral collaborations including exchange of equipment and personnel
  • Continue and extend collaborative research on the physics and technology of future fusion devices
  • Address physics and technology challenges related to steady state operation
  • Continue organisation of international worshops and meetings

Multilateral collaborations

  • There is a growing spherical tori community worldwide and a number of productive collaborations, many involving exchange of equipment and personnel
  • China has been invited to join the ST TCP


Why should your organisation become a member of ST?

The ST TCP contributes to the development of conventional tokamak devices (e.g. ITER) and alternate approaches such as the innovative ST concept, by strengthening co-operation among ST research programmes and facilities. The ST TCP helps to avoid unnecessary duplication of effort and helps to ensure complementarity between the research programmes through co-ordinated exchange of personnel and equipment among its members.