These activities include:

• development (design, production monitoring, qualification, evolution in plasma environment) of plasma facing components for fusion (first wall, limiters, divertors, antenna and port protection) and operation of associated test facilities;
• operation, maintenance, data validation and developments of diagnostics associated with the wall protection;
• operation, maintenance, data validation and development of plasma heating systems;
• responsibility for complementary activities related to engineering, industry monitoring, quality and project management support.

The Head of SI2P also has complementary responsibilities covering:

• the coordination of IRFM "major projects" in the field of project management (support, resource monitoring and governing boards);
• the operational interface with ITER Organization, F4E (ITER and Broader Approach), CEA for activities related to ITER and the "Reactor";
• the coordination and promotion of "Reactor" activities.

SI²P is structured in 5 groups:

• Plasma Facing Components Group (Groupe Composant Face au Plasma - GCFPM)
• Fusion Design & Engineering Group (Groupe Conception et Ingénierie Fusion - GCIF)
• Plasma Heating Systems Group (Groupe Systèmes de Chauffage du plasma - GSCP)
• First Wall Protection Group (Groupe Protection de la Première Paroi - GP³)
• Methods & Projects Group (Groupe Méthodes et Projets - GMP)