Low-confidence record: sources are thin or conflict. Figures below are the best available public statements, not confirmed facts.

SST-1 is India's superconducting research tokamak at the Institute for Plasma Research, Gandhinagar, fully commissioned in 2013 after a rebuild. It has produced repeatable ~500 ms discharges; India plans a successor, SST-2, as a bridge toward an Indian DEMO.

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Current state

Status	Operating
Country	India
Location	Institute for Plasma Research, Gandhinagar, Gujarat
Developer	Institute for Plasma Research (Department of Atomic Energy)
Developer type	Public
Concept	Tokamak
Fuel	D-D
Purpose	Research
Public funding	Indian Department of Atomic Energy

Notes

No 2020s status found; operating status assumed from IPR programme references. currency not recorded.

Timeline

2005 — SST-1 was fabricated at IPR. (source)
2013 — SST-1 was fully commissioned after an improved version was assembled in 2012. (source)
2015 — SST-1 was producing repeatable discharges of ~500 ms with currents above 75 kA at 1.5 T. (source)

The timeline is append-only: corrections are added as new entries. Stated targets appear in the current-state table, never as milestones.

Related projects

ARC (Commonwealth Fusion Systems) Design · United States
BEST (Burning Plasma Experimental Superconducting Tokamak) Under construction · China
CFEDR / China Fusion Energy Co. demo reactor (successor to CFETR) Design · China
EAST (Experimental Advanced Superconducting Tokamak) Operating · China
EU DEMO (EUROfusion Demonstration Power Plant) Concept · European Union
FAST (Fusion by Advanced Superconducting Tokamak) Design · Japan
HH170 (Energy Singularity) Design · China
HH70 (Energy Singularity) Operating · China

See all 51 projects in the Fusion Energy Companies & Projects Tracker →

Sources

Steady State Superconducting Tokamak — Wikipedia, checked 2026-10-11
Steady State Superconducting Tokamak (SST-1) — IAEA INIS (primary), checked 2026-10-11