Tracked metric

Longest sustained plasma

How long a high-performance plasma is held. Steady-state operation is the bridge from physics demos to a real power plant.

1,337sReached · Feb 2025

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1337 s Feb 2025 WEST (CEA) Press · 2025-02
1066 s Jan 2025 EAST (ASIPP) Press · 2025-01
102 s 2024 KSTAR Press · 2024-03
403 s Apr 2023 EAST (ASIPP) Press · 2025-01
101 s Jul 2017 EAST (ASIPP) Press · 2025-01

More on this

Explainer Feb 3, 2026

Why temperature and duration both matter

Hot enough to fuse, long enough to be a power source: EAST's 160M°C and WEST's 1,337 s tackle the two halves of the same problem. Neither alone makes a reactor.

Nuclear Fusion EAST (ASIPP)