China's Fusion Reactor Targets Ignition by 2027

China's Experimental Advanced Superconducting Tokamak (EAST) is on track to achieve plasma ignition by 2027 — a milestone that would make it the first fusion reactor in the world to sustain plasma without external heating. If successful, the achievement would represent a decisive step toward commercial nuclear fusion and could shift the balance in the long-running competition between China and the United States for clean energy leadership.

Nuclear fusion replicates the process that powers the sun and is far more energy-dense than conventional nuclear fission. Unlike fission, it produces no long-lived radioactive waste — making it a highly attractive long-term solution to rising global electricity demand, particularly as AI-driven data center load continues to grow across North America and beyond.

Achieving ignition — the point at which a reactor sustains a fusion reaction without continuous external energy input — is technically demanding. Plasma must be superheated to approximately 150 million degrees Celsius, far exceeding the temperature at the sun's core. While the U.S. National Ignition Facility in Livermore, California, achieved ignition in a research context, EAST would be the first tokamak-style reactor to reach this threshold, bringing the technology closer to actual power generation.

The U.S. National Ignition Facility achievement marked a landmark moment for the field, but as our overview of why nuclear fusion is still the holy grail of clean energy makes clear, sustaining net energy gain in a tokamak designed for power generation remains a fundamentally different engineering challenge.

EAST is not China's only active fusion program. The country's Burning Plasma Experimental Superconducting Tokamak (BEST), under development at China's leading plasma-physics lab, is projected to go further — potentially becoming the first reactor in history to generate electricity from nuclear fusion.

Beijing has formally designated fusion one of eight priority "frontier technologies" in its current five-year plan, backing it with substantial government funding and streamlined regulatory oversight. The United States, by contrast, is pursuing a private-sector model, with Commonwealth Fusion Systems among the leading contenders — also targeting net energy production by 2027.

The EAST reactor is the same platform that has been central to international fusion research for years — for a deeper look at how tokamak magnetic confinement works and what ITER's 500 MW target means for the broader race, see our report on the science behind ITER nuclear fusion.

Experts note that significant engineering and supply chain challenges remain before commercial fusion becomes a reality for either nation. But the strategic stakes are considerable: the country that commercializes fusion power first will hold a significant advantage in global energy markets and geopolitical influence for decades to come.

While fusion timelines extend into the next decade, the near-term nuclear buildout is already under way through a parallel track — compact fission designs like the MARVEL microreactor at Idaho National Laboratory point to where next-generation nuclear power is heading in the interim.