Nuclear Fusion Achieves Net Energy Gain for Second Time at LLNL
Lawrence Livermore National Laboratory has achieved net energy gain from nuclear fusion for the second time, producing 50% more energy than the lasers used to trigger the reaction. Scientists say commercial fusion is now a matter of engineering, not physics.
Fusion breakthrough at LLNL
Scientific Milestone
The National Ignition Facility achieved fusion ignition with a gain of 1.5—the reaction produced 50% more energy than was used to trigger it. The result has been replicated multiple times.
Path to Power
While the achievement proves fusion works, significant engineering challenges remain before commercial power plants. Researchers estimate demonstration plants could operate by 2040.
Investment Surge
Private fusion companies have raised over $5 billion following the breakthrough. Multiple approaches—laser, magnetic confinement, and novel designs—are racing toward commercialization.
Lawrence Livermore achieves net energy gain in fusion again, producing 50% more energy and advancing toward commercial reactors by 2040.
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