In 2022, researchers at Lawrence Livermore National Laboratory achieved nuclear-fusion net energy gain, and repeated the result in 2023, though the experimental apparatus consumed far more power than the fusion fuel produced.
Notes on verification
Confirmed by AIP, LLNL, Washington Post, IEEE Spectrum, and other independent sources; the caveat about total facility energy consumption vastly exceeding fusion output is well documented and consistently reported. [tier=gold indep_score=0.97 clusters=5 claim_tier=notable]
Sources
- The biggest scientific breakthroughs of the last 25 years—and ... (seed:science_and_space)
- https://www.aip.org/fyi/2022/national-ignition-facility-achieves-long-sought-fusion-goal (corroboration)
- https://www.washingtonpost.com/climate-solutions/2023/08/06/nuclear-fusion-net-energy-gain-higher-yield/ (corroboration)
- https://lasers.llnl.gov/science/achieving-fusion-ignition (corroboration)
- https://spectrum.ieee.org/national-ignition-facility-impractical (corroboration)
- https://techcrunch.com/2025/05/17/laser-powered-fusion-experiment-more-than-doubles-its-power-output/ (corroboration)