Also known as nuclear fusion power
experimental type of electricity generation using nuclear fusion
~40 min read
Fusion plasma in the Experimental Advanced Superconducting Tokamak. Fusion power is a potential method of electric power generation from heat released by nuclear fusion reactions. In fusion, two light atomic nuclei combine to form a heavier nucleus and release energy. Devices that use this process are known as fusion reactors.
Research on fusion reactors began in the 1940s. As of 2025, the National Ignition Facility (NIF) in the United States is the only laboratory to have demonstrated a fusion energy gain factor above one, but efficiencies orders of magnitude higher are required to reach engineering breakeven (a net electricity-producing plant) or economic breakeven (where the net electricity pays for the plant's whole-life cost).
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).