Methodology
Our data combines primary sources, company filings, peer-reviewed literature, and direct interviews with operators.
Funding rounds are cross-checked against PitchBook, Crunchbase, FIA reports, and direct company disclosures. Estimates are flagged.
Plasma performance figures are sourced from peer-reviewed publications (Nature, Physics of Plasmas) and conference proceedings (APS-DPP, IAEA FEC). Company claims are noted as such until independently reproduced.
ITER, NIF, EUROfusion, UKAEA, and CFETR data come from official program publications and budget documents.
Our compare tool uses a transparent multi-factor model: capital efficiency, technical readiness level, supply-chain risk, and timeline credibility. Weights are user-adjustable.
Spot an error? Email corrections@fusionenergynews.com. We log every correction publicly.