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Private fusion sector

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A privately financed fusion industry has formed over the last decade, pursuing routes ranging from high-field compact tokamaks to field-reversed configurations and direct electricity conversion schemes that avoid a steam cycle entirely. The Fusion Industry Association's 2025 global report covered 53 companies with cumulative funding of about $9.7 billion, a roughly five-fold increase since 2021, of which about $2.64 billion was raised in the twelve months to July 2025; the same report describes access to funding as a continuing major challenge. Several of these companies have announced dates for net gain and for grid connection in the late 2020s and early 2030s. Those are corporate announcements. They are not forecasts, not independent assessments and not evidence, and this Journey treats them strictly as declared targets. The sector's real significance so far is that it has changed who is building fusion machines and how fast, not that it has demonstrated anything a public laboratory has not.

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Assembled narrative · 1

Assembled from 22 blocks · 2 evidence · 23 related

  1. Story
  2. A privately financed fusion industry has formed over the last decade, pursuing routes ranging from high-field compact tokamaks to field-reversed configurations and direct electricity conversion schemes that avoid a steam cycle entirely. The Fusion Industry Association's 2025 global report covered 53 companies with cumulative funding of about $9.7 billion, a roughly five-fold increase since 2021, of which about $2.64 billion was raised in the twelve months to July 2025; the same report describes access to funding as a continuing major challenge. Several of these companies have announced dates for net gain and for grid connection in the late 2020s and early 2030s. Those are corporate announcements. They are not forecasts, not independent assessments and not evidence, and this Journey treats them strictly as declared targets. The sector's real significance so far is that it has changed who is building fusion machines and how fast, not that it has demonstrated anything a public laboratory has not.
  3. Knowledge
  4. Tritium
  5. Private fusion sector
  6. Connections
  7. Tritium
  8. Commonwealth Fusion Systems' declared target for net energy gain at SPARC
  9. Tokamak (toroidal magnetic confinement)
  10. Inertial confinement fusion
  11. ITER
  12. Tritium breeding blanket
  13. Private fusion sector
  14. JET's DTE1 campaign sets the first deuterium-tritium fusion power record
  15. JET's DTE2 campaign releases 59 MJ in a single pulse
  16. NIF achieves target gain greater than unity for the first time
  17. JET sets the single-pulse fusion energy record of 69.26 MJ
  18. JET ceases plasma operations after 105,842 pulses
  19. ITER's declared target date for the start of deuterium-tritium operation
  20. Evidence
  21. Scale, growth and self-reported funding of the private fusion sector, and the sector's own statement that access to funding remains a major challenge
  22. The private sector's commercial fusion dates are company-declared targets for machines that have not yet operated, not independently assessed forecasts
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/atlas?object=ORG_FUSION_PRIVATE_SECTOR&experience=ORG_FUSION_PRIVATE_SECTOR