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OwnershipOwnership not confirmedNo SEC registration found; ownership not yet verified from a primary source · checked Nov 11, 2026
Commercial developmentNot yet assessedWe only state a stage once a source supports it. Having a product on sale does not show it works or makes money.
Investment accessNo accessible investment route verifiedNo public listing identified in the reviewed sources. · checked Nov 11, 2026

Evidence is labelled on each development below (company-reported, regulatory filing or government record), not on the company as a whole. Coverage is not an offer to invest. Private ownership does not imply available shares. Next scheduled recheck: Dec 11, 2026.

15developments published
—US federal obligations on record
0federal awards
Sep 21, 2026latest development

Timeline

  1. Sep 21, 2026 · Project: financing

    Hermes 2 Demonstration Plant: Samsung C&T strategic investment in Kairos Power (company level), binding term sheet, subject to regulatory approvals; stated purpose is Hermes 2 delivery (conditional)

    Company-published
  2. May 23, 2026 · Project: construction

    Hermes 2 Demonstration Plant: DOE account of the Hermes 2 groundbreaking (separate from Hermes 1 nuclear construction) (site work)

    Government-published
  3. Apr 17, 2026 · Project: construction

    Hermes 2 Demonstration Plant: Groundbreaking on Hermes 2 (Kairos calls it the start of construction; nuclear safety-related construction not reported) (site work)

    Company-published
  4. Oct 21, 2025 · Project: technical milestone

    Hermes 2 Demonstration Plant: Redesign: one 50 MWe reactor in place of the original two-unit plant (design disclosed)

    Company-published
  5. Aug 18, 2025 · Project: customer / offtake

    Hermes 2 Demonstration Plant: Google's account of the Hermes 2 PPA between Kairos Power and TVA (agreement signed)

    Company-published
  6. Aug 18, 2025 · Project: customer / offtake

    Hermes 2 Demonstration Plant: Power purchase agreement, Kairos Power and TVA, Hermes 2 output (Google receives the clean energy attributes) (agreement signed)

    Company-published
  7. Aug 18, 2025 · Project: stated target

    Hermes 2 Demonstration Plant: commercial operation targeted for 2030

    Company-published
  8. Nov 21, 2024 · Project: permissions

    Hermes 2 Demonstration Plant: Construction permits CPTR-7 and CPTR-8, two units of the Hermes 2 test reactor facility (not an operating licence) (permission issued)

    Government-published
  9. Oct 14, 2024 · Project: customer / offtake

    Hermes 2 Demonstration Plant: Google–Kairos Master Plant Development Agreement for a 500 MW fleet by 2035 (this release does not name Hermes 2; later releases call Hermes 2 its first deployment) (agreement signed)

    Company-published
  10. Jan 10, 2024 · Project: technical milestone

    Hermes 2 Demonstration Plant: Non-nuclear Engineering Test Unit (ETU), same KP-FHR technology, Albuquerque; not Hermes 2 hardware (testing reported)

    Company-published
  11. Sep 11, 2023 · Project: permissions

    Hermes 2 Demonstration Plant: Construction permit application accepted for docketing (Docket Nos. 50-611 and 50-612) (application accepted for review)

    Government-published
  12. Sep 11, 2023 · Project: technical milestone

    Hermes 2 Demonstration Plant: Hermes 2 design as described in the NRC docketing notice (original two-unit design) (design disclosed)

    Government-published
  13. Jul 25, 2023 · Project: stated target

    Hermes 2 Demonstration Plant: construction targeted for July 2025

    Secondary report
  14. Jul 14, 2023 · Project: permissions

    Hermes 2 Demonstration Plant: Construction permit application, two-unit Hermes 2 facility (application submitted)

    Government-published
  15. Date not stated · Project: customer / offtake

    Hermes 2 Demonstration Plant: TVA's annual report statement of the Hermes 2 PPA (agreement signed)

    Company-reported

Profile

Coverage
Project records only

Mix of developments

Project: customer / offtake 4Project: technical milestone 3Project: permissions 3Project: construction 2Project: stated target 2Project: financing 1

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Projects on record

Projects Kairos Power develops or takes a sourced role in. Each dimension of each unit moves only when a source says so; covering several projects does not imply a complete pipeline.