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B2Master agreementNeeds verification

Google – Kairos advanced reactor fleet

Announced Oct 14, 2024 Multiple sites, not disclosedLast verified Aug 3, 2026

Contractual weight

B2 evidence

A Master Plant Development Agreement governs a fleet of projects, but only the separate 50 MW Hermes 2 implementation has a disclosed binding PPA.

Optioned MW excludes the separately listed 50 MW Hermes 2 PPA to prevent double counting against the 500 MW fleet ceiling.

Capacity

Capacity

MW firm
Not disclosed
MW optioned
450 MW

Record history

Status timeline

  1. Oct 14, 2024

    Deal announced

  2. Upgraded

    Aug 18, 2025

    Kairos and TVA signed the first project PPA for the 50 MW Hermes 2 deployment.

Provenance

Sources

Kairos Power and Google

Kairos Power · Oct 14, 2024

Supports: Master Plant Development Agreement description and identification of Hermes 2 as the first 50 MW deployment.