Google–Kairos Advanced Nuclear Orderbook

United StatesStatus under reviewProgram

Headline capacity: See constituent sites
Updated: Oct 28, 2026

Master plant-development program for multiple Kairos deployments delivering up to 500 MW by 2035. Google–Kairos Advanced Nuclear Orderbook is in United States, US and is a program with development status.

Constituent sites / phases

Kairos Hermes 2 Demonstration Plant · Data center campus

Capacity

Orderbook capacity

Source report

500 MW

Generation capacity; not IT capacity

Source

Operating IT capacity: Not established in published records

A missing figure does not mean zero. Planned, utility and generation figures are not operating IT capacity.

Development

Initial and follow-on reactor deploymentsAnnounced or preconstruction

Hermes 2 is first; later sites/configurations remain undisclosed.

Milestones (2)

Google and Kairos announce up-to-500-MW orderbook

Oct 14, 2024 · Recorded actual event

Completed · Announced

Source not linked

Target horizon for up to 500 MW

2035 · Forecast / planned record

Forecast · Event type not stated

Source not linked

Participants

Google

Customer

Sources by role

Customer (1)

Our first advanced nuclear reactor project with Kairos Power and TVA · Aug 18, 2025 · Corroborating

Customer (1)

New nuclear clean energy agreement with Kairos Power · Oct 14, 2024 · Primary

Kairos Power LLC

Developer

Sources by role

Developer (1)

New nuclear clean energy agreement with Kairos Power · Oct 14, 2024 · Primary

Developer (1)

Kairos Power iterative development · Corroborating

Site & development

Follow on completion target

Forecast

2035

Source

Additional project facts

Initial deployment target

Forecast

2030

Source

Infrastructure & permits

Technical details (1)

Electric grid

Under construction

500 MW

Multiple deployments through 2035; current delivered capacity is zero.

Public-source research. Plans may change. See Evidence for sources and qualifications.