Development

Commonwealth Fusion's demo plant is 75% complete

development2025-12-13

Claim

Commonwealth Fusion Systems' commercial demonstration site near Boston is 75% complete.

Reported metric: 75% complete

Reporting date: 2025-12-13 (not necessarily the event date)

Sources

Attribution and reporting linked by this record; links do not imply independent verification.

Welcome to December 13, 2025 (theinnermostloop.substack.com)

Fusion described as a construction schedule rather than a physics result.

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About

Commonwealth Fusion demo plant

Reported in

Welcome to December 13, 2025

Actor

Commonwealth Fusion Systems

Evidence for

Industrializing geology and atmosphere

Referenced by

Welcome to December 13, 2025

Cite or correct this record

Citation formatCitation text

Commonwealth Fusion's demo plant is 75% complete
Innermost Loop KB — secondary record
Reporting date: 2025-12-13
KB permalink: https://nicholsn.github.io/innermost-loop-kb/developments/2025-12-13-cfs-demo-75-percent
Claim: Commonwealth Fusion Systems' commercial demonstration site near Boston is 75% complete.
Attributed sources:
- Welcome to December 13, 2025 — https://theinnermostloop.substack.com/p/welcome-to-december-13-2025
This citation does not imply independent verification of linked-source claims.

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