Development

Westinghouse's eVinci reaches reported criticality

development2026-09-22energy

Claim

The newsletter reports that Westinghouse's eVinci microreactor reached criticality on a two-acre footprint.

Reported metric: two acres

Reporting date: 2026-09-22 (not necessarily the event date)

Sources

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

Welcome to September 22, 2026 (theinnermostloop.substack.com)
Source linked by the September 22 issue (www.energy.gov)

Indexed from the September 22 newsletter. Linked-source claims have not been independently verified.

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About

eVinci microreactor

Reported in

Welcome to September 22, 2026

Actor

Westinghouse

Referenced by

Welcome to September 22, 2026

Cite or correct this record

Citation formatCitation text

Westinghouse's eVinci reaches reported criticality
Innermost Loop KB — secondary record
Reporting date: 2026-09-22
KB permalink: https://nicholsn.github.io/innermost-loop-kb/developments/2026-09-22-evinci-criticality
Claim: The newsletter reports that Westinghouse's eVinci microreactor reached criticality on a two-acre footprint.
Attributed sources:
- Welcome to September 22, 2026 — https://theinnermostloop.substack.com/p/welcome-to-september-22-2026
- Source linked by the September 22 issue — https://www.energy.gov/ne/articles/westinghouse-evinci-microreactor-achieves-criticality-milestone
This citation does not imply independent verification of linked-source claims.

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