U3O8$...0.00%|CCJ$...0.00%|OKLO$...0.00%|CEG$...0.00%|URA$...0.00%|URNM$...0.00%|NXE$...0.00%|U3O8$...0.00%|CCJ$...0.00%|OKLO$...0.00%|CEG$...0.00%|URA$...0.00%|URNM$...0.00%|NXE$...0.00%|
SECOND ATOMIC AGE
reactorsCONCEPTUAL_DESIGN

Halo MMR

**Vendor/Designer:** [[vendors/hadron-energy]]

Key Stats

CountryUSA
StatusCONCEPTUAL_DESIGN
Sources1
Tags5
UpdatedMay 10, 2026
Data QualityHigh Quality

100/100

Halo MMR

Status: CONCEPTUAL_DESIGN Category: SMR Country: USA USA Vendor/Designer: hadron-energy Type: Pressurized water reactor [Pressurized water reactor](/library/wiki/technologies/Pressurized water reactor) Capacity: N/A

Overview

Halo MMR is a pressurized water small modular reactor (SMR) in conceptual design by Hadron Energy in the USA. It is notable for a uranium conversion agreement with ConverDyn, supporting civilian nuclear fuel supply chains. No operational history or specific site location is available yet.

Key Facts

Notes

ConverDyn uranium conversion agreement


Source: IAEA PRIS / reactors_canonical · Enriched by Grok Last updated: 2026-05-10

Sources

  • NRC Power Reactor List — General list of US power reactors, as specific docket for Halo MMR is not available due to its conceptual status.
  • World Nuclear Association - USA Profile [UNVERIFIED] — Overview of nuclear power development in the USA, including emerging SMR designs.
  • World Nuclear News — Potential source for updates on SMR concepts like Halo MMR, though specific articles are not confirmed at this time.

Sources (1)

Related Notes

Tags:reactorssmrconceptual_designhadron-energypressurized-water-reactor