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
reactorsOperating

BREST-OD-300

**Vendor/Designer:** [[vendors/rosatom---nikiet]]

Key Stats

CountryRussia
StatusOperating
Sources1
Tags5
UpdatedMay 10, 2026
Data QualityHigh Quality

100/100

BREST-OD-300

Status: OPERATIONAL Category: POWER Country: Russia Russia Vendor/Designer: rosatom---nikiet Type: Lead-cooled fast reactor [Lead-cooled fast reactor](/library/wiki/technologies/Lead-cooled fast reactor) Capacity: 100 MWe

Overview

The BREST-OD-300 is an operational lead-cooled fast reactor developed by Rosatom/NIKIET in Russia, located at a pilot facility. It holds significance as a demonstration of closed fuel cycle technology for sustainable nuclear energy. Having achieved first criticality, it is currently in the startup testing phase.

Key Facts

Notes

First criticality achieved · Startup testing phase · Closed fuel cycle pilot


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

Sources

Sources (1)

Related Notes

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Tags:reactorsfast-reactoroperatingrosatom---nikietlead-cooled-fast-reactor