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Aurora – Oklo Application

Aurora – Oklo

Who:  

Oklo Power LLC.
 

What:  

Application for a custom combined license for a compact fast micro-reactor.
 

When:  

March 11, 2020 (date of application submittal)
 

Where:  

Idaho National Laboratory

Website:  

https://oklo.com/

Project Overview

The staff of the U.S. Nuclear Regulatory Commission (NRC) has ended its review of the Oklo Aurora custom combined license application. The staff has denied the application, without prejudice, as documented in the NRC’s January 6, 2022 letter to Oklo . As a result of this action, this web page will not longer be updated. 

 

Plant Characteristic

Description

Reactor Type

Compact fast reactor that builds on the Experimental Breeder Reactor-II and space reactor legacy.  Heat is transported using heat pipes that function as thermal superconductors.

Containment Type

Underground.  Reactor contained in several layers, including a robust cask-like module.

Power Level

4 MWth (~ 1.5 MWe)

Fuel

Metallic uranium-zirconium. High Assay Low Enriched Uranium (HALEU)

Balance of Plant

Supercritical CO2 Power Conversion System

For additional detail, see the following related pages:

  • Application Documents
  • Meetings
  • March 27, 2020 Press Release
  • January 6, 2022 Press Release
  • TO LOCATE OKLO PUBLIC ADAMS DOCUMENTS ENTER THE FOLLOWING DOCKET NUMBERS IN THE "DOCKET NUMBER" FIELD UNDER "ADVANCED SEARCH:"
    • Oklo pre-application – April 1, 2016 – December 31, 2017 Docket PROJ0823
    • Oklo pre-application – January 1, 2018 – June 5, 2020 Docket 99902046
    • Oklo application review – June 6, 2020 – present Docket 05200049

Contacts

For additional information regarding the North Anna ESP, please Contact a Public Affairs Officer.

Page Last Reviewed/Updated Friday, March 06, 2026

Page Last Reviewed/Updated Friday, March 06, 2026