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Spotlight
Newcleo Americas
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Project Overview
The U.S. Nuclear Regulatory Commission (NRC) is currently engaged in pre-application activities with Newcleo Americas as of March 2026. Newcleo Americas is developing its LFR-AS-200, a 480 MWth pool-type liquid metal fast reactor with a designed electrical output of 200 MWe. The LFR-AS-200 uses lead as its primary coolant and working fluid at atmospheric pressure. The use of lead is intended to provide benefits to safe operation of a high boiling point, low-pressure operation, inherent negative reactivity feedback, radiation shielding, and radionuclide retention. The LFR-AS-200 is designed to use Mixed-Oxide Fuel (MOX). Newcleo Americas is engaged with the NRC for the development of a MOX fuel fabrication facility, for information related to this facility please see NRC Docket 07007051.
For more information related to the LFR-AS-200, please see the Newcleo Americas LFR-AS-200 pre-application documents (NRC Docket 99902162).
To subscribe to the Newcleo Americas email service, select Newcleo Americas LFR from the Advanced Reactors list after entering your email into the GovDelivery system.
Pre-Application Activities
| Document | Type | Reference | Status |
|---|---|---|---|
| U.S. LFR-AS-200 Reactor Technology Regulatory Engagement Plan, Rev 1. | Regulatory Engagement Plan | ML26184A005 | No review requested |
Contacts
| Contacts for the Antares Nuclear, Inc. Pre-Application Review | |
|---|---|
| Lead Project Manager | Brian Bettes |
| Contact a Public Affairs Officer | |
Page Last Reviewed/Updated Tuesday, September 08, 2026
Page Last Reviewed/Updated Tuesday, September 08, 2026