TerraPower’s Natrium reactor set for imminent start-up

TerraPower launches its Natrium demonstration project, using sodium fast reactor technology and molten salt energy storage.

Share:

TerraPower ‘s Natrium reactor incorporates sodium-cooled fast reactor technology and a molten-salt-based energy storage system, capable of boosting output from 345 MWe to 500 MWe for more than five and a half hours as needed. Located in Kemmerer, Wyoming, near a coal-fired power plant currently being shut down, this project aims to demonstrate the commercial viability of new approaches to nuclear power.

Partnerships and development

TerraPower is working closely with the Nuclear Regulatory Commission (NRC) through pre-application meetings, and is confident in its regulatory approach. The design of the project means that non-nuclear construction can start as early as this summer, while the nuclear part will follow NRC approval.

Commitments and advances

Chris Levesque, President and CEO of TerraPower, emphasizes the importance of this step towards commercialization of the Natrium reactor and its innovative integration into the energy grid. The company is committed to working with local stakeholders, elected officials and regulatory partners to complete the non-nuclear construction and move forward with the approval process.

Support for the development of the Natrium reactor

To strengthen the nuclear supply chain in North America, TerraPower announced in February a series of contracts with key suppliers for essential components of the Natrium reactor. These contracts cover design, manufacturing, testing and qualification services for equipment such as the seismic isolation system, sodium-salt heat exchanger and sodium pumps.

The NRC is also involved in the review of advanced non-water-moderated reactor projects, including construction license applications for Kairos Power LLC’s Hermes and Hermes 2 advanced test reactors, as well as an application for a molten salt research reactor by Abilene Christian University. Although these projects are not intended to be commercial power plants, the Hermes 2 reactors are designed to generate electricity.

Hunatom announces a strategic alliance with Synthos Green Energy to introduce US small modular reactor technology, strengthening energy ties between Hungary, Poland and the United States.
A joint feasibility study project on Korean i-SMR modular reactors has just been launched for a future nuclear site at the border of the Aure and Heim municipalities, aiming for significant regional industrial impact.
Unit 3 of the Tomari nuclear power plant takes a major step towards restart after its safety equipment was validated by the Japanese regulator.
The Russian Minister of Energy announces strengthened cooperation in uranium and civil nuclear energy in Niger, reinforcing Russia's economic presence in a key sector following the withdrawal of several Western players.
Last Energy reaches a key regulatory step for its PWR-20 microreactor project in Llynfi, advancing towards the objective of securing a site licence by December 2027 from British authorities.
Slovenské elektrárne has signed an agreement with Urenco for the purchase of enriched uranium for the Bohunice and Mochovce nuclear power plants, strengthening the diversification of its supply sources until the mid-2030s.
Emirates Nuclear Energy Company signs two major agreements with Hyundai Engineering & Construction and Westinghouse, strengthening its position in the global civil nuclear market and paving the way for new international industrial opportunities.
First Hydrogen expands its collaboration with the University of Alberta to optimise small modular nuclear reactor design and support green hydrogen development amid the growth of artificial intelligence data centres.
The French and Belgian energy ministers have signed a declaration of intent to strengthen ties between Paris and Brussels on nuclear energy, as Belgium has abandoned its 2003 nuclear phase-out plan.
The United States Nuclear Regulatory Commission has authorised the restart of the Palisades power plant, marking a key milestone for Holtec in reintegrating this reactor into the US energy mix. —
The Genkai nuclear power plant detected the intrusion of three unidentified drones, prompting an immediate investigation by Japanese authorities into this unusual incident with potential national security implications.
KATCO, a joint venture between Orano and Kazatomprom, has started operations at the South Tortkuduk site, backed by a $190mn investment, targeting a production capacity of 4,000 tonnes per year by 2026.
Tehran agrees to host experts from the International Atomic Energy Agency in the coming weeks, excluding any visit to sensitive sites as diplomatic tensions persist with European nations and the United States.
Standard Uranium announces the results of a high-resolution electromagnetic survey at the Corvo project, confirming 29 kilometres of conductive corridors and launching the planning of an inaugural drilling programme for 2026.
NANO Nuclear Energy assembles and tests its annular induction pump prototype, marking progress for its microreactor programmes and paving the way for potential commercialisation of the technology.
Hungary reaffirms its intent to double the capacity of its Paks nuclear power plant in partnership with Rosatom, with concrete works expected to begin in the autumn.
Arabelle Solutions, a subsidiary of EDF, will provide turbine island equipment for the first BWRX-300 small modular reactor project in Canada, marking a milestone for the industrialisation of SMRs in North America.
Framatome will supply nuclear fuel and technical services to ENEC, strengthening the United Arab Emirates’ energy supply chain for the Barakah nuclear plant.
French start-up Stellaria secures €23mn ($25.2mn) in funding to accelerate the design of its fast neutron nuclear reactor, with first fission expected in 2029 and commercial deployment targeted for 2035.
The Bulgarian National Audit Office report highlights persistent delays and contractual irregularities in the implementation of the national repository for low- and intermediate-level radioactive waste.