- DOE Its Opens Checkbook to Four Firms for HALEU Contracts
- Urenco Signs Enrichment Contract With French HTGR Developer Jimmy
- Tokamak Energy Gives Details of Its Pilot Fusion Energy Plant Design
- U Michigan Opens $35M Center for Nuclear Powered Space Propulsion
DOE Opens Its Checkbook to Four Firms for HALEU Contracts
- DOE Awards $2.7 billion to Four Firms for HALEU Production Contracts
- Selected companies can compete for work to provide enrichment services to produce fuel for advanced reactors
Four companies have been awarded contracts funded by the President’s Inflation Reduction Act, creating strong competition and allowing DOE to select the firms that are the best fit for future work.
All contracts will last for up to 10 years and each firm winning a contract under the program will receive a minimum of $2 million. A total of $2.7 billion is available for these services, subject to congressional appropriations.
Selected companies include:
- Louisiana Energy Services (Urenco USA)
- Orano Federal Services
- General Matter
- American Centrifuge Operating (Centrus)
Asides from the usual business related press statements expected from an award of this magnitude, the four firms has little to say, for obvious competitive reasons, about how they will ramp up their operations to compete for pieces of DOE’s$2.7 billion pie.
The HALEU that DOE acquires through these contracts, in the form of UF6, will be used to support reactors like those under development through DOE’s Advanced Reactor Demonstration Program—TerraPower’s Natrium reactor and X-energy’s Xe-100.
How Much HALEU is Needed and How Much Will These Contracts Produce?
Under these four contracts, selected companies will bid on future work to produce and store HALEU in the form of uranium hexafluoride gas to eventually be made into fuel for advanced reactors. Under separate contracts to some of these same firms DOE will issue production orders for deconversion and fuel fabrication into uranium oxide or uranium metal fuels.
According to the HALEU Availability Program DOE projects that more than 40 metric tons of HALEU will be needed by 2030 with additional as yet unspecified amounts which will required each year thereafter to deploy a new fleet of advanced reactors in a timeframe that supports the Administration’s 2050 net-zero emissions target.
Additional demand numbers will be gathered through the surveys required by the Energy Act of 2020 and interactions with the members of the HALEU Consortium. Its members, which include TerraPower, X-Energy, BWXT, and other developers of advanced reactors, are all targeting electrical generation power levels near or below 300MWe either as single units or in multiples of units of smaller capacity.
Demand for HALEU will depend on the success of advanced reactor developers to license their designs at the NRC and to convince customers to place orders for multiple units in “fleet mode” in order to realize the economies of scale of factory production of nuclear reactors. which fit the IAEA definition of small modular reactors.
DOE says it is track to demonstrate domestic production at the Centrus enrichment facility in Piketon, OH. The demonstration is expected to produce a 900 kilogram/year production rate starting in 2024 to address near-term HALEU needs for fuel qualification testing and DOE-supported advanced reactor demonstration projects.
This number means that to meet DOE’s target of delivering 40 metric tonnes of HALEU by 2030, the four contracts will have to produce 39 metric tonnes over the next five years or, on average, eight metric tonnes/year, and, on average, leaving aside the actual production capacity of each contractor, two metric tonnes of HALEU per contractor per year which is twice the amount Centrus is tasked by DOE to product this year.
About DOE’s HALEU Programs
HALEU is uranium enriched between 5% and 19.5% U235, which increases the amount of fissile material to make the fuel more efficient relative to lower-enriched forms of uranium. Many advanced reactors will use HALEU to achieve smaller designs, longer operating cycles, and increased efficiencies over current technologies.
Advanced nuclear reactors are key to our nation’s clean energy future and meeting our nation’s ambitious clean energy and climate goals. The United States currently lacks commercial HALEU enrichment capabilities to support the deployment of advanced reactors.
These contracts support the buildout of a robust HALEU supply chain in the United States and complement last week’s announcement of contracts to support HALEU deconversion services. The HALEU enrichment/acquisition RFP is focused on mining/milling, conversion, enrichment, and storage activities. Whereas the second RFP is for HALEU deconversion from uranium hexafluoride gas to metal or oxide forms, as well as transport to deconversion site(s), if needed, and storage.
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Urenco Signs Enrichment Contract With French HTGR Developer Jimmy
- French company’s microreactor design will use TRISO fuel
(NucNet) Anglo-German-Dutch uranium enrichment company Urenco has signed a contract with France-based nuclear technology developer Jimmy to supply low-enriched uranium plus (LEU+) for its high-temperature gas-cooled (HTGR) micro reactor development project.
Urenco said in a statement that a first delivery is to be made in 2026 from Urenco’s US plant site in Eunice, New Mexico.
Jimmy says it designs reactors that provide industrial heat as an alternative to fossil fuels in support of decarbonization efforts. Jimmy’s proposed 20-MWt microreactor design will use tristructural-isotropic (TRISO) fuel.
According to Urenco, Jimmy’s design will initially use LEU+ with plans to move to high-assay, low-enriched uranium (HALEU) fuel once it is available.
“This announcement marks the second advanced fuels contract for Urenco, showing the market is starting to gather momentum,” said Magnus Mori, head of market development and technical sales at Urenco.
In November 2023, Canada’s Ontario Power Generation chose Urenco to provide uranium enrichment services required to fuel up to four first-of-a-kind GE Hitachi BWRX-300 small modular reactor plants at the Darlington site in Ontario.
Urenco has been investing in the expansion of its enrichment capacity, with projects announced in the US, the UK, and the Netherlands.
LEU+ refers to uranium enriched between 5% and 10% U-235, while Haleu has a higher enrichment level of 10% to 20%, with both fuel types being crucial for next-generation nuclear technologies.
Urenco expects to be able to supply HALEU to its advanced reactor customers in the early 2030s. In May 2024, the UK government announced it will provide funding to Urenco to build a dedicated HALEU facility at its Capenhurst site in northern England.
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Tokamak Energy Gives Details of Its Pilot Fusion Energy Plant Design
(WNN) Tokamak Energy, a UK-based company, gave first details of a high-field spherical tokamak plant “capable of generating 800 MW of fusion power and 85 MW of net electricity” as part of the USA’s Bold Decadal Vision for Commercial Fusion Energy program.
Tokamak Energy says that the aim is for the pilot fusion energy plant to be operational by the mid-2030s and gave details of the emerging design at the annual meeting of the American Physical Society Division of Plasma Physics in held Atlanta, Georgia earlier this month.
The company says “initial designs are for the tokamak to have an aspect ratio of 2.0, plasma major radius of 4.25 meters and a magnetic field of 4.25 Tesla, as well as a liquid lithium tritium breeding blanket”. It will include a new generation set of high temperature superconducting magnets “to confine and control the deuterium and tritium hydrogen fuel in a plasma many times hotter than the center of the sun”.
Tokamak Energy was spun out of the UK’s Atomic Energy Authority (UKAEA) in 2009. It announced in February last year it was to build a prototype spherical tokamak, the ST80-HTS, at the UKAEA’s Culham Campus, near Oxford, England, by 2026.
The objectives of the projects are;
- to demonstrate the full potential of high temperature superconducting magnets”
- to inform the design of its fusion pilot plant, to demonstrate the capability to deliver electricity into the grid in the 2030s,
- support the aim of producing globally deployable 500-megawatt commercial plants.
The US Department of Energy (DOE) Bold Decadal Vision aims to use public-private partnerships to accelerate fusion energy research and development to “enable commercially relevant fusion pilot plants” and demonstrate an operating fusion pilot plant, led by the private sector, in the 2030s.
Tokamak Energy, which became the first private firm to reach a plasma temperature of 100 million degrees Celsius, already has links with US national laboratories and universities and has had seven previous awards through the US Innovation Network for Fusion Energy (INFUSE) program. Last June it signed the agreement, as one of eight firms taking part in the DOE’s $46 million milestone-based fusion development program.
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U Michigan Opens $35M Center for Nuclear Powered Space Propulsion
To develop spacecraft that can “maneuver without regret,” the U.S. Space Force is providing $35 million to a national research team led by the University of Michigan. It will be the first to bring fast chemical rockets together with efficient electric propulsion powered by a nuclear microreactor.
Ultra Safe Nuclear Corp. will design a new lightweight microreactor while engineers at U-M will build a heat source that can mimic its output to test the other components of the power and space nuclear propulsion system.
The newly formed Space Power and Propulsion for Agility, Responsiveness and Resilience Institute involves eight universities and 14 industry partners and advisers in one of the nation’s largest efforts to advance space power and propulsion, a critical need for national defense and space exploration.
Right now, most spacecraft propulsion comes in one of two forms: chemical rockets, which provide a lot of thrust but burn through fuel quickly, or electric propulsion powered by solar panels, which is slow and cumbersome but fuel-efficient. Chemical propulsion comes with the highest risk of regret, as fuel is limited. But in some situations, such as when a collision is imminent, speed may be necessary.
Meanwhile, electric propulsion could be much faster, such as a 100-kilowatt Hall thruster built at U-M. The problem is finding the power to run these thrusters.
“The space station generates about 100 kilowatts of power, but the solar arrays are the size of a couple of football fields, and this is too large for some of the power-hungry applications that are of interest to the Space Force,” said Benjamin Jorns, U-M associate professor of aerospace engineering and institute director.
To power faster, efficient electric propulsion, one sub-team is developing a concept for a nuclear microreactor, exploring the early feasibility of a new path for safe, reliable and sustainable nuclear power for space. Others will build technologies to turn the heat from a microreactor into usable electricity, and electric engines to turn the electricity into thrust. The propulsion system design includes a chemical rocket for quick maneuvers.
While chemical rockets need fuel to burn, electric propulsion needs propellant to accelerate. Both generate thrust by shooting out material opposite the direction of travel. Electric thrusters strip electrons off the propellant atoms—turning them into ions—and use electric fields to accelerate them to extremely high speeds. To simplify refueling, the team is trying to demonstrate fuels that can be used to drive the chemical rocket, and which are also effective propellant for electric propulsion.
Two teams will explore how to extract the thermal energy as electricity. U-M and Spark Thermionics will investigate thermionic emission cells, which take advantage of the difference between the heat of the reactor and the cold of space to help drive an electrical current. Another U-M team will pair with Antora Energy to implement thermal photovoltaics, like solar cells that turn heat into electricity.
Cornell University, Advanced Cooling Technologies and Ultramet will design lightweight panels that can extract waste heat and radiate it out into space, as the reactor will produce more energy than either conversion approach can realistically use. The University of Wisconsin, U-M and Cislunar Industries will design a power processing module that will convert the electricity extracted from the microreactor so that it can meet the high power demands of the electric engine.
Subteams will explore three different styles of electric propulsion:
- the Hall thruster (Jorns’ team at U-M),
- the applied-field magnetoplasmadynamic thruster (Princeton University and Champaign Urbana Aerospace) and
- the electron cyclotron resonance thruster (University of Washington and NuWaves Inc.).
Any of these thrusters will rely on a module that turns the propellant into a gas, developed by Western Michigan University and Champaign Urbana Aerospace, and a cathode to prevent the spacecraft from accumulating an electric charge by neutralizing the propellant, developed by Colorado State University.
A new concept for a chemical rocket will be developed by U-M and Pennsylvania State University. Benchmark Space Systems will provide an already developed commercial system for a proof-of-concept test.
The project will be supported with computer modeling and experimental diagnostics developed by U-M, Cornell, Colorado State and the University of Colorado. Analytical Mechanics Associates will assess the full system.
Northrop Grumman, Lockheed Martin, Westinghouse and Aerospace Corp. form the advisory board.
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