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New nuclear reactor technologies under development
Generation IV (Gen IV) reactors are nuclear reactor design technologies that are envisioned as successors of generation III reactors. The Generation IV
Generation_IV_reactor
Design classification for nuclear reactors
A generation II reactor is a design classification for a nuclear reactor, and refers to the class of commercial reactors built until the end of the 1990s
Generation_II_reactor
Class of nuclear reactors with improved safety over its predecessors
Generation III reactors, or Gen III reactors, are a class of nuclear reactors designed to succeed Generation II reactors, incorporating evolutionary improvements
Generation_III_reactor
Type of nuclear reactor cooled by molten material
power plant using a thorium fuel cycle in a breeder reactor. Increased research into Generation IV reactor designs renewed interest in the 21st century with
Molten-salt_reactor
Device for controlled nuclear reactions
from the reactor pressure vessel to the turbine. Supercritical water reactor (SCWR) SCWRs are a Generation IV reactor concept where the reactor is operated
Nuclear_reactor
Fast-neutron nuclear reactor cooled by molten lead
The lead-cooled reactor design has been proposed as a generation IV reactor. Plans for future implementation of this type of reactor include modular arrangements
Lead-cooled_fast_reactor
German nuclear reactor design proposal with liquid metal cooling loops
reactors of the Generation IV International Forum. The Dual Fluid Reactor is classified by its developers as the first Generation V nuclear reactor,
Dual_fluid_reactor
Concept nuclear reactor whose water operates at supercritical pressure
The supercritical water reactor (SCWR) is a concept Generation IV reactor, designed as a light water reactor (LWR) that operates at supercritical pressure
Supercritical_water_reactor
Topics referred to by the same term
Fourth generation warfare, conflict characterized by a blurring of the lines between war and politics, soldier and civilian Generation IV reactor, a set
Fourth_generation
Type of nuclear reactor that operates at high temperatures as part of normal operation
development of the HTGR is the Generation IV very-high-temperature reactor (VHTR). The use of a high-temperature, gas-cooled reactor for power production was
High-temperature gas-cooled reactor
High-temperature_gas-cooled_reactor
Type of nuclear reactor cooled by a gas
The gas-cooled fast reactor (GFR) system is a nuclear reactor design in development. Classed as a Generation IV reactor, it features a fast-neutron spectrum
Gas-cooled_fast_reactor
Nuclear reactor design
IFR was a sodium-cooled fast reactor (SFR) is its closest surviving fast breeder reactor, a type of Generation IV reactor. The U.S. Department of Energy
Integral_fast_reactor
Lead-cooled reactor family designed in Russia
Teplonositelem, 'Naturally Safe Lead-Cooled Fast Reactor') is a generation IV lead-cooled fast nuclear reactor. BREST-300 model is under construction since
BREST_(reactor)
China is developing several generation IV reactor designs. In December 2023, China’s HTR-PM, a high-temperature gas-cooled reactor at Shidao Bay, entered commercial
Nuclear_power_in_China
Chinese small modular nuclear reactor
a Chinese small modular nuclear reactor. It is a high-temperature gas-cooled (HTGR) pebble-bed generation IV reactor evolved from the HTR-10 prototype
HTR-PM
Russian fast breeder nuclear reactor, operating since 2016
portal Russia portal Generation IV reactor BN-Reactor BN-350 reactor – Deactivated fast breeder reactor in Aktau, Kazakhstan BN-600 reactor – Russian sodium-cooled
BN-800_reactor
Proposed fuel-recycling commercial reactor
Powerhouse is a small modular reactor design developed by Oklo Inc. It is a 75 MW pool-type sodium-cooled fast reactor. Its first commercial unit is under
Aurora_nuclear_reactor
Planned lead-cooled reactor demonstrator
Fuel: MOX or Uranium (20%) Fast breeder reactor Fast neutron reactor Generation IV reactor "Generation IV & SMR". ansaldoenergia.com. "Nuclearelectrica
ALFRED_(nuclear_reactor)
Nuclear reactor where fast neutrons maintain a fission chain reaction
reactor Gas-cooled fast reactor Generation IV reactor Lead-cooled fast reactor Nuclear fuel cycle Sodium-cooled fast reactor Thermal-neutron reactor With
Fast-neutron_reactor
Fast breeder nuclear reactor under development in Russia
since 2016 BREST-300 - generation IV lead-cooled fast reactor, in construction since 2020 Generation IV reactor "Fast Neutron Reactors". world-nuclear.org
BN-1200_reactor
Type of very-high-temperature reactor
considered a type of very-high-temperature reactor (VHTR), one of the six classes of nuclear reactors in the Generation IV initiative. The basic design features
Pebble-bed_reactor
Nuclear energy extracted from thorium isotopes
(ADS) – Type of nuclear reactor designPages displaying short descriptions of redirect targets Generation IV reactor – New nuclear reactor technologies under
Thorium-based_nuclear_power
Type of nuclear reactor cooled by molten sodium
"Chapter 5: Sodium-cooled Fast Reactors (SFRs)". In Pioro, Igor L. (ed.). Handbook of Generation IV Nuclear Reactors (2nd ed.). Woodhead Publishing.
Sodium-cooled_fast_reactor
Molten salt reactor prototype
detected, indicating successful nuclear breeding. The TMSR-LF1 is a Generation IV reactor constructed with the following specifications: Thermal power: 2
TMSR-LF1
US company, 2012 to 2018
conventional Generation IV reactor design: a uranium nitride fueled, lead-bismuth cooled reactor. They believed that using a liquid-metal-cooled fast reactor would
Gen4_Energy
Nuclear reactor where the coolant is liquid metal
metal. Liquid metal cooled reactors were first adapted for breeder reactor power generation. They have also been used to power nuclear submarines. Due to their
Liquid_metal_cooled_reactor
International Reactor Innovative and Secure (IRIS) is a Generation IV reactor design made by an international team of companies, laboratories, and universities
International Reactor Innovative and Secure
International_Reactor_Innovative_and_Secure
pebble-bed generation IV reactor partly based on the earlier HTR-10 prototype reactor. The reactor unit has a thermal capacity of 250 MW, and two reactors are
List of small modular reactor designs
List_of_small_modular_reactor_designs
Nuclear reactor generating more fissile material than it consumes
and BM-40A reactors as well as the SVBR-100 reactor. Three of the proposed generation IV reactor types are FBRs: Gas-cooled fast reactor cooled by helium
Breeder_reactor
Device that achieves nuclear fission without triggering a chain reaction
part of a light water reactor design, other proposals have been made that incorporate an ADS into other generation IV reactor concepts.[citation needed]
Subcritical_reactor
Indian fast breeder nuclear reactor design
The Prototype Fast Breeder Reactor (PFBR) is a 500 MWe pool type sodium-cooled, fast breeder reactor commissioned at the same site as the Madras Atomic
Prototype Fast Breeder Reactor
Prototype_Fast_Breeder_Reactor
Nuclear fission reactor
detection of leaks, were included, along with newer-generation emergency cooling systems for the main reactor core. It was developed by OKBM Afrikantov. "AKULA
OK-650_reactor
Alloy of lead and bismuth used as a coolant in nuclear reactors
coolant in some nuclear reactors, and is a proposed coolant for the lead-cooled fast reactor, part of the Generation IV reactor initiative. It has a melting
Lead-bismuth_eutectic
Indian nuclear reactor design
The Advanced Heavy-Water Reactor (AHWR) or AHWR-300 is an Indian Generation III+ reactor design developed by the Bhabha Atomic Research Centre and intended
Advanced_heavy-water_reactor
Russian sodium-cooled fast breeder reactor
reactor is expected to operate up until 2040. Energy portal Nuclear technology portal Russia portal Generation IV reactor BN-Reactor BN-350 reactor –
BN-600_reactor
Nuclear technology portal Russia portal Generation IV reactor BN-350 reactor BN-600 reactor BN-800 reactor BN-1200 reactor Klepikov, A Kh, Tazhibayeva, I L,
BN-Reactor
Nuclear energy company
cooperate on advanced reactors". World Nuclear News. Baldoni, Mattia (10 April 2024). "CEA and newcleo to Partner On Generation IV Reactors". "newcleo, Fincantieri
Newcleo
Power generated from nuclear reactions
already retired. Research into advanced generation IV reactor types was officially started by the Generation IV International Forum (GIF) based on eight
Nuclear_power
develop Generation IV reactor designs. One of two beneficiaries, Southern Company Services will use the funding to develop a Molten Chloride Fast Reactor, a
Southern_Company_Services
Nuclear reactor in Fujian province, China
is a generation IV demonstration project by the China National Nuclear Corporation (CNNC). Construction started in late 2017. These first reactor started
CFR-600
Russian nuclear pressurized water reactors
(Echo), and Project 627 Кит (November) first-generation submarines. It was a pressurized water reactor (PWR), using 21% enriched uranium-235 fuel to
VM_reactor
Nuclear reactor design
Vernova Hitachi Nuclear Energy (GVH). The S-PRISM represents GVH's Generation IV reactor solution to closing the nuclear fuel cycle and is also part of its
PRISM_(reactor)
Nuclear safety and security components in a nuclear power plant
reactor (evolutionary improvements of existing designs 1996–present) Generation IV reactor (technologies still under development unknown start date, possibly
Reactor_protection_system
Type of nuclear reactor that uses normal water
SCWR remains hypothetical as of 2009; it is a Generation IV design that is still a light-water reactor, but it is only partially moderated by light water
Light-water_reactor
plutonium as time goes on. Generation II thermal-neutron reactors (today's most numerous nuclear power stations) can reuse reactor-grade plutonium only to
Reactor-grade_plutonium
Type of nuclear reactor that uses molten material as fuel
inside the Petten high-flux reactor was underway. Generation IV reactor Thorium-based nuclear power List of small nuclear reactor designs Passive nuclear
Liquid fluoride thorium reactor
Liquid_fluoride_thorium_reactor
Nuclear power station located near Kemmerer, WY
will construct the rotatable plug assembly. Generation IV reactor Nuclear power in the United States Pequeño IV, Antonio (2024-03-19). "TerraPower: What
Kemmerer_Power_Station
Type of nuclear fission reactor
various reactor types, including generation IV, thermal-neutron reactors, fast-neutron reactors, molten salt reactor, and gas-cooled reactor models. Many
Small_modular_reactor
Type of Soviet nuclear power reactor
an early Generation II reactor and the oldest commercial reactor design still in wide operation. Certain aspects of the original RBMK reactor design had
RBMK
Nuclear reactor where water boils in core
A boiling water reactor (BWR) is a type of nuclear reactor used for the generation of electrical power. It is the second most common type of electricity-generating
Boiling_water_reactor
Isotope of polonium
reactors cooled with lead-bismuth eutectic rather than pure lead. However, given the eutectic properties of this alloy, some proposed Generation IV reactor
Polonium-210
Nuclear fission reactor
Лира (Lira or Alfa in NATO designation) fourth generation submarines. It is a liquid metal cooled reactor (LMR), using highly enriched uranium-235 fuel
OK-550_reactor
Proposed uses of generating power from nuclear fission and fusion
Generation IV reactor, next generation fission reactor designs claiming much higher safety, and greatly increased fuel use efficiency. Integral Fast Reactor, a
Nuclear_fusion–fission_hybrid
American nuclear technology company
boiling water reactor (BWR). The research into the project continued for the next 50 years resulting in the production of 6 different generations of BWRs.
GE Vernova Hitachi Nuclear Energy
GE_Vernova_Hitachi_Nuclear_Energy
Canadian heavy water nuclear reactor design
CANDU (Canada deuterium uranium) is a Canadian pressurized heavy-water reactor design used to generate electric power. The acronym refers to its deuterium
CANDU_reactor
Fast neutron research reactor
portal Generation IV reactor BN-800 reactor – generation IV sodium-cooled fast breeder reactor, operational since 2016 BREST-300 – generation IV lead-cooled
MBIR
Nuclear reactor design
Boiling Water Reactor (ESBWR) is a passively safe generation III+ reactor design derived from its predecessor, the Simplified Boiling Water Reactor (SBWR) and
Economic Simplified Boiling Water Reactor
Economic_Simplified_Boiling_Water_Reactor
American defense and energy company
GA-ASI. General Atomics is also developing a Generation IV reactor design, the Gas Turbine Modular Helium Reactor (GT-MHR). In 2010, General Atomics presented
General_Atomics
Type of nuclear reactor, CO2 or He cooled
an improved Generation II gas cooled reactor. In France, the UNGG was replaced by the pressurized water reactor (PWR). Gas-cooled reactor types include:
Gas-cooled_reactor
Nuclear reactor design
The advanced boiling water reactor (ABWR) is a Generation III boiling water reactor. The ABWR is currently offered by GE Vernova Hitachi Nuclear Energy
Advanced boiling water reactor
Advanced_boiling_water_reactor
2000 until 2005, was its last Director. Generation IV reactor Liquid fluoride thorium reactor Molten salt reactor Thorium-based nuclear power Ruz, Camila
The_Alvin_Weinberg_Foundation
Cancelled American reactor project
A Next Generation Nuclear Plant (NGNP) is a specific proposed generation IV very-high-temperature reactor (VHTR) that could be coupled to a neighboring
Next_Generation_Nuclear_Plant
Japanese multinational corporation
likely to be the most aggressive corporate venture into FBR and Generation IV reactor technology. In 2011, Mitsubishi launched the Type-J gas turbines
Mitsubishi_Heavy_Industries
European nuclear fuel company
which some Generation IV reactors need for fuel. In 2025 Urenco signed the first commercial contract to supply HALEU to Generation IV reactors. Urenco plans
Urenco_Group
Gas turbine using a working fluid in a closed loop
modular reactor was intended to be coupled with a helium CCGT. Future nuclear (Generation IV reactors) may employ CCGT for power generation, e.g. Flibe
Closed-cycle_gas_turbine
CATHARE code thermal-hydraulics simulation software
in most reactor design projects in the French nuclear sector, whether for Generation III power reactors (EPR, NUWARD), Generation IV reactors (sodium-cooled
CATHARE_(software)
ASEA-ATOM Gen IV, BWR-3000, BWR 75. The full reactor model name is ASEA-ATOM Gen I. The full reactor model name is ASEA-ATOM Gen II. The full reactor model name
List of commercial nuclear reactors
List_of_commercial_nuclear_reactors
Type of nuclear reactor
A pressurized water reactor (PWR) is a type of light-water nuclear reactor. PWRs are the most common type of nuclear power reactor, representing almost
Pressurized_water_reactor
Nuclear plant in Shandong, China
criticality of a generation IV commercial nuclear power plant, in September 2021. Reactor two achieved first criticality in November 2021. Reactor one was connected
Shidao Bay Nuclear Power Plant
Shidao_Bay_Nuclear_Power_Plant
Third-generation pressurised water nuclear reactor design
The EPR is a Generation III+ pressurised water reactor design. It has been designed and developed mainly by Framatome (part of Areva between 2001 and
EPR_(nuclear_reactor)
Russian nuclear fission reactor for use in submarines
Лира (Lira or Alfa in NATO designation) fourth generation submarines. It is a liquid metal cooled reactor (LMR), using highly enriched uranium-235 fuel
BM-40A_reactor
Test sodium-cooled fast reactor in Ōarai, Ibaraki, Japan
techniques in the experimental fast reactor Joyo. / In-pile testing and instrumentation for development of generation-IV fuels and materials. Proceedings
Jōyō_(nuclear_reactor)
Cancelled fast breeder reactor in France
Sodium Technological Reactor for Industrial Demonstration) was a proposal for a 600 MW sodium-cooled fast breeder reactor (Generation IV), proposed by the
ASTRID_(reactor)
American nuclear engineer
Transatomic Power was founded to design and develop a molten salt reactor (Generation IV reactor) to generate clean and low-cost nuclear power. In December 2012
Leslie_Dewan
Design project of a nuclear reactor coupled to a proton accelerator
neutron reactor Gas-cooled fast reactor Generation IV reactor Integral Fast Reactor Sodium-cooled fast reactor Mueller, Alex C. (2013). "Transmutation
MYRRHA
Soviet / Russian nuclear reactor type
nuclear coolant and the neutron moderator, in a reactor intended for energy generation. The idea of such a reactor was proposed[when?] at the Kurchatov Institute
VVER
number of planned reactor designs which include provision for online refuelling, including pebble-bed and molten salt Generation IV reactors. "Nuclear power
Online_refuelling
Thermal power station where the heat source is a nuclear reactor
100 reactors began operations, 107 were retired. An international coalition is advancing research and development on six Generation IV nuclear reactor technologies
Nuclear_power_plant
Nuclear plant in Shandong, China
portal Nuclear power in China List of commercial nuclear reactors § China Generation IV reactor "Zhaoyuan nuclear power plant". Global Energy Monitor. 25
Zhaoyuan_Nuclear_Power_Plant
Type of British nuclear reactor
advanced gas-cooled reactor (AGR) is a type of nuclear reactor designed and operated by the United Kingdom. These are the second generation of British gas-cooled
Advanced_gas-cooled_reactor
Thermochemical process used to produce hydrogen
Test Reactor, a reactor which reached first criticality in 1998, JAEA have the aspiration of using further nuclear very high-temperature generation IV reactors
Sulfur–iodine_cycle
Nuclear propulsion project
exploration. The first reactor tests are scheduled for the early 2020s; as of May 2020, the first orbital flight test of the reactor is planned for no earlier
TEM_(nuclear_propulsion)
2013 American film
nuclear reactors generation III reactor generation IV reactor integral fast reactor Experimental Breeder Reactor I Experimental Breeder Reactor II small
Pandora's_Promise
Overview of and topical guide to nuclear technology
reactor Fast neutron reactor Gas-cooled fast reactor Generation IV reactor Integral Fast Reactor Lead-cooled fast reactor Liquid-metal-cooled reactor
Outline_of_nuclear_technology
English writer and political activist (born 1963)
waste production; he contrasted this with two generation IV reactor concepts: "if integral fast reactors were deployed, the UK's stockpile of nuclear waste
George_Monbiot
Nuclear reactor
The RITM-200 is an integrated Generation III+ pressurized water reactor developed by OKBM Afrikantov and designed to produce 55 MWe. The design is an
RITM-200
Soviet marine nuclear reactor
The OK-150 reactor (1st generation) and its successor, the OK-900 reactor (2nd generation) are Soviet marine nuclear reactors used to power ships at sea
OK-150_reactor
American environmental organization
modular reactors and generation IV reactors. In February 2016, ClearPath's CEO Jay Faison proposed developing "super-competitive, next-generation" nuclear
ClearPath_Foundation
Situation with a low worst-case danger level
these are much more complex than the Dow F & E Index. Fail-safe Generation IV reactor Intrinsic safety Passive nuclear safety Prevention through design
Inherent_safety
Type of nuclear fuel
for use in the very-high-temperature reactor concept, one of the six classes of reactor designs in the Generation IV initiative that is attempting to reach
TRISO_fuel
different electricity generation sources Generation IV reactor – New nuclear reactor technologies under development Light Water Reactor Sustainability Program –
Economics_of_nuclear_power
Nuclear technology company developing the Integral Molten Salt Reactor
technology company working on Generation IV nuclear technology. The company is developing an Integral Molten Salt Reactor (IMSR). By late 2017, it was
Terrestrial_Energy
contribute to Generation IV reactor research through the MYRRHA project. There are two commercial nuclear power plants operational with seven reactors: Doel Nuclear
Nuclear_power_in_Belgium
Type of nuclear reactor
graphite-moderated nuclear reactors have been used in commercial electricity generation: Gas-cooled reactors Magnox UNGG reactor Advanced gas-cooled reactor (AGR) Water-cooled
Graphite-moderated_reactor
future solutions is concentrated on Generation IV reactors and nuclear fusion. Meanwhile, shutting down reactors presents new challenges. President Macron
History of France's civil nuclear program
History_of_France's_civil_nuclear_program
Legislation of the 117th United States Congress
lead. The largest single energy project to receive Act funds was a Generation IV reactor in Kemmerer, Wyoming by the nuclear fission startup TerraPower.
Infrastructure Investment and Jobs Act
Infrastructure_Investment_and_Jobs_Act
American politician (born 1953)
Advanced Nuclear for Clean Energy (ADVANCE) Act of 2023 in support of generation IV reactor technology and nuclear development in general. The ADVANCE Act was
Shelley_Moore_Capito
Nuclear reactor design
A pressurized heavy-water reactor (PHWR) is a nuclear reactor that uses heavy water (deuterium oxide D2O) as its coolant and neutron moderator. PHWRs
Pressurized heavy-water reactor
Pressurized_heavy-water_reactor
British author and journalist (born 1973)
featured in the 2013 pro-nuclear documentary film Pandora's Promise. Generation IV reactor research programs are developing the type of nuclear power described
Mark_Lynas
Naturally occurring uranium self-sustaining nuclear chain reactions
A natural nuclear fission reactor is a uranium deposit where self-sustaining nuclear chain reactions occur through natural geological processes rather
Natural nuclear fission reactor
Natural_nuclear_fission_reactor
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GENERATION IV-REACTOR
GENERATION IV-REACTOR
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GENERATION IV-REACTOR
GENERATION IV-REACTOR
GENERATION IV-REACTOR
GENERATION IV-REACTOR
GENERATION IV-REACTOR
GENERATION IV-REACTOR
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