4S
Japan · 10 MWe · Metal-cooled
Toshiba
A-HTR-100
South Africa · 35 MWe · Gas-cooled
Eskom
ABV-6E
Russia · 9 MWe · Water-cooled
OKBM Afrikantov
ABV-6M
Russia · 9 MWe · Water-cooled
OKBM Afrikantov
ACP100
China · 125 MWe · Water-cooled
CNNC (NPIC)
ACP100S
China · 125 MWe · Water-cooled
CNNC
ACPR100
China · 140 MWe · Water-cooled
CGN
ACPR50S
China · 60 MWe · Water-cooled
CGN
AHWR-300 LEU
India · 300 MWe · Water-cooled
BARC
Allseas HTGR
Netherlands · 25 MWe · Gas-cooled
Allseas Engineering B.V.
AMR
South Africa · 3 MWe · Gas-cooled
STL Nuclear
Antares – SC-HTGR
France · 285 MWe · Gas-cooled
AREVA
AP300
USA · 330 MWe · Water-cooled
Westinghouse
ARC-100
Canada · 100 MWe · Metal-cooled
ARC Clean Technology
Aurora Powerhouse
USA · 75 MWe · Metal-cooled
Oklo
BANDI-60
South Korea · 60 MWe · Water-cooled
KEPCO E&C
Blossom Energy SMR
Japan · · Gas-cooled
Blossom Energy
Blue Capsule
France · 50 MWe · Metal-cooled
Blue Capsule Technology
BREST-OD-300
Russia · 300 MWe · Metal-cooled
NIKIET
BWRX-300
USA · 300 MWe · Water-cooled
GE Hitachi
CAL-30
France · 0 MWe · Water-cooled
Calogena
CAP150
China · 150 MWe · Water-cooled
SNERDI
CAP200 / LandStar-V
China · 200 MWe · Water-cooled
SNERDI
CAP50
China · 40 MWe · Water-cooled
SNERDI
CAREM25
Argentina · 32 MWe · Water-cooled
CNEA
CMSR
Denmark · 100 MWe · Molten salt cooled
Saltfloss Energy
Copenhagen Atomics Waste Burner
Denmark · 42 MWe · Molten salt cooled
Copenhagen Atomics
DEER
USA · 1 MWe · Gas-cooled
Radiant
DF300
Canada · 300 MWe · Metal-cooled
Dual Fluid Energy
DFBR-1
USA · 15 MWe · Water-cooled
Deep Fission
DHR400
China · 0 MWe · Water-cooled
CNNC
ELENA
Russia · 0.7 MWe · Water-cooled
Kurchatov Institute
Elysium MCSFR
USA · 50 MWe · Molten salt cooled
Elysium Industries
EM2
USA · 265 MWe · Gas-cooled
General Atomics
Energy Well
Czech Republic · 8 MWe · Gas-cooled
Czech Technical University
ENHS
USA · 50 MWe · Metal-cooled
UC Berkeley
eVinci
USA · 5 MWe · Heat pipe-cooled
Westinghouse
FLEX
UK · 24 MWe · Molten salt cooled
MoltexFLEX
Flexblue
France · 160 MWe · Water-cooled
Naval Group
Flibe LFTR
USA · 250 MWe · Molten salt cooled
Flibe Energy
FMR
USA · 44 MWe · Gas-cooled
General Atomics
FUJI
Japan · 200 MWe · Molten salt cooled
IThEMS
Gen4 module
USA · 25 MWe · Metal-cooled
Gen4 Energy
GT-MHR
Russia · 288 MWe · Gas-cooled
OKBM Afrikantov
GTHTR300
Japan · 200 MWe · Gas-cooled
JAEA
Halo 10
USA · 10 MWe · Water-cooled
Hadron Energy
HAPPY200
China · 0 MWe · Water-cooled
SPIC
HECTAR
South Korea · 0 MWe · Gas-cooled
KAERI
Hermes 2
USA · 50 MWe · Molten salt cooled
Kairos Power
Hermes demonstration plant
USA · 20 MWe · Molten salt cooled
Kairos Power
HEXANA
France · 150 MWe · Molten salt cooled
HEXANA
Holos Mono
USA · 10 MWe · Gas-cooled
HolosGen
Holos Quad
USA · 10 MWe · Gas-cooled
HolosGen
HTGR-POLA
Poland · 11.5 MWe · Gas-cooled
NCBJ
HTMR100
South Africa · 35 MWe · Gas-cooled
Stratek Global
HTR-PM
China · 105 MWe · Gas-cooled
INET/Tsinghua University
HTR50S
Japan · 17.2 MWe · Gas-cooled
JAEA
HTTR
Japan · 0 MWe · Gas-cooled
JAEA
i-SMR
South Korea · 170 MWe · Water-cooled
KAERI
IMSR400
Canada · 195 MWe · Molten salt cooled
Terrestrial Energy
JIMMY
Czech Republic · 1.5 MWe · Molten salt cooled
Jimmy Energy
KARAT-100
Russia · 100 MWe · Water-cooled
NIKIET
KARAT-45
Russia · 45 MWe · Water-cooled
NIKIET
KLT-40S
Russia · 35 MWe · Water-cooled
OKBM Afrikantov
KP-FHR
USA · 140 MWe · Molten salt cooled
Kairos Power
KRONOS MMR
USA · 15 MWe · Gas-cooled
NANO Nuclear Energy
LDR-50
Finland · 0 MWe · Water-cooled
Steady Energy
Leadir-PS100
Canada · 36 MWe · Metal-cooled
Northern Nuclear
LEUNR
Canada · 0 MWe · Water-cooled
Canadian Space Mining Corporation
LFR-AS-200
France · 200 MWe · Metal-cooled
newcleo
LFR-AS-30
France · 30 MWe · Metal-cooled
newcleo
LFR-TL-30
France · 30 MWe · Metal-cooled
newcleo
LOKI MMR
USA · 1.5 MWe · Gas-cooled
NANO Nuclear Energy
LSPR
Japan · 53 MWe · Metal-cooled
Tokyo Institute of Technology
MARVEL Research Microreactor
USA · 0.02 MWe · Metal-cooled
INL/DOE
MHR-100
Russia · 50 MWe · Gas-cooled
OKBM Afrikantov
MicroURANUS
South Korea · 20 MWe · Metal-cooled
MicroURANUS Corp.
Mini Fuji
Japan · 4 MWe · Molten salt cooled
IThEMS
MMR-10
USA · 10 MWe · Gas-cooled
Ultra Safe Nuclear Corporation
MMR-5
USA · 5 MWe · Gas-cooled
Ultra Safe Nuclear Corporation
MN-1
USA · 0.35 MWe · Gas-cooled
MobileNuclear Energy
Moltex SSR-Th
UK · · Molten salt cooled
Moltex Energy
Moltex SSR-W
UK · 300 MWe · Molten salt cooled
Moltex Energy
MoveluX
Japan · 3 MWe · Gas-cooled
Toshiba
mPower
USA · 195 MWe · Water-cooled
BWXT
MSR-1
USA · 0.4 MWe · Molten salt cooled
Natura Resources
MSR-100
USA · 100 MWe · Molten salt cooled
Natura Resources
Natrium
USA · 345 MWe · Metal-cooled
TerraPower
NHR200-II
China · 0 MWe · Water-cooled
INET/Tsinghua University
Nuclearis N1
USA · 17 MWe · Water-cooled
Nuclearis Energy
Nuscale micro
USA · 1 MWe · Water-cooled
NuScale Power
NuScale Power Module
USA · 77 MWe · Water-cooled
NuScale Power
NUWARD
France · 170 MWe · Water-cooled
EDF
ODIN
USA · 2 MWe · Molten salt cooled
NANO Nuclear Energy
Otrera
France · 110 MWe · Molten salt cooled
Otrera New Energy
PB-FHR
USA · 100 MWe · Molten salt cooled
UC Berkeley
PBMR-400
South Africa · 165 MWe · Gas-cooled
PBMR (Pty)
PeLUIt/RDE
Indonesia · 3 MWe · Gas-cooled
BATAN
PHWR-220
India · 220 MWe · Water-cooled
NPCIL
PRISM
USA · 311 MWe · Metal-cooled
GE Hitachi
PWR-20
USA · 20 MWe · Water-cooled
Last Energy
R1
USA · 0.3 MWe · Heat pipe-cooled
Antares Nuclear
Rapid-L
Japan · 0.2 MWe · Metal-cooled
CRIEPI
RITM-200M
Russia · 50 MWe · Water-cooled
OKBM Afrikantov
RITM-200N
Russia · 55 MWe · Water-cooled
OKBM Afrikantov
RITM-200S
Russia · 50 MWe · Water-cooled
OKBM Afrikantov
Rolls-Royce SMR
UK · 470 MWe · Water-cooled
Rolls-Royce
RUTA-70
Russia · 0 MWe · Water-cooled
NIKIET
SALUS-100
South Korea · 100 MWe · Molten salt cooled
KAERI
SEALER-55
Sweden · 3 MWe · Metal-cooled
LeadCold
SHELF-M
Russia · 6.6 MWe · Water-cooled
NIKIET
SMART
South Korea · 107 MWe · Water-cooled
KAERI
SMR-300
USA · 366 MWe · Water-cooled
Holtec International
SSR-U
UK · 16 MWe · Molten salt cooled
Moltex Energy
SSTAR
USA · 20 MWe · Metal-cooled
ANL
STAR
USA · 10 MWe · Metal-cooled
ANL
STAR-H2
USA · 175 MWe · Metal-cooled
ANL
STAR-LM
USA · 100 MWe · Metal-cooled
ANL
Starcore
Canada · 14 MWe · Gas-cooled
Starcore Nuclear
START
Switzerland · 220 MWe · Metal-cooled
Transmutex
Stellarium
France · 250 MWe · Molten salt cooled
Stellaria
SVBR-100
Russia · 100 MWe · Metal-cooled
AKME-Engineering
TEPLATOR
Czech Republic · 0 MWe · Water-cooled
UWB & CIIRC CTU
Thorcon TMSR
USA · 250 MWe · Molten salt cooled
ThorCon
THORIZON
Netherlands · 100 MWe · Molten salt cooled
Thorizon
TMSR-SF
China · 2 MWe · Molten salt cooled
Shanghai Institute of Applied Physics
U-Battery
UK · 4 MWe · Gas-cooled
Urenco
UNITHERM
Russia · 6.6 MWe · Water-cooled
NIKIET
VBER-300
Russia · 325 MWe · Water-cooled
OKBM Afrikantov
VK-300
Russia · 250 MWe · Water-cooled
NIKIET
Westinghouse LFR
USA · 450 MWe · Metal-cooled
Westinghouse
XAMR
France · 40 MWe · Molten salt cooled
Naarea
Xe-100
USA · 80 MWe · Gas-cooled
X-energy
XENITH
USA · 5 MWe · Gas-cooled
X-energy
4S
Japan · 10 MWe · Metal-cooled
Toshiba
A-HTR-100
South Africa · 35 MWe · Gas-cooled
Eskom
ABV-6E
Russia · 9 MWe · Water-cooled
OKBM Afrikantov
ABV-6M
Russia · 9 MWe · Water-cooled
OKBM Afrikantov
ACP100
China · 125 MWe · Water-cooled
CNNC (NPIC)
ACP100S
China · 125 MWe · Water-cooled
CNNC
ACPR100
China · 140 MWe · Water-cooled
CGN
ACPR50S
China · 60 MWe · Water-cooled
CGN
AHWR-300 LEU
India · 300 MWe · Water-cooled
BARC
Allseas HTGR
Netherlands · 25 MWe · Gas-cooled
Allseas Engineering B.V.
AMR
South Africa · 3 MWe · Gas-cooled
STL Nuclear
Antares – SC-HTGR
France · 285 MWe · Gas-cooled
AREVA
AP300
USA · 330 MWe · Water-cooled
Westinghouse
ARC-100
Canada · 100 MWe · Metal-cooled
ARC Clean Technology
Aurora Powerhouse
USA · 75 MWe · Metal-cooled
Oklo
BANDI-60
South Korea · 60 MWe · Water-cooled
KEPCO E&C
Blossom Energy SMR
Japan · · Gas-cooled
Blossom Energy
Blue Capsule
France · 50 MWe · Metal-cooled
Blue Capsule Technology
BREST-OD-300
Russia · 300 MWe · Metal-cooled
NIKIET
BWRX-300
USA · 300 MWe · Water-cooled
GE Hitachi
CAL-30
France · 0 MWe · Water-cooled
Calogena
CAP150
China · 150 MWe · Water-cooled
SNERDI
CAP200 / LandStar-V
China · 200 MWe · Water-cooled
SNERDI
CAP50
China · 40 MWe · Water-cooled
SNERDI
CAREM25
Argentina · 32 MWe · Water-cooled
CNEA
CMSR
Denmark · 100 MWe · Molten salt cooled
Saltfloss Energy
Copenhagen Atomics Waste Burner
Denmark · 42 MWe · Molten salt cooled
Copenhagen Atomics
DEER
USA · 1 MWe · Gas-cooled
Radiant
DF300
Canada · 300 MWe · Metal-cooled
Dual Fluid Energy
DFBR-1
USA · 15 MWe · Water-cooled
Deep Fission
DHR400
China · 0 MWe · Water-cooled
CNNC
ELENA
Russia · 0.7 MWe · Water-cooled
Kurchatov Institute
Elysium MCSFR
USA · 50 MWe · Molten salt cooled
Elysium Industries
EM2
USA · 265 MWe · Gas-cooled
General Atomics
Energy Well
Czech Republic · 8 MWe · Gas-cooled
Czech Technical University
ENHS
USA · 50 MWe · Metal-cooled
UC Berkeley
eVinci
USA · 5 MWe · Heat pipe-cooled
Westinghouse
FLEX
UK · 24 MWe · Molten salt cooled
MoltexFLEX
Flexblue
France · 160 MWe · Water-cooled
Naval Group
Flibe LFTR
USA · 250 MWe · Molten salt cooled
Flibe Energy
FMR
USA · 44 MWe · Gas-cooled
General Atomics
FUJI
Japan · 200 MWe · Molten salt cooled
IThEMS
Gen4 module
USA · 25 MWe · Metal-cooled
Gen4 Energy
GT-MHR
Russia · 288 MWe · Gas-cooled
OKBM Afrikantov
GTHTR300
Japan · 200 MWe · Gas-cooled
JAEA
Halo 10
USA · 10 MWe · Water-cooled
Hadron Energy
HAPPY200
China · 0 MWe · Water-cooled
SPIC
HECTAR
South Korea · 0 MWe · Gas-cooled
KAERI
Hermes 2
USA · 50 MWe · Molten salt cooled
Kairos Power
Hermes demonstration plant
USA · 20 MWe · Molten salt cooled
Kairos Power
HEXANA
France · 150 MWe · Molten salt cooled
HEXANA
Holos Mono
USA · 10 MWe · Gas-cooled
HolosGen
Holos Quad
USA · 10 MWe · Gas-cooled
HolosGen
HTGR-POLA
Poland · 11.5 MWe · Gas-cooled
NCBJ
HTMR100
South Africa · 35 MWe · Gas-cooled
Stratek Global
HTR-PM
China · 105 MWe · Gas-cooled
INET/Tsinghua University
HTR50S
Japan · 17.2 MWe · Gas-cooled
JAEA
HTTR
Japan · 0 MWe · Gas-cooled
JAEA
i-SMR
South Korea · 170 MWe · Water-cooled
KAERI
IMSR400
Canada · 195 MWe · Molten salt cooled
Terrestrial Energy
JIMMY
Czech Republic · 1.5 MWe · Molten salt cooled
Jimmy Energy
KARAT-100
Russia · 100 MWe · Water-cooled
NIKIET
KARAT-45
Russia · 45 MWe · Water-cooled
NIKIET
KLT-40S
Russia · 35 MWe · Water-cooled
OKBM Afrikantov
KP-FHR
USA · 140 MWe · Molten salt cooled
Kairos Power
KRONOS MMR
USA · 15 MWe · Gas-cooled
NANO Nuclear Energy
LDR-50
Finland · 0 MWe · Water-cooled
Steady Energy
Leadir-PS100
Canada · 36 MWe · Metal-cooled
Northern Nuclear
LEUNR
Canada · 0 MWe · Water-cooled
Canadian Space Mining Corporation
LFR-AS-200
France · 200 MWe · Metal-cooled
newcleo
LFR-AS-30
France · 30 MWe · Metal-cooled
newcleo
LFR-TL-30
France · 30 MWe · Metal-cooled
newcleo
LOKI MMR
USA · 1.5 MWe · Gas-cooled
NANO Nuclear Energy
LSPR
Japan · 53 MWe · Metal-cooled
Tokyo Institute of Technology
MARVEL Research Microreactor
USA · 0.02 MWe · Metal-cooled
INL/DOE
MHR-100
Russia · 50 MWe · Gas-cooled
OKBM Afrikantov
MicroURANUS
South Korea · 20 MWe · Metal-cooled
MicroURANUS Corp.
Mini Fuji
Japan · 4 MWe · Molten salt cooled
IThEMS
MMR-10
USA · 10 MWe · Gas-cooled
Ultra Safe Nuclear Corporation
MMR-5
USA · 5 MWe · Gas-cooled
Ultra Safe Nuclear Corporation
MN-1
USA · 0.35 MWe · Gas-cooled
MobileNuclear Energy
Moltex SSR-Th
UK · · Molten salt cooled
Moltex Energy
Moltex SSR-W
UK · 300 MWe · Molten salt cooled
Moltex Energy
MoveluX
Japan · 3 MWe · Gas-cooled
Toshiba
mPower
USA · 195 MWe · Water-cooled
BWXT
MSR-1
USA · 0.4 MWe · Molten salt cooled
Natura Resources
MSR-100
USA · 100 MWe · Molten salt cooled
Natura Resources
Natrium
USA · 345 MWe · Metal-cooled
TerraPower
NHR200-II
China · 0 MWe · Water-cooled
INET/Tsinghua University
Nuclearis N1
USA · 17 MWe · Water-cooled
Nuclearis Energy
Nuscale micro
USA · 1 MWe · Water-cooled
NuScale Power
NuScale Power Module
USA · 77 MWe · Water-cooled
NuScale Power
NUWARD
France · 170 MWe · Water-cooled
EDF
ODIN
USA · 2 MWe · Molten salt cooled
NANO Nuclear Energy
Otrera
France · 110 MWe · Molten salt cooled
Otrera New Energy
PB-FHR
USA · 100 MWe · Molten salt cooled
UC Berkeley
PBMR-400
South Africa · 165 MWe · Gas-cooled
PBMR (Pty)
PeLUIt/RDE
Indonesia · 3 MWe · Gas-cooled
BATAN
PHWR-220
India · 220 MWe · Water-cooled
NPCIL
PRISM
USA · 311 MWe · Metal-cooled
GE Hitachi
PWR-20
USA · 20 MWe · Water-cooled
Last Energy
R1
USA · 0.3 MWe · Heat pipe-cooled
Antares Nuclear
Rapid-L
Japan · 0.2 MWe · Metal-cooled
CRIEPI
RITM-200M
Russia · 50 MWe · Water-cooled
OKBM Afrikantov
RITM-200N
Russia · 55 MWe · Water-cooled
OKBM Afrikantov
RITM-200S
Russia · 50 MWe · Water-cooled
OKBM Afrikantov
Rolls-Royce SMR
UK · 470 MWe · Water-cooled
Rolls-Royce
RUTA-70
Russia · 0 MWe · Water-cooled
NIKIET
SALUS-100
South Korea · 100 MWe · Molten salt cooled
KAERI
SEALER-55
Sweden · 3 MWe · Metal-cooled
LeadCold
SHELF-M
Russia · 6.6 MWe · Water-cooled
NIKIET
SMART
South Korea · 107 MWe · Water-cooled
KAERI
SMR-300
USA · 366 MWe · Water-cooled
Holtec International
SSR-U
UK · 16 MWe · Molten salt cooled
Moltex Energy
SSTAR
USA · 20 MWe · Metal-cooled
ANL
STAR
USA · 10 MWe · Metal-cooled
ANL
STAR-H2
USA · 175 MWe · Metal-cooled
ANL
STAR-LM
USA · 100 MWe · Metal-cooled
ANL
Starcore
Canada · 14 MWe · Gas-cooled
Starcore Nuclear
START
Switzerland · 220 MWe · Metal-cooled
Transmutex
Stellarium
France · 250 MWe · Molten salt cooled
Stellaria
SVBR-100
Russia · 100 MWe · Metal-cooled
AKME-Engineering
TEPLATOR
Czech Republic · 0 MWe · Water-cooled
UWB & CIIRC CTU
Thorcon TMSR
USA · 250 MWe · Molten salt cooled
ThorCon
THORIZON
Netherlands · 100 MWe · Molten salt cooled
Thorizon
TMSR-SF
China · 2 MWe · Molten salt cooled
Shanghai Institute of Applied Physics
U-Battery
UK · 4 MWe · Gas-cooled
Urenco
UNITHERM
Russia · 6.6 MWe · Water-cooled
NIKIET
VBER-300
Russia · 325 MWe · Water-cooled
OKBM Afrikantov
VK-300
Russia · 250 MWe · Water-cooled
NIKIET
Westinghouse LFR
USA · 450 MWe · Metal-cooled
Westinghouse
XAMR
France · 40 MWe · Molten salt cooled
Naarea
Xe-100
USA · 80 MWe · Gas-cooled
X-energy
XENITH
USA · 5 MWe · Gas-cooled
X-energy