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Small Modular And Advanced Reactor Database

Total number of countries

19

Under construction

0

In operation

0

Conceptual design

0

Preliminary design

0

Basic design

0

Detailed design

0

Distribution by country of origin

US 38
Russia 17
China 10

Distribution by size

Small 23
Large 21
Medium 14

Distribution by electric output

No electric power 19
1 - 10 10
11 - 50 15

Distribution by thermal output

1 - 200 50
201 - 400 17
401 - 600 13

Distribution by fuel class

HALEU 56
LEU 47
MOX 14
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Showing 112 results
Name
Country
Reactor type Size
Electric Output (MWe)
Thermal Output (MWt)
Spectrum
Fuel class
Last Updated
OTRERA 300 France Liquid Metal Reactor Medium 110 300 Fast MOX 02 Jun 2026
SMR-300 US Boiling Water Reactor Large 300 1000 Thermal LEU 29 May 2026
PWR-20 (OPEN-20) US Pressurised Water Reactor Small 22 40 Thermal LEU 29 May 2026
KRONOS US Gas Cooled Reactor Small 15 10 - 45 Thermal HALEU 29 May 2026
LDR-50 Finland Pressurised Water Reactor No electric power non-power 10 - 50 Thermal LEU 28 May 2026
Newcleo LFR-AS-200 France Liquid Metal Reactor Medium 200 480 Fast MOX 27 May 2026
KLT-40S (Akademik Lomonosov) Russia Pressurised Water Reactor Small 35 150 Thermal HALEU 27 May 2026
Natrium Reactor US Liquid Metal Reactor Large 345 840 Fast HALEU 21 May 2026
Xe-100 US Gas Cooled Reactor Small 82 200 Thermal HALEU 19 May 2026
SEALER-55 Sweden Liquid Metal Reactor Small 55 140 Fast HALEU 19 May 2026
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