Nuclear & advanced marine propulsion products

Atomflot

Project 22220 (Arktika class) nuclear icebreakers

Nuclear-powered universal icebreaker

Twin RITM-200 reactor, ~60 MW universal icebreakers operated by Atomflot on the Northern Sea Route; four in service, three more under construction.

BWX Technologies

Naval nuclear reactors & components

Naval PWR reactors/cores

Naval nuclear reactors and reactor plant components for US Navy submarines (Virginia, Columbia, Ohio classes) and Nimitz/Ford-class carriers.

BWX Technologies

BWXT mPower (floating plant assessment)

SMR

Small modular reactor design assessed by CORE POWER for use in floating nuclear power plants.

China State Shipbuilding Corporation (CSSC)

KUN-24AP

Thorium MSR-powered container ship design

24,000 TEU container ship concept by Jiangnan Shipyard (CSSC) using a thorium-based Generation IV molten salt reactor.

CORE POWER

Maritime nuclear propulsion & floating nuclear power programme

Advanced reactor deployment programme

Ship-shaped nuclear power plants (Gen III+, ~300 MWe) and Gen IV nuclear propulsion for commercial ships.

HD Korea Shipbuilding & Offshore Engineering (KSOE)

SMR-powered container ship design

Nuclear-electric propulsion ship design

SMR-powered container ship concepts: a 15,000 TEU design with ABS AiP (2025) and a 16,000 TEU nuclear-electric propulsion JDP with ABS (2026).

KAERI (Korea Atomic Energy Research Institute)

MARINA

Marine molten salt SMR

Marine molten salt SMR platform for ship propulsion; twin-reactor 15,000 TEU container ship design received ABS AiP in July 2026.

newcleo

TL-40 marine lead-cooled reactor

Lead-cooled fast reactor (marine)

Lead-cooled fast reactor concept for propelling large ships, unveiled with Fincantieri and Pininfarina in May 2025; early design stage.

newcleo

n-Floating floating nuclear power plant

Floating LFR power plant

Barge-mounted plant hosting several 200 MWe LFR-AS-200 reactors; Bpifrance-funded concept study with Bureau Veritas and ABMI, deployment targeted 2036.

newcleo

LFR-AS-30 demonstration reactor

Lead-cooled fast SMR

30 MWe lead-cooled fast reactor planned as newcleo's demonstration unit in France around 2031.

OKBM Afrikantov

RITM-200

Marine PWR

Integral 175 MWt marine PWR; two units per Project 22220 Arktika-class nuclear icebreaker.

OKBM Afrikantov

KLT-40S

Marine PWR

150 MWt marine PWR used on the floating nuclear power plant Akademik Lomonosov; derived from icebreaker KLT-40 reactors.

Prodigy Clean Energy

Prodigy Microreactor Power Station / TNPP

Marine-based transportable nuclear power plant

Factory-built transportable nuclear plant for microreactors, with land-modular and marine variants for remote and coastal sites.

Prodigy Clean Energy

SMR Marine Power Station TNPP

Floating/marine SMR power plant

Marine structure housing small modular reactors for grid-scale coastal power generation with a minimal land footprint.

Rolls-Royce

PWR2 / PWR3

Naval pressurised water reactor

UK naval pressurised water reactor plants for Vanguard, Astute, Dreadnought and future SSN-AUKUS submarines.

Samsung Heavy Industries

MSR-powered 15,000 TEU container ship

Nuclear ship design

Neopanamax 15,000 TEU container ship design with two molten-salt SMRs, 25-knot speed; ABS Approval in Principle July 2026.

TechnicAtome

K15

Naval PWR

Compact naval pressurised water reactor (~150 MWt) powering Charles de Gaulle and Triomphant/Suffren-class submarines.

TechnicAtome

K22

Naval PWR

Next-generation naval reactor (~220 MWt); two units for France's new aircraft carrier PANG (France Libre), due 2038.