RITM 200

The KLT-40 family are nuclear fission reactors originating from OK-150 and OK-900 ship reactors. KLT-40 were developed to power the Taymyr-class icebreakers (KLT-40M, 171 MW) and the LASH carrier Sevmorput (KLT-40, 135 MW).[1] They are pressurized water reactors (PWR) fueled by either 30–40% or 90%[note 1] enriched uranium-235 fuel to produce 135 to 171 MW of thermal power.[2]

The KLT-40S variant is used in the Russian floating nuclear power station Akademik Lomonosov. It was developed by OKBM Afrikantov and produced by NMZ. The KLT-40S produces 150 MW thermal (about 52 MWe at 35% efficiency). It uses low-enriched uranium (LEU) fuel enriched below 20%, averaging at 14.1% enrichment, and has a fuel cycle of 3 years.[3]

The KLT-40 design was further improved and evolved into RITM-200 family of SMR.

Project 22220 icebreaker

Rosatom to begin work on land-based SMR

Scientific-Technical and Economic Aspects For Development Of Innovative Reactor Plants For Small And Medium Nuclear Power Plants

The Big Future of Small Power

The future of nuclear energy is closely intertwined with small modular reactors. For several decades now Rosatom has been involved in the development and safe operation of low-power reactors. Russia’s small reactor technologies underlie a great number of designs, including the world’s first nuclear power plant, nuclear icebreaker fleet, and the only floating power plant in the world.

Icebreaker Reactor Approved for Ground-Based Nuclear Plant

Feasibility study agreed for new nuclear in Kyrgyz Republic

Rosatom manufactures nuclear fuel assembly for the first land-based SMR] [[https://www.nucnet.org/news/russia-signs-agreement-to-help-develop-smrs-1-1-2022| Kyrgyzstan / Russia Signs Agreement To Help Develop SMRs

Russia / Tvel Manufactures Experimental Fuel Assembly For First Land-Based SMR

SLOWPOKE reactor

Small Nuclear Power Reactors world-nuclear.org