Russian floating nuclear power station

Model of the Project 20870 (back) with a desalination unit (front)
Class overview
Builders	Baltic Shipyard
Operators	Rosatom
Built	2007-2018
In service	19 December 2019-present
Planned	at least 7
Building	3
Completed	1
Active	1
General characteristics
Type	Nuclear power station barge
Displacement	21,500 tonnes
Length	144.4 m (474 ft)
Beam	30 m (98 ft)
Height	10 m (33 ft)
Draught	5.6 m (18 ft)
Propulsion	none
Crew	69
Notes	2 modified KLT-40S nuclear reactors (icebreaker type) producing 70 MW electric or 300 MW heat power

Floating nuclear power stations (Russian: плавучая атомная теплоэлектростанция малой мощности, ПАТЭС ММ, lit. 'floating combined heat and power (CHP) low-power nuclear power plant') are vessels designed by Rosatom, the Russian state-owned nuclear energy corporation. They are self-contained, low-capacity, floating nuclear power plants. Rosatom plans to mass-produce the stations at shipbuilding facilities and then tow them to ports near locations that require electricity.

The work on such a concept dates back to the MH-1A in the United States, which was built in the 1960s into the hull of a World War II Liberty Ship,^[1] which was followed on much later in 2022 when the United States Department of Energy funded a three-year research study of offshore floating nuclear power generation.^[2] The Rosatom project is the first floating nuclear power plant intended for mass production. The initial plan was to manufacture at least seven of the vessels by 2015.^[3] On 14 September 2019, Russia’s first-floating nuclear power plant, Akademik Lomonosov, arrived to its permanent location in the Chukotka region.^[4] It started operation on 19 December 2019.^[5]