The Russian design bureau ОКБМ Африкантов has presented a miniature and maintenance-free nuclear power plant. Everything is contained in a metal tank in the shape of a cistern and can even be placed under water. The power plant was designed to operate in Arctic conditions to power oil rigs, Arctic research units and other facilities that are currently powered by diesel generators, to which large amounts of fuel must be transported by helicopters.
The reactor module is completely maintenance-free. Just connect it to the network and press start. The power plant can run for a minimum of 8,000 hours (1 year) without interruption at full capacity of 24 MW. Service life is estimated at 30 years.
Miniature reactor modules are to be completely built at the factory under one roof and then transported in one piece to their destination. When the module is no longer needed, it can be moved to another location or sent to the factory for disassembly.
Source: https://www.atomic-energy.ru/photo/120146?fbclid=IwAR2-PJjPlJF_k9fGt4uZHwLecvAR7li1Uuoa0vevYfD8HrtNs1PfhJLliBM
Very interesting idea. I wonder there are other areas, where it can be used. Sadly, there are some serious limitations regarding the nuclear power in Space