The LR-0 research reactor is a light-water, zero-power, pool-type reactor. It serves as an experimental reactor for measuring neutron-physical characteristics of VVER (Water-Water Energetic Reactor) type reactors.

It provides a scientific and technological facility for experiments in the area of active zone physics and shielding of light water VVER (Temelín, Dukovany and other Russian-design reactors), experiments related to the storage of spent fuel from nuclear power plants and providing advice for the nuclear power industry.

Maximal thermal power: 5 kW