June 10, 2021 Construction of a new BREST-OD-300 fast neutron reactor has begun at a site in Siberia, part of a demonstration project by Rosatom, the Russian state-owned nuclear power company. — courtesy Rosatom A cutaway of the BREST-OD-300 reactor. — courtesy Rosatom SEVERSK, Russia — The construction of a 300 MW nuclear power unit enabled with the innovative BREST-OD-300 lead-cooled fast reactor has begun at the site of the Siberian Chemical Combine (an enterprise of Rosatom-subsidiary TVEL Fuel Company) in Seversk, Russia’s Tomsk region (South-West Siberia). The reactor will run on mixed uranium-plutonium nitride fuel (MNUP fuel), specially developed for this facility (it is considered to be the optimal solution for fast reactors).