Novovoronezh NPP: power unit No.4 was shut down for routine repair

The radiation background at the NPP is normal. Average radiation background values in population areas, located within the 30-km Novovoronezh NPP area, correspond to the level of natural environmental values, typical for Central European Russia.
Novovoronezh NPP is a branch of Rosenergoatom Concern OJSC. The plant is situated on the bank of the Don River, 42 km to the south of Voronezh.This is the first NPP in Russia with VVER-type reactors (pressurized water reactors of the vessel type using light pressurized water). Each of the five plant reactors is the main one – a prototype of serial power-producing reactors: power unit No. 1 with the VVER-210 reactor, power unit No. 2 with the VVER-365 reactor, power units Nos. 3, 4 with the VVER-440 reactors, and power unit No. 5 with the VVER-1000 reactor. The first power unit was started up in 1964, the second – in 1969, the third – in 1971, the forth – in 1972, and the fifth – in 1979.
At present three power units are in operation (power units Nos. 1, 2 were shut down in 1984 and in 1990 respectively).