The power unit ?3 of the Leningrad NPP was stopped by an agreed application filed by the JSC "Concern Rosenergoatom" for performing repair works on thermal and mechanical equipment on September 12, 2015.
 
There were no violations of limits and conditions of safe operation at the Leningrad NPP.

There are three power units in work at the nuclear power plant - ??1, 2, 4 with a total capacity of 3000 MW.

The radiation background is unchanged and corresponds to natural values on an industrial platform of the Leningrad nuclear power plant, in the city Sosnovy Bor and the surrounding territory.

The Leningrad nuclear power plant is the JSC "Rosenergoatom Concern" branch. The station is located in the city Sosnovy Bor in 80 km to the west of St. Petersburg on the bank of the Finland Gulf. The Leningrad NPP is the country's first station with RBMK-1000 reactors (uranium - graphite nuclear reactors of channel type on thermal neutrons). 4 power units with electric capacity of 1000 MWt each operate at the nuclear power plant.