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Smolensk

Smolensk, nuclear power plant in Russia, operates 3 graphite-moderated light water reactors with 2,775 MW net installed capacity and has been in service since 1983.

LWGR technology exists in only 2 countries worldwide. Unit Smolensk 1-1 has been operating for 43 years, since 1983. Its 2,775 MW net are enough to supply about 8,740,000 households.

Country
Russia
Units
3
Technology
LWGR
Net capacity
2,775 MWe
First grid connection
1983
Operator
Rosenergoatom
Owner
Rosatom
Status
Operating
Operating capacity
2,775 MWe
net electrical
Units
3
3 operating
First start-up
1983
Smolensk
Photo: Wikimedia Commons · author and license

Units

Data: IAEA PRIS · Global Energy Monitor · updated on Aug 1, 2026

Smolensk 1-1, a 925 MWe LWGR (RBMK-1000), started construction in 1975, was connected to the grid in 1982 and is still operating, with a 79.6% load factor in 2024.

Smolensk 1-2, a 925 MWe LWGR (RBMK-1000), started construction in 1976, was connected to the grid in 1985 and is still operating, with a 84.6% load factor in 2024.

Smolensk 1-3, a 925 MWe LWGR (RBMK-1000), started construction in 1984, was connected to the grid in 1990 and is still operating, with a 90.2% load factor in 2024.

Operator: Rosenergoatom.

Owner: Rosatom (Smolensk 1-1, Smolensk 1-2, Smolensk 1-3).

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