Europe: largest nuclear reactors by capacity 2024

Leading nuclear power reactors in operation in Europe as of December 2024, by gross capacity (in megawatts)

Largest nuclear power reactors Europe 2024, by gross capacity

Last update:

Sep 17, 2025

Author:

��ƽ�� Research Department

Region:

Europe

Survey time period:

December 31, 2024

Among the nuclear reactors with the highest capacity in Europe, one was in Finland, one in Sweden, and the remaining were located in France. The largest nuclear energy reactor in Europe was Finland's Olkiluoto 3, which started operations in May 2023, with a capacity of terawatts.

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Leading nuclear power reactors in operation in Europe as of December 2024, by gross capacity (in megawatts)

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