To February 2025, there is a total of 166 nuclear power reactors with an installed electric net capacity of 148,959 MWe in operation in Europe (six thereof in the Asian part of the Russian Federation) and 9 units with an electric net capacity of 9,969 MWe were under construction in four countries.

 

Country

in operation

under construction

number

net capacity MWe

number

net capacity MWe

Belarus

2

2.220

Belgium

4

3.483

Bulgaria

2

2.006

Czech Republic

6

3.934

Finland

5

4.394

France

57

63.000

Hungary

4

1.916

Netherlands

1

482

Romania

2

1.300

Russia

36

26.802

4

3.759

Slovakia

5

2.308

1

440

Slovenia

1

688

Spain

7

7.121

Sweden

6

6.882

Switzerland

4

2.960

Ukraine

15

13.107

2

2.070

United Kingdom

9

5.883

2

3.260

total

166

148.959

9

9.969

Nuclear power plant units in Europe, in operation and under construction (Last update – 14th February 2025)

In terms of electricity globally generated by nuclear energy in 2023, France holds the top position with a share of 64.8%, followed by Slovakia (61.3%) and Hungary (48.8%), then Finland (42%).

 

Nuclear Power Reactors in Operation in Europe, 14th February 2025