Nuclear energy
Slight increase in nuclear power production in 2023
In 2023, 13 EU countries with nuclear electricity production generated 619,601 gigawatt hours (GWh) of electricity, an increase of 1.7% compared with 2022, largely due to France completing maintenance of its nuclear reactors. Nuclear power plants from these 13 countries accounted for 22.8% of the total electricity production in the EU.
EU’s largest nuclear producer, France, generated 54.6% of the EU’s nuclear power (338,202 GWh). Spain followed with 58,873 GWh (9.2%), ahead of Sweden (48,470 GWh; 7.8%) and Finland (34,308 GWh; 5.5%).
Germany generated a total of 7,216 GWh in early 2023 before terminating nuclear production completely in April. This EU country was the second largest producer in the EU up until 2021.

Source dataset: nrg_bal_peh
The EU countries most reliant on nuclear electricity in 2023 were France (65.0% of all electricity generated) and Slovakia (62.0%). By contrast, only 1.4% of electricity produced in Germany and 3.3% in the Netherlands came from nuclear power plants.
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Methodological notes
- Germany closed its last nuclear reactor in April 2023.
- Denmark, Estonia, Ireland, Greece, Croatia, Italy, Cyprus, Latvia, Lithuania, Luxembourg, Malta, Austria, Poland and Portugal do not produce nuclear power.
- The nuclear power plant located in Slovenia is 50% co-owned by Croatia.
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