In their letter, heads of state and government first expressed their appreciation for the consistent efforts the European Union was undertaking towards climate-neutrality by 2050 with a new EU target of a net domestic reduction of at least 55% in greenhouse gas emissions by 2030 – their common goal to which they remain fully committed.

"Our concern is, however, that the path that is currently determined to achieve this goal leaves little room for internal policy making according to country specific conditions," stated the leaders. They expressed their conviction that the European Union should not only recognise but also actively support all available zero and low-emission technologies that contribute to climate neutrality while supporting other energy policy objectives.

"This is especially valid for nuclear power whose development is one of the primary objectives of the Treaty establishing the Euratom Community, obliging EU institutions to promote it. Also, the European Commission in its state aid decisions recognised the development of nuclear power as an objective of common interest, even though it may not be pursued by all Member States, while the Court of Justice of the EU, i.a. in a recent judgment on the Hinkley Point C project, confirmed that nuclear energy may benefit from State aid pursuant to Article 107(3)(c) TFEU, and that nuclear energy does not compromise the environmental objectives of the Treaty on the Functioning of the EU," wrote the leaders of EU Member States in their letter and continued that every Member State was thus free to develop nuclear power or refrain from it in mutual respect and regardless of policy choices of other Member States.

"However, the development of nuclear sector in the EU is contested by a number of Member States despite its indispensable contribution to fighting climate change, as well as the breadth of yet unexploited synergies between the nuclear and renewable technologies. As low-emission baseload, it guarantees the continued renewable deployment to much higher penetration levels. Nuclear power seems to be also a very promising source of low-carbon hydrogen at an affordable price and can play an important role in energy sector integration. It also generates a considerable number of stable, quality jobs, which will be important in the post-COVID recession," stated the leaders.

"In the light of the above we are highly concerned that the Member State’s right to choose between different energy sources and the right to determine the general structure of the energy supply (Article 194 TFEU) is currently heavily limited by EU policy making, which excludes nuclear power from more and more policies," outlined the seven heads of state and government. "We appreciate support for nuclear R&D, which was enshrined in the recent political agreements about ITER and Euratom R&D Programme. However, concentrating on technologies to be commercially applicable post 2050 as well as decommissioning activities and safety enhancements without an appropriate framework for nuclear new build could gradually phase out nuclear power and existing nuclear technologies, which will result in a significant loss of high quality jobs in many European countries. This is a great concern not only for nuclear new build but also to associated investments like adapting existing plants to hydrogen generation," the leaders have emphasised in the letter.

"Finally, all Member States are making the policy choices in the field of energy fully in line with EU law, including the Euratom Treaty. This is yet another argument of our urgent call to ensure a true level-playing field for nuclear power in the EU without excluding it from EU climate and energy policies and incentives, and bearing in mind that half of EU countries utilise or develop nuclear power providing close to half of EU low-emission generation, in line with the most stringent safety standards as ensured by the Euratom framework. Therefore, we welcome the recent statement by Vice-President Timmermans for IEA's Big Ideas underlining the Commission’s technology neutrality," stated the heads of state and government.

In the letter, Slovenian Prime Minister Janez Janša, Polish Prime Minister Mateusz Morawiecki, French President Emmanuel Macron, Czech Prime Minister Andrej Babiš, Hungarian Prime Minister Viktor Orban, Slovak Prime Minister of Igor Matovič and Romanian Prime Minister Florin Cîțu called on the European Commission to ensure that the EU energy and climate policy accommodates all paths to climate neutrality according to the technology neutrality principle.

"In this context, all available and future zero and low-emission technologies have to be treated equally within all policies, including taxonomy of sustainable investments, aiming at achieving climate neutrality by 2050. Reiterating our strong commitment to the green transition, we remain open to further exchange of views with you on this highly important topic," concluded the heads of state and government.