EU unveils 241 billion euros (280 billion dollars) nuclear expansion plan.
There is no EU-wide strategy or plan for nuclear expansion. Those 241 billion are the required investment to realize
both renewal and planned expansion of nuclear capacity (to those 109 GW, although considerable sums are simply for replacement of current capcaity) by
member states of the European Union.
The European Commission simply reported on these numbers in their 8th "Nuclear Illustrative Programme" (
PINC), a regular report they have to publish in accordance with Article 40 of the EURATOM treaty. Publishing this report does not mean the EC is planning, financing or even endorsing any of this. The publishing is part of the European Commission's role in ensuring nuclear safety in Europe.
Delivering Member States\' plans regarding nuclear energy will require significant investments, of around €241 billion until 2050, both for lifetime extensions of existing reactors and the construction of new large-scale reactors.
ec.europa.eu
That diagram in your post is from a pro-nuclear, anti-green lobby group with an aim to redirect subsidies for renewable energy production towards new nuclear power plants.