The EPR is a new generation (new reactor design).
As usual ramping it up implies to build one (the 'tête de série') or at max a few ones, then to launch series. We always did it this way.
Since 2005 4 projects were launched (France: Flamanville, Finland: Olkiluoto, China: Taishan, UK: Hinkley Point). The two first ones are ongoing disasters. Taishan was late and overbudget. Hinkley Point announced, 2 years into its launch, that it will be overschedule and overbudget.
In such a context launching now a huge amount of projects isn't realistic. When a project is late due to a lack of skills and project-management abilities (there is a report about this, the "rapport Folz"), launching 6 new projects may not be a terrific idea.
