It is not. And the total cost of 6+5 billion euros for the nuclear power plant is not cheap.
Due to the Chernobyl and Fukushima accidents any nuclear power projects today are always an uphill battle with the increasingly difficult to fulfill regulations. At the same time there will be strong political pressures from outside sources like Greenpeace.
If the safety regulations for cars were as stringent with respect to the risks involved there would be no cars at all. Even walking on the streets would be forbidden without using a helmet.
> As you can see: Cheap and fast to build.
How is 17+ years (with a 12+ year delay) "fast"?