First, let's start with the fact that €8B is a wrong number. The last estimate is €7–7.5B. Next, you should consider the following factors: - The Finish nuclea

First, let's start with the fact that €8B is a wrong number. The last estimate is €7–7.5B. Next, you should consider the following factors: - The Finish nuclear regulation is quite paranoid, even by "western" standards. Also add political pressure on the top of it. - The project probably includes significant modification of the standard Russian design. Meaning additional design and certification costs. While Russia and most other foreign countries use mostly "standard" designs. But note that it's effectively a one-time cost, i.e. it will not apply to the same extent to additional reactors in the same country. - It's a greenfield project, meaning the cost includes supporting infrastructure. Building additional reactors at an existing site or close to it will be noticeably cheaper (as the case with VVERs build today in Russia). - Usually, in such projects the hosting side wrestles as much as possible for stuff to be built and procured locally. Meaning, labor and materials which are relatively cheap in Russia/Turkey/Egypt/etc. will cost 1.5-3x more in Finland.