In addition to the other ones listed, the Olkiluoto nuclear plant in Finland takes tour groups. You have to book it 2 weeks in advance, and send personal inform

In addition to the other ones listed, the Olkiluoto nuclear plant in Finland takes tour groups. You have to book it 2 weeks in advance, and send personal information ahead, and have ID with you, but it is nice. Web info unfortunately only in Finnish, but guides can handle English of course: http://www.tvo.fi/vierailukeskus http://www.tvo.fi/vierailukeskus Also the other Finnish nuclear plant in Loviisa (with Soviet-designed PWR reactors) may take visitors but does not organize it on daily basis.