Whats so weird about the idea. Carrier and submarines have nuclear drives since 1960. I can build nuclear power plants in hoi3 too. but they are not producing much energy. I try to find a way to produce enough energy for my overindustrialized germany. I can't trade for energy with the US, world leader in energy production. So how i am supposed to produce enough energy for 1000 german IC (with full civilian economy).