We are talking about construction costs.
This has nothing to do with nuclear energy. The major manufacturers of all sorts of things, including building materials, have lobbied themselves out of the electricity prices for ordinary people. From a cost perspective, it does not matter where their subsidized electricity comes from.
Green energy is not expensive because it is costly to produce (it is cheap there!), but because it is scarce. And because, as an end consumer, you have to bear the subsidy for the big players.
Why people are considering nuclear energy is not logical upon reflection. First, nuclear waste as “already there costs” is nonsense. Every additional ton costs extra in final storage. Transport and processing. Only the started storage site is “already there,” nothing else.
Second, nuclear energy is expensive. You don’t notice because it is the most subsidized form of energy. The final storage issue is kept away from electricity prices by the operators. Liability insurance as well. The true price of a kWh of nuclear power, which includes all this, would not be economically competitive at all. Only shifting a problem into a future beyond the price horizon makes the price acceptable. New, safe technology for operation helps little here.
Who pays for the final storage research in the two German research centers? Who will pay for the application of the results?
Selling this form of subsidy as “sunken costs” shows chutzpah.
Meanwhile, construction costs do not depend only on energy, but also on the scarcity of skilled workers, rising land prices, and buyers who, unlike before, often start with an inheritance on the equity side and can thus pay the prices. Market economy, supposedly something good and fair?
And the way people today want to move into a 180 sqm house fully equipped compared to how our grandparents got land and a house: people are largely to blame for that themselves. Period!