Existing nuclear power is something to keep around as long as it is safe and needed.
The problem is that new built western nuclear power requires ~18 cents/kWh (Vogtle, FV3, HPC etc.) when running at 100% 24/7 all year around, excluding backup, transmission costs and taxes.
Now try sell that electricity to a home owner with solar PV and maybe a battery and you will get laughed out of the room almost the entire year. A firming new built nuclear plant with ruinously high CAPEX and acceptable OPEX is economic lunacy.
This does not even take into account that new built nuclear power requires ~15-20 years from political decision to working plants.
As soon as new built nuclear power’s costs and timelines are confronted with reality it just does not work out.
Where are you getting 18 cents/kWh? Lazard?
Anyway, even if that were correct numbers, it would misleading on several fronts, as the only new western reactors were unrepresentative FOAK builds, and also troubled beyond just regular FOAK status.
Furthermore, the costs tend to be calculated for the period while they are repaying the loans, so it's mostly capital costs. Once the plant is paid off, the price drops dramatically.
The average build time is currently 6.5 years, median slightly less, trend downwards.
As I understand it, the technologies exist by which home owners who already have solar can draw only as much grid energy as they actually need. There are multiple uses of nuclear energy beyond home usage and there would be those who do not have access to adequate solar or wind energy. Apartment residences in large cities are one of the target segments.
> Now try sell that electricity to a home owner with solar PV and maybe a battery and you will get laughed out of the room.
In EU, the split between flats (apartments) and houses is roughly 50/50, depending on how densely populated the country is. In the US, it about 1/3 in apartments. Canada is roughly 50/50, with a slight detached-house bias.
Not that it doesn't mean houseowner vs renter. Landlords have next to zero incentive to install solar PV because renters pay for electricity. In the US about 7% of homes have solar, I don't know about EU and Canada.
Solar can't provide baseline and even in sunny SoCal, you will go back to the grid often enough that being off-the-grid isn't reasonable for the typical household.
Anyway, we still need new nuclear power plants.