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.

Have you heard of balcony solar? Stick some storage with it?

https://en.wikipedia.org/wiki/Balcony_solar_power

Why should industry buy extremely expensive new built nuclear power when grid based zero marginal cost renewables are available?

If they’re having worries about price fluctuations then we already have markets for electricity futures. The perfect market for stable new built nuclear power.

The problem for new built nuclear power is that they need enormous tax payer based handouts to close the gap between the price of electricity futures and production cost. Let alone making a profit.

How does industry deal with 50% of the nuclear capacity having outages for months on end like happened in France during the energy crisis?