The cost of flying has come down by 50% since 1980, and while an airplane is a simpler machine than a nuclear plant, the two industries also have a lot in common (such as the perception of risk not being in their favour).

By doing international standardization and coordination in ways similar to the aircraft industry, the same should be possible for the nuclear power industry.

It should be possible to consolidate most of global production down to a handful of companies (like Boing and Airbus), with a forest of subcontractors in the same way that was done for airliners, and achieve similar economies of scale.

Successful designs could be re-used over a period of 20 years or more, with only minor modernizations of things like electronics, like the Airbus A320 or Boing 747.

Ideally, we should have done this in 1980, but even if we start today, nuclear can provide a lot of energy at very competitive prices in the next 60-100 years. By then, we should have fusion or the ability to build energy storage cheeply enough to make renewables (probably solar) competitive.