Conclusion
Nuclear Reactors - Generalities 2. Nuclear Reactors Systems Review - Resources and Regeneration - Economy

The prerequisite for the longevity of nuclear fission energy on the scale of a sustainable human population is the regeneration of spent fissile nuclei. Nuclear energy is favorably positioned relative to other renewable energy sources in terms of cost-benefit ratio if both factors are evaluated comprehensively and fairly.

The recovery is driven by growth in Asia and the prospect of fleet renewal in Europe and the United States beyond 2030–2040.

Optimizing a multi-tiered Gen-IV-type fleet is the challenge of the end of the century. Framing the problem correctly is essential.

Progress is needed in design, methods, and technological innovation.